Compress report for pressure vessel

Settings Summary Datum Line Location: -38.00 mm from bottom seam Design ASME Section VIII Division 1, 2010 Edition Metric Design or Rating: Get Thickness from Pressure

Minimum thickness: 1.5 mm per UG-16(b)

Design for cold shut down only: No

Design for lethal service (full radiography required): No

Design nozzles for: Design P, find nozzle MAWP and MAP

Corrosion weight loss: 100% of theoretical loss

UG-23 Stress Increase: 1.20

Skirt/legs stress increase: 1.0

Minimum nozzle projection: 152.4 mm

Juncture calculations for a > 30 only: No

Preheat P-No 1 Materials > 1.25" and <= 1.50" thick: No

UG-37(a) shell tr calculation considers longitudinal stress: Yes Butt welds are tapered per Figure UCS-66.3(a). Hydro/Pneumatic Test Shop Hydrotest Pressure: 1.3 times vessel MAP

Test liquid specific gravity: 1.00

Field Hydrotest Pressure: 1.3 times vessel MAWP

Wind load present @ field: 100% of design

Maximum stress during test: 90% of yield Required Marking - UG-116 UG-116(e) Radiography: RT1

UG-116(f) Postweld heat treatment: HT Code Cases\Interpretations Use Code Case 2547: No

Apply interpretation VIII-1-83-66: Yes




No UCS-66.1 MDMT reduction: No

No UCS-68(c) MDMT reduction: No

Disallow UG-20(f) exemptions: No UG-22 Loadings UG-22(a) Internal or External Design Pressure : Yes

UG-22(b) Weight of the vessel and normal contents under operating or test conditions: Yes

UG-22(c) Superimposed static reactions from weight of attached equipment (external loads): No

UG-22(d)(2) Vessel supports such as lugs, rings, skirts, saddles and legs: Yes

UG-22(f) Wind reactions: Yes

UG-22(f) Seismic reactions: No

UG-22(j) Test pressure and coincident static head acting during the test: YesNote: UG-22(b),(c) and (f) loads only considered when supports are present.

V-8601 1

shell check head checkV-8601 3.5 1.0342 150 150 2.6 1.0342 150 150 1,990 6,500 15 15 6 7.8846154 PASS 7.884615 PASS

V-8601 3.5 1.0342 150 150 2.6 1.0342 150 150 1,990 6,500 PASS

Data Steam out condition

ItemPdesign in/out Tdesign Pdesign in/out

Design checked with DEP 31.22.20.31-Gen January 2010 standard

Table.1 Thickness calculation as per para. 4.1

Norminal thickness

shell head

TdesignID of shell tan/tan CAin

ItemPdesign in/out Tdesign Pdesign in/out Tdesign

in out in out in

in out in

Minimum thickness as para 4.1.1DEP. (D/650+1.8+C.A)

Data Steam out condition

out out

Table.2 Length of skirt support calculation as per para. 4.13

out in out ID of skirt tan/tanNorminal thickness

in outActual length of skirt as per GA.

DWGs

670

check

10

Minimum length of skirt as para 4.13.1

2(Rt)1/2

199.4993734

Skirt

V-8601 2

Weight Summary

Component

Weight ( kg) Contributed by Vessel Elements Surface

Area m2

Metal New*

Metal Corroded* Insulation Insulation

Supports Lining Piping

+ Liquid

Operating Liquid Test Liquid

New Corroded New Corroded

Top Head 482.8 259.5 343.7 40 0 0 1,146.1 1,173.4 1,161.1 1,188.9 5.08

Shell 4,662.3 2,806.1 2,952.6 640 0 0 19,818 20,063.9 20,078.4 20,327.5 39.98

Bottom Head 490.4 263.5 343.7 40 0 0 1,134.9 1,161.5 1,150.1 1,177.2 5.15

Support Skirt 1

331.4 232 0 0 0 0 0 0 0 0 8.5

Support Skirt 2

741.9 519.4 0 0 0 0 0 0 0 0 19.04

Support Skirt 3

741.9 519.4 0 0 0 0 0 0 0 0 19.04

Support Skirt 4

741.9 519.4 0 0 0 0 0 0 0 0 19.04

Support Skirt 5

541.1 378.8 0 0 0 0 0 0 0 0 13.89

Support Skirt 6

747.9 523.5 0 0 0 0 0 0 0 0 19.19

Skirt Base Ring

630.5 630.5 0 0 0 0 0 0 0 0 6.32

TOTAL: 10,112.2 6,651.9 3,640 720 0 0 22,099 22,398.8 22,389.7 22,693.6 155.23

* Shells with attached nozzles have weight reduced by material cut out for opening.

Component

Weight ( kg) Contributed by Attachments

Surface Aream2 Body Flanges Nozzles &

Flanges PackedBeds

Ladders &Platforms Trays Tray

Supports Rings &

Clips Vertical Loads

New Corroded New Corroded

Top Head 0 0 74.4 63.1 0 0 0 0 0 0 0.57

Shell 0 0 1,122.1 1,044.4 5,691.8 0 0 0 168.2 0 7.95

Bottom Head 0 0 27.4 22.1 0 0 0 0 0 0 0.26

Support Skirt 1 0 0 0 0 0 0 0 0 0 0 0

Support Skirt 2 0 0 0 0 0 0 0 0 0 0 0

Support Skirt 3 0 0 0 0 0 0 0 0 0 0 0

Support Skirt 4 0 0 0 0 0 0 0 0 0 0 0

Support Skirt 5 0 0 0 0 0 0 0 0 0 0 0

Support Skirt 6 0 0 0 0 0 0 0 0 0 0 0

Skirt Base Ring 0 0 0 0 0 0 0 0 13.8 0 0.12

TOTAL: 0 0 1,223.9 1,129.6 5,691.8 0 0 0 182 0 8.89

Vessel operating weight, Corroded:

40,414 kg

Vessel operating weight, New: 43,669 kg Vessel empty weight, Corroded: 18,015 kg Vessel empty weight, New: 21,570 kg Vessel test weight, New: 38,268 kg Vessel test weight, Corroded: 35,017 kg Vessel surface area: 164.12 m2

V-8601 3

Vessel center of gravity location - from datum - lift condition Vessel Lift Weight, New: 17,930 kg Center of Gravity: 1,282.69 mm Note: Vessel lift weight includes weight of insulation supports as they are assumed to be shop installed. Vessel Capacity Vessel Capacity** (New): 22,280 liters Vessel Capacity** (Corroded): 22,574 liters **The vessel capacity does not include volume of nozzle, piping or other attachments.

V-8601 4

Design Conditions

V-8601 5

DESIGN CODE : ASME SEC. VIII DIV.1 2010 EDITIONPROCESS FLUID(GAS/LIQUID) : SOUR GAS/WATERDENSITY OF LIQUID (OPER./DESIGN) : 987.03/1000 Kg/m3

DESIGN FILLING : 100%DESIGN PRESSURE (INTERNAL/EXTERNAL) 3.5/FV. bar(g) AT 150 OCOPERATING PRESSURE (Max./Normal/Min.) -/0.8/- bar(g) AT -/50/- OCHYDROTEST PRESSURE (AT SHOP) 17.52 bar(g)CORRODED HYDROTEST PRESSURE (AT SITE) 7.4 bar(g)MAXIMUM ALLOWABLE WORKING PRESSURE 5.69 bar(g) AT 150 OCMAXIMUM ALLOWABLE EXTERNAL WORKING PRESSURE 1.03 bar(g) AT 150 OCMINIMUM DESIGN METAL TEMPERATURE 15 OC AT 5.69 bar(g)CORROSION ALLOWANCE (INTERNAL/EXTERNAL) 6/0 mmVESSEL TYPE : VERTICAL TYPE OF HEAD : ED 2:1TYPE OF SUPPORT : SKIRT SUPPORT SEISMIC LOAD : UBC ZONE 0IMPACT TEST : NO DESIGN WIND SPEED : 40 m/s HARDNESS TEST : NO POSTWELD HEAT TREATMENT : YESINSULATION : H-70 FIRE PROOFING COATING : N/A

COMPONENTSHELL HEAD

SHELL,HEAD,REINFORCING PADS : A516 Gr 60N+HIC BOLT/NUT (INT) : SS 316FLANGE : A 105 N UPPER SKIRT : A 516 Gr. 60N+HICNOZZLE NECK (Ø12"&SMALLER) : A 106 Gr. B LOWER SKIRT : A 283 Gr.CNOZZLE NECK (LARGERØ12") : A 516 Gr.60N+HIC ANCHOR BOLT : -MANHOLE NECK : A 516 Gr.60 N+HIC STRUCTURE PLATFORM : N/AFITTING: A 234 WPB BASE PL. : A 283 Gr.CGASKET : SEE NOTE 1 ATTACHMENT (EXT.)/WELD : A 516 Gr.60N+HIC/A 283 Gr.CINTERNAL PART : SS 316 ATTACHMENT (EXT.)/REMOV :STUD BOLT/ NUT (EXT) : A 193-B7M / A 194-Gr.2HM ATTACHMENT (INT.)/WELD : A 516 Gr.60N+HIC

FABRICATION 21,570 Kg. OPERATING 40,414 Kg.ERECTION 21,570 Kg. HYDROTEST (SHOP) 38,268 Kg.EMPTY 21,570 Kg.

NOTE:

1. GASKET SHALL BE SPIRAL WOOL 316 WITH GRAPHITE FILLED, 316 INNER RING AND CS OUTER RING

2. ENVIRONMENTAL CORROSION ALLOWANCE CARBON STELL = 1.5 mm. As per DEP 31.22.20.31, para 3.6.1.1

1.001.00

DESIGN SPECIFICATION

RADIOGRAPHIC EXAMINATIONRADIOGRAPHIC

FULL

MATERIAL SPECIFICATION

WEIGHT

FULL

JOINT EFFICENCY

V-8601 6

Pressure Summary

Pressure Summary for Chamber bounded by Bottom Head and Top Head

Identifier P

Design ( bar)

T Design ( °C)

MAWP( bar)

MAP( bar)

MAEP( bar)

Te external

( °C)

MDMT( °C)

MDMT Exemption

ImpactTested

Top Head 3.5 150 7.94 15.1 1.76 150 -48 Note 1 No

Straight Flange on Top Head 3.5 150 10.47 17.63 1.37 150 -48 Note 2 No

Shell 3.5 150 9.85 17.63 1.37 150 -48 Note 3 No

Straight Flange on Bottom Head 3.5 150 9.85 17.63 1.37 150 -48 Note 5 No

Bottom Head 3.5 150 7.26 15.1 1.76 150 -48 Note 4 No

Ring N/A N/A N/A N/A 1.03 150 N/A N/A No

Manway (A1) 3.5 150 9.15 13.67 1.37 150 -48 Nozzle Note 6 No

Pad Note 7 No


Pad Note 9 No

Packing Unloading (H1) 3.5 150 7.89 14.67 1.37 150 -48 Nozzle Note 10 No

Pad Note 11 No

Level Gauge (LG) (K1A) 3.5 150 10.02 17.63 1.37 150 -48 Note 12 No

Level Gauge (LG) (K1B) 3.5 150 9.87 17.63 1.37 150 -48 Note 13 No

Level Transmitter(LICA) (K2A) 3.5 150 10 17.63 1.37 150 -48 Note 14 No

Level Transmitter(LICA) (K2B) 3.5 150 9.89 17.63 1.37 150 -48 Note 15 No

Level Transmitter(LZA) (K3A) 3.5 150 10 17.63 1.37 150 -48 Note 14 No

Level Transmitter(LZA) (K3B) 3.5 150 9.89 17.63 1.37 150 -48 Note 15 No







Acid Gas Inlet (N1) 3.5 150 5.69 15.71 1.37 150 -48 Nozzle Note 16 No

Pad Note 17 No

Acid Gas Outlet (N2) 3.5 150 8.86 15.76 1.37 150 -48 Nozzle Note 18 No

Pad Note 19 No

Vent (N3) 3.5 150 7.48 16.78 1.37 150 -48 Note 20 No

Sour Water Outlet (N4) 3.5 150 8.09 16.78 1.37 150 -48 Nozzle Note 21 No

Pad Note 22 No

Drain (N5) 3.5 150 15.02 19.6 1.37 150 -48 Note 23 No

Utility Nozzle/Steam Out (N6) 3.5 150 9.86 17.63 1.37 150 -48 Note 24 No

PSV (N7) 3.5 150 10.32 17.63 1.37 150 -48 Nozzle Note 25 No

Pad Note 26 No

Wash Water Inlet (N8) 3.5 150 10.28 17.63 1.37 150 -48 Note 27 No

V-8601 7

Chamber design MDMT is 15 °C Chamber rated MDMT is -48 °C @ 5.69 bar Chamber MAWP hot & corroded is 5.69 bar @ 150 °C Chamber MAP cold & new is 13.67 bar @ 25 °C Chamber MAEP is 1.03 bar @ 150 °C External pressure rating was governed by the vacuum ring Ring. Notes for MDMT Rating:

Note # Exemption Details

1.

Material impact test exemption temperature from Fig UCS-66M Curve D = -47.94 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 15.7 °C, (coincident ratio = 0.7201) Rated MDMT of -80.64°C is limited to -48°C by UCS-66(b)(2)

UCS-66 governing thickness = 12.75 mm

2.


UCS-66 governing thickness = 15 mm

3.



4.



5.



6. Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.1667).

7.

Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 25.8 °C, (coincident ratio = 0.564) Rated MDMT of -87.93°C is limited to -48°C by UCS-66(b)(2)

UCS-66 governing thickness = 15 mm.


9.

Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 23 °C, (coincident ratio = 0.6016) Rated MDMT of -85.13°C is limited to -48°C by UCS-66(b)(2)



11.



12. Flange rating governs: Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C

UCS-66(b)(3): Coincident ratio = 0.1218







V-8601 8

Notes for MDMT Rating(Cont.)


17.



18.

Nozzle impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 19.9 °C, (coincident ratio = 0.6439) Rated MDMT of -82.03°C is limited to -48°C by UCS-66(b)(2)


19.





21.

Nozzle impact test exemption temperature from Fig UCS-66M Curve B = -20.41 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 15.1 °C, (coincident ratio = 0.7304) Rated MDMT of -52.51°C is limited to -48°C by UCS-66(b)(2)

UCS-66 governing thickness = 13.34 mm.

22.








26.





Design notes are available on the Settings Summary page.

V-8601 9

Thickness Summary

Component Identifier Material Diameter

(mm) Length(mm)

Nominal t(mm)

Design t(mm)

Total Corrosion (mm)

Joint E Load

Top Head SA-516 60 1,990 ID 510.25 12.75* 11.18 6 1.00 External

Straight Flange on Top Head SA-516 60 1,990 ID 38 15 14.11 6 1.00 External

Shell SA-516 60 1,990 ID 6,424 15 14.11 6 1.00 External

Straight Flange on Bottom Head SA-516 60 1,990 ID 38 15 14.11 6 1.00 External

Bottom Head SA-516 60 1,990 ID 510.25 12.75* 11.18 6 1.00 External

Support Skirt 1 SA-516 60 2,020 OD 670 10 4.36 3 0.55 Wind

Support Skirt 2 SA-283 C 2,020 OD 1,500 10 4.68 3 0.55 Wind




Support Skirt 6 SA-516 60 2,020 OD 1,512 10 5.99 3 0.55 Wind

Nominal t: Vessel wall nominal thickness

Design t: Required vessel thickness due to governing loading + corrosion

Joint E: Longitudinal seam joint efficiency

* Head minimum thickness after forming

Load

internal: Circumferential stress due to internal pressure governs

external: External pressure governs

Wind: Combined longitudinal stress of pressure + weight + wind governs

Seismic: Combined longitudinal stress of pressure + weight + seismic governs

V-8601 10

Hydrostatic Test Shop test pressure determination for Chamber bounded by Bottom Head and Top Head based on MAP per UG-99(c) Shop hydrostatic test gauge pressure is 17.52 bar at 25 °C The shop test is performed with the vessel in the horizontal position.

Identifier MAP bar

Test pressure

bar

Test liquidstatic head

bar

UG-99(c)pressure

factor

Stress during test

kgf/cm2

Allowable test stress

kgf/cm2

Stress excessive?

Top Head 15.1 17.74 0.22 1.30 1,270.728 2,028.214 No

Straight Flange on Top Head 17.63 17.74 0.22 1.30 1,209.155 2,028.214 No

Shell 17.63 17.74 0.22 1.30 1,209.155 2,028.214 No

Straight Flange on Bottom Head 17.63 17.74 0.22 1.30 1,209.155 2,028.214 No

Bottom Head 15.1 17.74 0.22 1.30 1,270.728 2,028.214 No

Acid Gas Inlet (N1) 15.71 17.66 0.14 1.30 1,362.749 3,028.555 No

Acid Gas Outlet (N2) 15.76 17.66 0.14 1.30 1,227.682 3,028.555 No

Drain (N5) 19.6 17.64 0.12 1.30 57.678 3,303.878 No

Level Gauge (LG) (K1A) 17.63 17.55 0.03 1.30 1,366.585 3,028.555 No

Level Gauge (LG) (K1B) 17.63 17.55 0.03 1.30 1,366.585 3,028.555 No

Level Transmitter(LICA) (K2A) 17.63 17.6 0.07 1.30 1,296.802 3,028.555 No

Level Transmitter(LICA) (K2B) 17.63 17.6 0.07 1.30 1,296.802 3,028.555 No

Level Transmitter(LZA) (K3A) 17.63 17.58 0.05 1.30 1,295.276 3,028.555 No

Level Transmitter(LZA) (K3B) 17.63 17.58 0.05 1.30 1,295.276 3,028.555 No







Manway (A1) 13.67 17.78 0.25 1.30 1,953.23 3,028.555 No

Manway (A2) (2) 13.67 17.78 0.25 1.30 1,953.23 3,028.555 No

PSV (N7) 17.63 17.74 0.21 1.30 713.246 3,028.555 No

Packing Unloading (H1) 14.67 17.66 0.14 1.30 1,519.794 3,028.555 No

Sour Water Outlet (N4) 16.78 17.65 0.13 1.30 656.048 3,028.555 No

Utility Nozzle/Steam Out (N6) 17.63 17.71 0.19 1.30 1,323.781 3,028.555 No

Vent (N3) 16.78 17.65 0.12 1.30 1,253.869 3,028.555 No

Wash Water Inlet (N8) 17.63 17.65 0.12 1.30 1,319.203 3,028.555 No

Notes: (1) PL stresses at nozzle openings have been estimated using the method described in PVP-Vol. 399, pages 77-82. (2) Manway (A2) is the component that determines the test pressure. (3) 1.5*0.9*Sy used as the basis for the maximum local primary membrane stress at the nozzle intersection PL. (4) The zero degree angular position is assumed to be up, and the test liquid height is assumed to the top-most flange. The test temperature of 25 °C is warmer than the minimum recommended temperature of -0.78 °C so the brittle fracture provision of UG-99(h) has been met. NOTE: Figure UCS 66.2 general note (6) has been applied.

V-8601 11

Corroded Hydrostatic Test Field test pressure determination for Chamber bounded by Bottom Head and Top Head based on MAWP per UG-99(b) Field hydrostatic test gauge pressure is 7.4 bar at 25 °C (the chamber MAWP = 5.69 bar) The field test is performed with the vessel in the vertical position.

Identifier Local test pressure

bar


bar

UG-99(b)stress ratio

UG-99(b)pressure

factor

Stress during test

kgf/cm2


kgf/cm2

Stress excessive?

Top Head (1) 7.49 0.08 1 1.30 1,018.66 2,028.214 No

Straight Flange on Top Head 7.49 0.08 1 1.30 852.711 2,028.214 No

Shell 8.11 0.71 1 1.30 924.416 2,028.214 No

Straight Flange on Bottom Head 8.12 0.72 1 1.30 924.84 2,028.214 No

Bottom Head 8.17 0.77 1 1.30 1,111.542 2,028.214 No

Acid Gas Inlet (N1) 7.97 0.57 1 1.30 741.287 3,028.555 No

Acid Gas Outlet (N2) 7.43 0.03 1 1.30 641.961 3,028.555 No

Drain (N5) 8.19 0.79 1 1.30 51.837 3,303.878 No

Level Gauge (LG) (K1A) 7.94 0.54 1 1.30 1,171.797 3,028.555 No

Level Gauge (LG) (K1B) 8.09 0.69 1 1.30 1,194.211 3,028.555 No

Level Transmitter(LICA) (K2A) 7.96 0.56 1 1.30 1,069.445 3,028.555 No

Level Transmitter(LICA) (K2B) 8.07 0.67 1 1.30 1,083.918 3,028.555 No

Level Transmitter(LZA) (K3A) 7.96 0.56 1 1.30 1,069.445 3,028.555 No

Level Transmitter(LZA) (K3B) 8.07 0.67 1 1.30 1,083.918 3,028.555 No







Manway (A1) 7.68 0.27 1 1.30 1,388.579 3,028.555 No

Manway (A2) 8.08 0.68 1 1.30 1,461.241 3,028.555 No

PSV (N7) 7.64 0.24 1 1.30 325.065 3,028.555 No

Packing Unloading (H1) 7.89 0.49 1 1.30 921.44 3,028.555 No

Sour Water Outlet (N4) 8.21 0.81 1 1.30 344.13 3,028.555 No

Utility Nozzle/Steam Out (N6) 8.11 0.7 1 1.30 1,098.71 3,028.555 No

Vent (N3) 7.44 0.03 1 1.30 1,056.665 3,028.555 No

Wash Water Inlet (N8) 7.68 0.27 1 1.30 1,040.276 3,028.555 No

Notes: (1) Top Head limits the UG-99(b) stress ratio. (2) PL stresses at nozzle openings have been estimated using the method described in PVP-Vol. 399, pages 77-82. (3) 1.5*0.9*Sy used as the basis for the maximum local primary membrane stress at the nozzle intersection PL. The test temperature of 25 °C is warmer than the minimum recommended temperature of -31 °C so the brittle fracture provision of UG-99(h) has been met.

V-8601 12

Wind Code Building Code:

ASCE 7-10

Elevation of base above grade: 0.0000 ft (0.0000 m)

Increase effective outer diameter by: 0.0000 ft (0.0000 m)

Wind Force Coefficient Cf: 0.8000

Risk Category (Table 1.5-1): II

Basic Wind Speed:, V: 89.4775 mph (144.0000 km/h)

Exposure category: C

Wind Directionality Factor, Kd: 1.0000

Top Deflection Limit: 5 mm per m.

Topographic Factor, Kzt: 1.0000

Enforce min. loading of 0.77 kPa: Yes Vessel Characteristics

Vessel height, h: 48.7194 ft (14.8497 m)

Vessel Minimum Diameter, b

Operating, Corroded: 7.0866 ft (2.1600 m)

Empty, Corroded: 7.0866 ft (2.1600 m)

Hydrotest, New, field: 7.0866 ft (2.1600 m)

Hydrotest, Corroded, field: 7.0866 ft (2.1600 m)

Fundamental Frequency, n1

Operating, Corroded: 2.5180 Hz

Empty, Corroded: 4.0279 Hz

Hydrotest, New, field: 3.1342 Hz

Hydrotest, Corroded, field: 2.7039 Hz

Vacuum, Corroded: 2.5180 Hz

Damping coefficient, b

Operating, Corroded: 0.0258

Empty, Corroded: 0.0210

Hydrotest, New, field: 0.0260

Hydrotest, Corroded, field: 0.0260

Vacuum, Corroded: 0.0258 Vortex Shedding Calculations Table Lookup Values 2.4.1 Basic Load Combinations for Allowable Stress Design The following load combinations are considered in accordance with ASCE section 2.4.1: 5. D + P + Ps + 0.6W

7. 0.6D + P + Ps + 0.6W

Where

D = Dead load

P = Internal or external pressure load

Ps = Static head load

W = Wind load

V-8601 13

Wind Deflection Reports: Operating, Corroded Empty, Corroded Vacuum, Corroded Hydrotest, New, field Hydrotest, Corroded, field Operating, Corroded,Vortex Shedding Empty, Corroded, Vortex Shedding Vacuum, Corroded, Vortex Shedding Wind Pressure Calculations Wind Pressures at Critical Speed: Operating, Corroded Wind Pressures at Critical Speed: Empty, Corroded Wind Pressures at Critical Speed: Vacuum, Corroded Wind Deflection Report: Operating, Corroded

Component

Elevation of bottom above

base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)

Total wind shear at Bottom

(kgf)

bending moment at

Bottom (kgf-m)

Deflectionat top (mm)

Top Head 14,301.41 2.16 1,988,447.9 * 0 45 12.8 1.51

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 1,440.8 11,843.4 0.03

*Moment of Inertia I varies over the length of the component

Wind Deflection Report: Empty, Corroded

Component


base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)


(kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,062,603.9 * 0 45 12.8 1.5

Shell 7,877.41 2.16 2,062,603.9 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 2,062,603.9 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,062,603.9 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,062,603.9 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,062,603.9 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,062,603.9 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,062,603.9 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,062,603.9 0.02232 0 1,440.8 11,843.4 0.03


V-8601 14

Wind Deflection Report: Vacuum, Corroded

Component


base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)


(kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 1,988,447.9 * 0 45 12.8 1.51

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 1,440.8 11,843.4 0.03


Wind Deflection Report: Hydrotest, New, field

Component


base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)


(kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,059,828.1 * 0 45 13.8 1.05

Shell 7,877.41 2.16 2,059,828.1 0.04748 0 695.4 3,478.9 1

Bottom Head (top) 7,776 2.16 2,059,828.1 * 0 705.6 3,550 0.41

Support Skirt 1 7,106 2.02 2,059,828.1 0.03189 0 769.1 4,041.9 0.4

Support Skirt 2 5,606 2.02 2,059,828.1 0.03189 0 911.1 5,302 0.34

Support Skirt 3 4,106 2.02 2,059,828.1 0.03189 0 1,053.1 6,775.2 0.23

Support Skirt 4 2,606 2.02 2,059,828.1 0.03189 0 1,195.1 8,461.4 0.13

Support Skirt 5 1,512 2.02 2,059,828.1 0.03189 0 1,298.7 9,825.5 0.06

Support Skirt 6 0 2.02 2,059,828.1 0.03189 0 1,441.9 11,897.4 0.02


V-8601 15

Wind Deflection Report: Hydrotest, Corroded, field

Component


base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)


(kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,059,828.1 * 0 45 12.8 1.5

Shell 7,877.41 2.16 2,059,828.1 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 2,059,828.1 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 1,440.8 11,843.4 0.03


Wind Deflection Report: Operating, Corroded, Vortex Shedding

Component


base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)


(kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 1,988,447.9 * 0 197.4 55.9 3.82

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 2,002.9 9,336.1 3.63

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 2,013.2 9,539.7 1.44

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 2,076.5 10,908 1.41

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 2,218.3 14,129.1 1.2

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 2,360.1 17,563 0.79

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 2,501.9 21,209.5 0.45

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 2,605.4 24,003.2 0.19

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 2,748.3 28,050.6 0.07


V-8601 16

Wind Deflection Report: Empty, Corroded, Vortex Shedding

Component


base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)


(kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,062,603.9 * 0 556.3 154.6 9.49

Shell 7,877.41 2.16 2,062,603.9 0.02875 0 5,223.5 23,842.6 9.01

Bottom Head (top) 7,776 2.16 2,062,603.9 * 0 5,233.7 24,372.9 3.55

Support Skirt 1 7,106 2.02 2,062,603.9 0.02232 0 5,297.1 27,899 3.48

Support Skirt 2 5,606 2.02 2,062,603.9 0.02232 0 5,438.9 35,950.9 2.97

Support Skirt 3 4,106 2.02 2,062,603.9 0.02232 0 5,580.7 44,215.6 1.95

Support Skirt 4 2,606 2.02 2,062,603.9 0.02232 0 5,722.5 52,693 1.1

Support Skirt 5 1,512 2.02 2,062,603.9 0.02232 0 5,825.9 59,010 0.46

Support Skirt 6 0 2.02 2,062,603.9 0.02232 0 5,968.9 67,926.8 0.16


Wind Deflection Report: Vacuum, Corroded, Vortex Shedding

Component


base (mm)

Effective OD (m)

Elastic modulus

E (kg/cm²)

InertiaI (m4)

Platform wind shear

at Bottom

(kgf)


(kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 1,988,447.9 * 0 197.4 55.9 3.82

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 2,002.9 9,336.1 3.63

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 2,013.2 9,539.7 1.44

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 2,076.5 10,908 1.41

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 2,218.3 14,129.1 1.2

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 2,360.1 17,563 0.79

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 2,501.9 21,209.5 0.45

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 2,605.4 24,003.2 0.19

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 2,748.3 28,050.6 0.07


Wind Pressure (WP) Calculations Gust Factor (G¯) Calculations Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kzt * Kd * V2

= 0.613 * Kz * 1.0000 * 1.0000 * 40.00002 = 980.8002 * Kz

WP = 0.6 * qz * G * Cf (Minimum 0.0077 bar) = 0.6 * qz * G * 0.8000 (Minimum 0.0077 bar)

V-8601 17

Design Wind Pressures

Height Z (m) Kz qz

(bar) WP: Operating

(bar) WP: Empty

(bar) WP: Hydrotest New

(bar) WP: Hydrotest Corroded

(bar) WP: Vacuum

(bar)

4.6 0.8489 0.0083 0.0046 0.0046 0.0046 0.0046 0.0046

6.1 0.9019 0.0089 0.0046 0.0046 0.0046 0.0046 0.0046

7.6 0.9453 0.0093 0.0046 0.0046 0.0046 0.0046 0.0046

9.1 0.9823 0.0096 0.0046 0.0046 0.0046 0.0046 0.0046

12.2 1.0436 0.0102 0.0046 0.0046 0.0046 0.0046 0.0046

15.2 1.0938 0.0107 0.0046 0.0046 0.0046 0.0046 0.0046

Design Wind Force determined from: F = Pressure * Af , where Af is the projected area. Vortex Shedding Calculations Vortex shedding calculations are based on NBC 1995 building code, Structural Commentaries (Part 4). Average diameter of vessel (upper third): D = 6.4155 ft (1955.44 mm)

Aspect ratio: Ar = 7.5940

Vortex shedding factor, Operating, Corroded: C1 = 2.0668

Vortex shedding factor, Operating, Corroded: C2 = 0.6000

Vortex shedding factor, Empty, Corroded: C1 = 2.0668

Vortex shedding factor, Empty, Corroded: C2 = 0.6000

Vortex shedding factor, Vacuum, Corroded: C1 = 2.0668

Vortex shedding factor, Vacuum, Corroded: C2 = 0.6000

Weight per foot of vessel, Operating, Corroded, (upper third): M = 3,582.5403 lb/ft (53.3141 kg/cm)

Strouhal number, Operating, Corroded: S = 0.2000

Weight per foot of vessel, Empty, Corroded, (upper third): M = 1,562.0673 lb/ft (23.2461 kg/cm)

Strouhal number, Empty, Corroded: S = 0.2000

Weight per foot of vessel, Vacuum, Corroded, (upper third): M = 3,582.5403 lb/ft (53.3141 kg/cm)

Strouhal number, Vacuum, Corroded: S = 0.2000 Critical wind speed at top of vessel, Vh = (n*D/S)*(3600/5280) mph Operating, Corroded: Vh = (2.5180*6.4155/0.2000)*(3600/5280) = 55.0710 mph (88.6283 km/h)

Empty, Corroded: Vh = (4.0279*6.4155/0.2000)*(3600/5280) = 88.0944 mph (141.7741 km/h)

Vacuum, Corroded: Vh = (2.5180*6.4155/0.2000)*(3600/5280) = 55.0710 mph (88.6283 km/h) Reference wind speed corresponding to critical wind speed, VRef Operating, Corroded: VRef = 52.8584 mph (85.0674 km/h)

Empty, Corroded: VRef = 84.5549 mph (136.0779 km/h)

Vacuum, Corroded: VRef = 52.8584 mph (85.0674 km/h) Corresponding reference wind speed, VRef Operating, Corroded: VRef = 89.4775 mph (144.0000 km/h)

Empty, Corroded: VRef = 89.4775 mph (144.0000 km/h)

Vacuum, Corroded: VRef = 89.4775 mph (144.0000 km/h) Corresponding pressure at top of vessel, qh = 0.00256 * Vh

2 Operating, Corroded: qh = 0.00256 * (55.0710)2 = 7.7640 psf (0 bar)

Empty, Corroded: qh = 0.00256 * (88.0944)2 = 19.8672 psf (0.01 bar)

Vacuum, Corroded: qh = 0.00256 * (55.0710)2 = 7.7640 psf (0 bar)

V-8601 18

Equivalent static loading, FL = qh*C1*D / (SQR(Ar)*SQR(b - (C2*R0*D2/M))) Operating, Corroded: FL = 7.7640*2.0668*6.4155 / (SQR(7.5940)*SQR(0.0258 - (0.6000*0.0765*(6.4155)2/3,582.5403)))

= 235.2119 lb/ft (3.5003 kg/cm)

Empty, Corroded: FL = 19.8672*2.0668*6.4155 / (SQR(7.5940)*SQR(0.0210 - (0.6000*0.0765*(6.4155)2/1,562.0673)))

= 679.5112 lb/ft (10.1122 kg/cm)

Vacuum, Corroded: FL = 7.7640*2.0668*6.4155 / (SQR(7.5940)*SQR(0.0258 - (0.6000*0.0765*(6.4155)2/3,582.5403)))

= 235.2119 lb/ft (3.5003 kg/cm) Static loading FL is applied throughout the top third of the vessel Wind Pressures at Critical Wind Speed: Operating, Corroded (Vh = 24.6190 m/sec) Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kd * Kzt * Vh2 * I

= 0.613 * Kz * 1.0000 * 1.0000 * (24.6190)2 * 1.0000 = 371.5352 * Kz

WP = qz * G¯ * Cf = qz * 0.8891 * 0.8000

Height Z(m) Kz qz(bar) WP(bar)

4.6 0.8489 0.0032 0.0013

6.1 0.9019 0.0034 0.0014

7.6 0.9453 0.0035 0.0015

9.1 0.9823 0.0037 0.0016

12.2 1.0436 0.0039 0.0017

15.2 1.0938 0.0041 0.0017

Wind Pressures at Critical Wind Speed: Empty, Corroded (Vh = 39.3817 m/sec) Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kd * Kzt * Vh2 * I

= 0.613 * Kz * 1.0000 * 1.0000 * (39.3817)2 * 1.0000 = 950.7130 * Kz

WP = qz * G¯ * Cf = qz * 0.8891 * 0.8000


4.6 0.8489 0.0081 0.0034

6.1 0.9019 0.0086 0.0037

7.6 0.9453 0.0090 0.0038

9.1 0.9823 0.0093 0.0040

12.2 1.0436 0.0099 0.0042

15.2 1.0938 0.0104 0.0044

V-8601 19

Wind Pressures at Critical Wind Speed: Vacuum, Corroded (Vh = 24.6190 m/sec) Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kd * Kzt * Vh2* I

= 0.613 * Kz * 1.0000 * 1.0000 * (24.6190)2 * 1.0000 = 371.5352 * Kz

WP = qz * G¯ * Cf

= qz * 0.8891 * 0.8000


4.6 0.8489 0.0032 0.0013

6.1 0.9019 0.0034 0.0014

7.6 0.9453 0.0035 0.0015

9.1 0.9823 0.0037 0.0016

12.2 1.0436 0.0039 0.0017

15.2 1.0938 0.0041 0.0017

Gust Factor Calculations Operating, Corroded Empty, Corroded Vacuum, Corroded Hydrotest, New, field Hydrotest, Corroded, field Operating, Corroded, Vortex Shedding Empty, Corroded, Vortex Shedding Vacuum, Corroded, Vortex Shedding Gust Factor Calculations: Operating, Corroded Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Empty, Corroded Vessel is considered a rigid structure as n1 = 4.0279 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

V-8601 20

Lz¯

= l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Vacuum, Corroded Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Hydrotest, New, field Vessel is considered a rigid structure as n1 = 3.1342 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Hydrotest, Corroded, field Vessel is considered a rigid structure as n1 = 2.7039 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

V-8601 21

Lz¯

= l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Operating, Corroded, Vortex Shedding Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Empty, Corroded, Vortex Shedding Vessel is considered a rigid structure as n1 = 4.0279 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

V-8601 22

Gust Factor Calculations: Vacuum, Corroded, Vortex Shedding Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Table Lookup Values α = 9.5000, zg = 274.3200 m [Table 26.9-1, page 256] c = 0.2000, l = 500.0000, ep = 0.2000 [Table 26.9-1, page 256] a¯ = 0.1538, b¯ = 0.6500 [Table 26.9-1, page 256] zmin = 15.0000 ft [Table 26.9-1, page 256] gQ = 3.40 [26.9.4 page 254] gv = 3.40 [26.9.4 page 254]

V-8601 23

Liquid Level bounded by Top Head Location from datum

7,308 mm

Operating Liquid Specific Gravity 0.987

V-8601 24

Shell ASME Section VIII Division 1, 2010 Edition Metric Component: CylinderMaterial specification: SA-516 60 (II-D Metric p. 10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 22.7 °C, (coincident ratio = 0.605) Rated MDMT of -84.83°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 15 mm Internal design pressure: P = 3.5 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps = 0.7 bar (SG = 0.987, Hs = 7,270 mm,Operating head)Pth = 0.22 bar (SG = 1, Hs = 2,250 mm, Horizontal test head)Ptv = 0.71 bar (SG = 1, Hs = 7,270 mm, Vertical test head)Corrosion allowance Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15 °C No impact test performedRated MDMT = -48 °C Material is normalized

Material is not produced to Fine Grain PracticePWHT is performed

Radiography: Longitudinal joint - Full UW-11(a) Type 1Top circumferential joint - Full UW-11(a) Type 1Bottom circumferential joint - Full UW-11(a) Type 1

Estimated weight New = 4,662.3 kg corr = 2,806.1 kg Capacity New = 19,980.28 liters corr = 20,221.96 litersID = 1,990 mmLength Lc = 6,424 mmt = 15 mm Insulation thk: 70 mm density: 1,000 kg/m3 Weight: 2,952.6 kg

Insulation Support Spacing: 400 mm Individual Support Weight: 40 kg Total Support

Weight: 640 kg

Design thickness, (at 150 °C) UG-27(c)(1) t = P*R / (S*E - 0.60*P) + Corrosion

= 4.2*1,001 / (1,180*1.00 - 0.60*4.2) + 6 = 9.57 mm

Maximum allowable working pressure, (at 150 °C) UG-27(c)(1) P = S*E*t / (R + 0.60*t) - Ps

= 1,180*1.00*9 / (1,001 + 0.60*9) - 0.7= 9.85 bar

Maximum allowable pressure, (at 25 °C) UG-27(c)(1) P = S*E*t / (R + 0.60*t)

= 1,180*1.00*15 / (995 + 0.60*15)= 17.63 bar

External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 3,417.83 / 2,020 = 1.6920 Do / t = 2,020 / 8.11 = 249.0293From table G: A = 0.000195 From table CS-2 Metric: B = 196.9709 kg/cm2 (193.16 bar)Pa = 4*B / (3*(Do / t))

= 4*193.16 / (3*(2,020 / 8.11)) = 1.03 bar

Design thickness for external pressure Pa = 1.03 bar ta = t + Corrosion = 8.11 + 6 = 14.11 mm

V-8601 25

Maximum Allowable External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 3,417.83 / 2,020 = 1.6920 Do / t = 2,020 / 9 = 224.4315From table G: A = 0.000233 From table CS-2 Metric: B = 235.0941 kg/cm2 (230.548 bar)Pa = 4*B / (3*(Do / t))

= 4*230.55 / (3*(2,020 / 9))= 1.37 bar

% Extreme fiber elongation - UCS-79(d) EFE = (50*t / Rf)*(1 - Rf / Ro)

= (50*15 / 1,002.5)*(1 - 1,002.5 / ∞) = 0.7481%

The extreme fiber elongation does not exceed 5%. External Pressure + Weight + Wind Loading Check (Bergman, ASME paper 54-A-104) Pv = W / (2*π*Rm) + M / (π*Rm

2)= 10*13,332.7 / (2*π*1,005.5) + 10000*3,428.8 / (π*1,005.52)= 31.8985 kg/cm

α = Pv / (Pe*Do) = 9.803*31.8985 / (1.03*2,020)= 0.1497

n = 4

m = 1.23 / (L / Do)2 = 1.23 / (3,417.83 / 2,020)2 = 0.4296

Ratio Pe = (n2 - 1 + m + m*α) / (n2 - 1 + m) = (42 - 1 + 0.4296 + 0.4296*0.1497) / (42 - 1 + 0.4296)= 1.0042

Ratio Pe * Pe ≤ MAEP design cylinder thickness is satisfactory. Design thickness = 14.11 mm The governing condition is due to external pressure. The cylinder thickness of 15 mm is adequate.

V-8601 26

Thickness Required Due to Pressure + External Loads

Condition Pressure P ( bar)

Allowable Stress Before UG-23 Stress Increase (

kg/cm2) Temperature (

°C) Corrosion

C (mm) Load Req'd Thk

Due to Tension (mm)

Req'd Thk Due to Compression (mm)

St Sc

Operating, Hot & Corroded

3.5 1,203.3 891.3 150 6 Wind 1.22 1.02

Operating, Hot & New 3.5 1,203.3 1,028.6 150 0 Wind 1.2 0.98

Hot Shut Down, Corroded

0 1,203.3 891.3 150 6 Wind 0.02 0.3

Hot Shut Down, New 0 1,203.3 1,028.6 150 0 Wind 0.03 0.29

Empty, Corroded 0 1,203.3 891.3 21.11 6 Wind 0.02 0.3

Empty, New 0 1,203.3 1,028.6 21.11 0 Wind 0.03 0.29

Vacuum -1.03 1,203.3 891.3 150 6 Wind 0.51 0.79

Hot Shut Down, Corroded, Weight & Eccentric Moments Only

0 1,203.3 891.3 150 6 Weight 0.2 0.27

Operating, Hot & Corroded, Vortex Shedding

3.5 1,203.3 891.3 150 6 Wind 1.35 0.89

Empty, Cold & Corroded, Vortex Shedding

0 1,203.3 891.3 21.11 6 Wind 0.43 0.9

Vacuum, Vortex Shedding

-1.03 1,203.3 891.3 150 6 Wind 0.34 0.97

Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScHC = min(B, S) = 891.3 kg/cm2 Allowable Compressive Stress, Hot and New- ScHN, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScHN = min(B, S) = 1,028.6 kg/cm2 Allowable Compressive Stress, Cold and New- ScCN, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScCN = min(B, S) = 1,028.6 kg/cm2

V-8601 27

Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScCC = min(B, S) = 891.3 kg/cm2 Allowable Compressive Stress, Vacuum and Corroded- ScVC, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScVC = min(B, S) = 891.3 kg/cm2 Operating, Hot & Corroded, Wind, Bottom Seam tp = P*R / (2*St*Ks*Ec + 0.40*|P|) (Pressure)

= 3.5*1,001 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.24 mm

tm = M / (π*Rm2*St*Ks*Ec) * MetricFactor (bending)

= 3,428.8 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.07 mm

tw = 0.6*W / (2*π*Rm*St*Ks*Ec) * MetricFactor (Weight)= 0.60*13,332.7 / (2*π*1,005.5*1,180*1.20*1.00) * 98.0665= 0.09 mm

tt = tp + tm - tw (total required, tensile)= 1.24 + 0.07 - (0.09) = 1.22 mm

twc = W / (2*π*Rm*St*Ks*Ec) * MetricFactor (Weight)= 13,332.7 / (2*π*1,005.5*1,180*1.20*1.00) * 98.0665 = 0.15 mm

tc = |tmc + twc - tpc| (total, net tensile)= |0.07 + (0.15) - (1.24)| = 1.02 mm

Maximum allowable working pressure, Longitudinal Stress P = 2*St*Ks*Ec*(t - tm + tw) / (R - 0.40*(t - tm + tw))

= 2*1,180*1.20*1.00*(9 - 0.07 + (0.09)) / (1,001 - 0.40*(9 - 0.07 + (0.09)))= 25.59 bar

Operating, Hot & New, Wind, Bottom Seam tp = P*R / (2*St*Ks*Ec + 0.40*|P|) (Pressure)

= 3.5*995 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.23 mm


= 3,478.9 / (π*1,002.52*1,180*1.20*1.00) * 98066.5 = 0.08 mm


V-8601 28





= 2*1,180*1.20*1.00*(15 - 0.08 + (0.1)) / (995 - 0.40*(15 - 0.08 + (0.1)))= 43.03 bar

Hot Shut Down, Corroded, Wind, Bottom Seam tp = 0 mm (Pressure)tm = M / (π*Rm

2*Sc*Ks) * MetricFactor (bending)= 3,428.8 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.1 mm

tw = 0.6*W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 0.60*13,332.7 / (2*π*1,005.5*874.05*1.20) * 98.0665 = 0.12 mm

tt = |tp + tm - tw| (total, net compressive)= |0 + 0.1 - (0.12)| = 0.02 mm

twc = W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 13,332.7 / (2*π*1,005.5*874.05*1.20) * 98.0665 = 0.2 mm

tc = tmc + twc - tpc (total required, compressive)= 0.1 + (0.2) - (0) = 0.3 mm

Hot Shut Down, New, Wind, Bottom Seam tp = 0 mm (Pressure)tm = M / (π*Rm

2*Sc*Ks) * MetricFactor (bending)= 3,478.9 / (π*1,002.52*1,008.7*1.20) * 98066.5 = 0.09 mm

tw = 0.6*W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 0.60*15,501.1 / (2*π*1,002.5*1,008.7*1.20) * 98.0665= 0.12 mm


twc = W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 15,501.1 / (2*π*1,002.5*1,008.7*1.20) * 98.0665 = 0.2 mm


V-8601 29

Empty, Corroded, Wind, Bottom Seam tp = 0 mm (Pressure)tm = M / (π*Rm






Empty, New, Wind, Bottom Seam tp = 0 mm (Pressure)tm = M / (π*Rm






Vacuum, Wind, Bottom Seam tp = P*R / (2*Sc*Ks + 0.40*|P|) (Pressure)

= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm

tm = M / (π*Rm2*Sc*Ks) * MetricFactor (bending)

= 3,428.8 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.1 mm


tt = |tp + tm - tw| (total, net compressive)= |-0.49 + 0.1 - (0.12)| = 0.51 mm

V-8601 30


tc = tmc + twc - tpc (total required, compressive)= 0.1 + (0.2) - (-0.49) = 0.79 mm

Maximum Allowable External Pressure, Longitudinal Stress P = 2*Sc*Ks*(t - tmc - twc) / (R - 0.40*(t - tmc - twc))

= 2*874.05*1.20*(9 - 0.1 - 0.2) / (1,001 - 0.40*(9 - 0.1 - 0.2))= 18.3 bar

Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Bottom Seam tp = 0 mm (Pressure)tm = M / (π*Rm


tw = W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 13,332.7 / (2*π*1,005.5*874.05*1.00) * 98.0665 = 0.24 mm



Operating, Hot & Corroded, Vortex Shedding, Wind, Bottom Seam tp = P*R / (2*St*Ks*Ec + 0.40*|P|) (Pressure)

= 3.5*1,001 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.24 mm


= 9,336.1 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.2 mm





V-8601 31


= 2*1,180*1.20*1.00*(9 - 0.2 + (0.09)) / (1,001 - 0.40*(9 - 0.2 + (0.09)))= 25.23 bar

Empty, Cold & Corroded, Vortex Shedding, Wind, Bottom Seam tp = 0 mm (Pressure)tm = M / (π*Rm

2*St*Ks*Ec) * MetricFactor (bending)= 23,842.6 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.52 mm


tt = tp + tm - tw (total required, tensile)= 0 + 0.52 - (0.09) = 0.43 mm

tmc = M / (π*Rm2*Sc*Ks) * MetricFactor (bending)

= 23,842.6 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.7 mm



Vacuum, Vortex Shedding, Wind, Bottom Seam tp = P*R / (2*Sc*Ks + 0.40*|P|) (Pressure)

= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 9,336.1 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.27 mm






= 2*874.05*1.20*(9 - 0.27 - 0.2) / (1,001 - 0.40*(9 - 0.27 - 0.2))= 17.93 bar

V-8601 32

Top Head ASME Section VIII, Division 1, 2010 Edition Metric Component: Ellipsoidal Head Material Specification: SA-516 60 (II-D Metric p.10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -47.94 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 15.7 °C, (coincident ratio = 0.7201) Rated MDMT of -80.64°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 12.75 mm Internal design pressure: P = 3.5 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps= 0.08 bar (SG=0.987, Hs=808 mm Operating head) Pth= 0.22 bar (SG=1, Hs=2250 mm Horizontal test head) Ptv= 0.08 bar (SG=1, Hs=808 mm Vertical test head) Corrosion allowance: Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15°C No impact test performed Rated MDMT = -48°C Material is normalized

Material is not produced to fine grain practice PWHT is performed Do not Optimize MDMT / Find MAWP

Radiography: Category A joints - Full UW-11(a) Type 1

Head to shell seam - Full UW-11(a) Type 1 Estimated weight*: new = 482.8 kg corr = 259.5 kg Capacity*: new = 1,149.8 liters corr = 1,176.3 liters* includes straight flange Inner diameter = 1990 mm Minimum head thickness = 12.75 mm Head ratio D/2h = 2 (new) Head ratio D/2h = 1.9881 (corroded)Straight flange length Lsf = 38 mm Nominal straight flange thickness tsf = 15 mm Insulation thk*: 70 mm density: 999.9998 kg/m3 weight: 343.7283 kg Insulation support ring spacing: 400 mm individual weight: 40 kg total weight: 40 kg * includes straight flange if applicable Results Summary The governing condition is external pressure. Minimum thickness per UG-16 = 1.5 mm + 6 mm = 7.5 mmDesign thickness due to internal pressure (t) = 9.01 mmDesign thickness due to external pressure (te) = 11.18 mmMaximum allowable working pressure (MAWP) = 7.94 barMaximum allowable pressure (MAP) = 15.1 barMaximum allowable external pressure (MAEP) = 1.76 bar K (Corroded) K

= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (2,002 / (2*503.5))2] = 0.99208

K (New) K

= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (1,990 / (2*497.5))2] = 1

Design thickness for internal pressure, (Corroded at 150 °C) Appendix 1-4(c) t = P*D*K / (2*S*E - 0.2*P) + Corrosion

= 3.58*2,002*0.99208 / (2*1,180*1 - 0.2*3.58) + 6= 9.01 mm

The head internal pressure design thickness is 9.01 mm.

V-8601 33

Maximum allowable working pressure, (Corroded at 150 °C) Appendix 1-4(c) P = 2*S*E*t / (K*D + 0.2*t) - Ps

= 2*1,180*1*6.75 / (0.99208*2,002 +0.2*6.75) - 0.08= 7.94 bar

The maximum allowable working pressure (MAWP) is 7.94 bar. Maximum allowable pressure, (New at 25 °C) Appendix 1-4(c) P = 2*S*E*t / (K*D + 0.2*t) - Ps

= 2*1,180*1*12.75 / (1*1,990 +0.2*12.75) - 0 = 15.1 bar

The maximum allowable pressure (MAP) is 15.1 bar. Design thickness for external pressure, (Corroded at 150 °C) UG-33(d) Equivalent outside spherical radius (Ro) Ro = Ko*Do

= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 5.18) = 0.000361

From Table CS-2 Metric: B = 365.036 kgf/cm2 Pa = B / (Ro / t)

= 357.9783 / (1,791.29 / 5.18) = 1.0342 bar

t = 5.18 mm + Corrosion = 5.18 mm + 6 mm = 11.17 mmCheck the external pressure per UG-33(a)(1) Appendix 1-4(c) t = 1.67*Pe*D*K / (2*S*E - 0.2*1.67*Pe) + Corrosion

= 1.67*1.03*2,002*0.99208 / (2*1,180*1 - 0.2*1.67*1.03) + 6= 7.45 mm

The head external pressure design thickness (te) is 11.17 mm. Maximum Allowable External Pressure, (Corroded at 150 °C) UG-33(d) Equivalent outside spherical radius (Ro) Ro = Ko*Do

= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 6.75) = 0.000471


= 467.5401 / (1,791.29 / 6.75) = 1.7619 bar

Check the Maximum External Pressure, UG-33(a)(1) Appendix 1-4(c) P = 2*S*E*t / ((K*D + 0.2*t)*1.67) - Ps2

= 2*1,180*1*6.75 / ((0.99208*2,002 +0.2*6.75)*1.67) - 0= 4.8 bar

The maximum allowable external pressure (MAEP) is 1.76 bar. % Extreme fiber elongation - UCS-79(d) EFE = (75*t / Rf)*(1 - Rf / Ro)

= (75*15 / 345.8)*(1 - 345.8 / ?) = 3.2533%

The extreme fiber elongation does not exceed 5%.

V-8601 34

Straight Flange on Top Head ASME Section VIII Division 1, 2010 Edition Metric Component: Straight FlangeMaterial specification: SA-516 60 (II-D Metric p. 10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 27.3 °C, (coincident ratio = 0.5461) Rated MDMT of -89.43°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 15 mm Internal design pressure: P = 3.5 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps = 0.08 bar (SG = 0.987, Hs = 846 mm,Operating head)Pth = 0.22 bar (SG = 1, Hs = 2,250 mm, Horizontal test head)Ptv = 0.08 bar (SG = 1, Hs = 846 mm, Vertical test head)Corrosion allowance Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15 °C No impact test performedRated MDMT = -48 °C Material is normalized


Radiography: Longitudinal joint - Full UW-11(a) Type 1Circumferential joint - Full UW-11(a) Type 1

Estimated weight New = 28.1 kg corr = 16.9 kg Capacity New = 118.19 liters corr = 119.62 liters ID = 1,990 mmLength Lc = 38 mm t = 15 mm Insulation thk: 70 mm density: 1,000 kg/m3 Weight: 0 kg Design thickness, (at 150 °C) UG-27(c)(1) t = P*R / (S*E - 0.60*P) + Corrosion

= 3.58*1,001 / (1,180*1.00 - 0.60*3.58) + 6 = 9.04 mm


= 1,180*1.00*9 / (1,001 + 0.60*9) - 0.08 = 10.47 bar


= 1,180*1.00*15 / (995 + 0.60*15)= 17.63 bar


= 4*193.16 / (3*(2,020 / 8.11)) = 1.03 bar

Design thickness for external pressure Pa = 1.03 bar ta = t + Corrosion = 8.11 + 6 = 14.11 mm Maximum Allowable External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 3,417.83 / 2,020 = 1.6920 Do / t = 2,020 / 9 = 224.4315From table G: A = 0.000233 From table CS-2 Metric: B = 235.0941 kg/cm2 (230.548 bar)Pa = 4*B / (3*(Do / t))

= 4*230.55 / (3*(2,020 / 9))= 1.37 bar

V-8601 35


= (50*15 / 1,002.5)*(1 - 1,002.5 / ∞) = 0.7481%

The extreme fiber elongation does not exceed 5%. Design thickness = 14.11 mm The governing condition is due to external pressure. The cylinder thickness of 15 mm is adequate. Thickness Required Due to Pressure + External Loads




°C) Corrosion


Due to Tension (mm)


St Sc


3.5 1,203.3 891.3 150 6 Wind 1.23 1.23



0 1,203.3 891.3 150 6 Wind 0.01 0.01



Empty, New 0 1,203.3 1,028.6 21.11 0 Wind 0.01 0.01

Vacuum -1.03 1,203.3 891.3 150 6 Wind 0.5 0.5


0 1,203.3 891.3 150 6 Weight 0.01 0.01


3.5 1,203.3 891.3 150 6 Wind 1.23 1.23


0 1,203.3 891.3 21.11 6 Wind 0 0.01


-1.03 1,203.3 891.3 150 6 Wind 0.5 0.5


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScHN = min(B, S) = 1,028.6 kg/cm2

V-8601 36

Allowable Compressive Stress, Cold and New- ScCN, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScCN = min(B, S) = 1,028.6 kg/cm2 Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 3.5*1,001 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.24 mm


= 12.8 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0 mm

tw = 0.6*W / (2*π*Rm*St*Ks*Ec) * MetricFactor (Weight)= 0.60*667.9 / (2*π*1,005.5*1,180*1.20*1.00) * 98.0665= 0 mm

tt = tp + tm - tw (total required, tensile)= 1.24 + 0 - (0) = 1.23 mm

twc = W / (2*π*Rm*St*Ks*Ec) * MetricFactor (Weight)= 667.9 / (2*π*1,005.5*1,180*1.20*1.00) * 98.0665 = 0.01 mm

tc = |tmc + twc - tpc| (total, net tensile)= |0 + (0.01) - (1.24)| = 1.23 mm


= 2*1,180*1.20*1.00*(9 - 0 + (0)) / (1,001 - 0.40*(9 - 0 + (0)))= 25.57 bar

V-8601 37


= 3.5*995 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.23 mm


= 13.8 / (π*1,002.52*1,180*1.20*1.00) * 98066.5 = 0 mm

tw = 0.6*W / (2*π*Rm*St*Ks*Ec) * MetricFactor (Weight)= 0.60*902.5 / (2*π*1,002.5*1,180*1.20*1.00) * 98.0665= 0.01 mm

tt = tp + tm - tw (total required, tensile)= 1.23 + 0 - (0.01) = 1.22 mm




= 2*1,180*1.20*1.00*(15 - 0 + (0.01)) / (995 - 0.40*(15 - 0 + (0.01)))= 42.97 bar


2*Sc*Ks) * MetricFactor (bending)= 12.8 / (π*1,005.52*874.05*1.20) * 98066.5 = 0 mm

tw = 0.6*W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 0.60*667.9 / (2*π*1,005.5*874.05*1.20) * 98.0665 = 0.01 mm

tt = |tp + tm - tw| (total, net compressive)= |0 + 0 - (0.01)| = 0.01 mm

twc = W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 667.9 / (2*π*1,005.5*874.05*1.20) * 98.0665 = 0.01 mm

tc = tmc + twc - tpc (total required, compressive)= 0 + (0.01) - (0) = 0.01 mm


2*Sc*Ks) * MetricFactor (bending)= 13.8 / (π*1,002.52*1,008.7*1.20) * 98066.5 = 0 mm

tw = 0.6*W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 0.60*902.5 / (2*π*1,002.5*1,008.7*1.20) * 98.0665 = 0.01 mm


V-8601 38

twc = W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 902.5 / (2*π*1,002.5*1,008.7*1.20) * 98.0665 = 0.01 mm















= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 12.8 / (π*1,005.52*874.05*1.20) * 98066.5 = 0 mm

V-8601 39


tt = |tp + tm - tw| (total, net compressive)= |-0.49 + 0 - (0.01)| = 0.5 mm


tc = tmc + twc - tpc (total required, compressive)= 0 + (0.01) - (-0.49) = 0.5 mm


= 2*874.05*1.20*(9 - 0 - 0.01) / (1,001 - 0.40*(9 - 0 - 0.01))= 18.91 bar



tw = W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 667.9 / (2*π*1,005.5*874.05*1.00) * 98.0665 = 0.01 mm




= 3.5*1,001 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.24 mm


= 55.9 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0 mm




V-8601 40



= 2*1,180*1.20*1.00*(9 - 0 + (0)) / (1,001 - 0.40*(9 - 0 + (0)))= 25.56 bar




tt = |tp + tm - tw| (total, net compressive)= |0 + 0 - (0.01)| = 0 mm




= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 55.9 / (π*1,005.52*874.05*1.20) * 98066.5 = 0 mm






= 2*874.05*1.20*(9 - 0 - 0.01) / (1,001 - 0.40*(9 - 0 - 0.01))= 18.91 bar

V-8601 41

Bottom Head ASME Section VIII, Division 1, 2010 Edition Metric Component: Ellipsoidal Head Material Specification: SA-516 60 (II-D Metric p.10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -47.94 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 10.9 °C, (coincident ratio = 0.8046) Rated MDMT of -75.84°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 12.75 mm Internal design pressure: P = 3.5 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps= 0.76 bar (SG=0.987, Hs=7811.5 mm Operating head) Pth= 0.22 bar (SG=1, Hs=2250 mm Horizontal test head) Ptv= 0.76 bar (SG=1, Hs=7805.5 mm Vertical test head) Corrosion allowance: Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15°C No impact test performed Rated MDMT = -48°C Material is normalized




= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (2,002 / (2*503.5))2] = 0.99208

K (New) K

= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (1,990 / (2*497.5))2] = 1


= 4.26*2,002*0.99208 / (2*1,180*1 - 0.2*4.26) + 6= 9.58 mm


V-8601 42


= 2*1,180*1*6.75 / (0.99208*2,002 +0.2*6.75) - 0.76= 7.26 bar


= 2*1,180*1*12.75 / (1*1,990 +0.2*12.75) - 0 = 15.1 bar


= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 5.18) = 0.000361


= 357.9783 / (1,791.29 / 5.18) = 1.0342 bar


= 1.67*1.03*2,002*0.99208 / (2*1,180*1 - 0.2*1.67*1.03) + 6= 7.45 mm


= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 6.75) = 0.000471


= 467.5401 / (1,791.29 / 6.75) = 1.7619 bar


= 2*1,180*1*6.75 / ((0.99208*2,002 +0.2*6.75)*1.67) - 0= 4.8 bar


= (75*15 / 345.8)*(1 - 345.8 / ?) = 3.2533%


V-8601 43

Straight Flange on Bottom Head ASME Section VIII Division 1, 2010 Edition Metric Component: Straight FlangeMaterial specification: SA-516 60 (II-D Metric p. 10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 22.7 °C, (coincident ratio = 0.6053) Rated MDMT of -84.83°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 15 mm Internal design pressure: P = 3.5 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps = 0.71 bar (SG = 0.987, Hs = 7,308 mm,Operating head)Pth = 0.22 bar (SG = 1, Hs = 2,250 mm, Horizontal test head)Ptv = 0.72 bar (SG = 1, Hs = 7,308 mm, Vertical test head)Corrosion allowance Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15 °C No impact test performedRated MDMT = -48 °C Material is normalized




= 4.21*1,001 / (1,180*1.00 - 0.60*4.21) + 6 = 9.58 mm


= 1,180*1.00*9 / (1,001 + 0.60*9) - 0.71 = 9.85 bar


= 1,180*1.00*15 / (995 + 0.60*15)= 17.63 bar


= 4*193.16 / (3*(2,020 / 8.11)) = 1.03 bar


= 4*230.55 / (3*(2,020 / 9))= 1.37 bar


= (50*15 / 1,002.5)*(1 - 1,002.5 / ∞) = 0.7481%


V-8601 44

Design thickness = 14.11 mm The governing condition is due to external pressure. The cylinder thickness of 15 mm is adequate. Thickness Required Due to Pressure + External Loads




°C) Corrosion


Due to Tension (mm)


St Sc


3.5 1,203.3 891.3 150 6 Wind 1.22 1.01



0 1,203.3 891.3 150 6 Wind 0.02 0.3



Empty, New 0 1,203.3 1,028.6 21.11 0 Wind 0.03 0.29

Vacuum -1.03 1,203.3 891.3 150 6 Wind 0.51 0.79


0 1,203.3 891.3 150 6 Weight 0.2 0.27


3.5 1,203.3 891.3 150 6 Wind 1.35 0.88


0 1,203.3 891.3 21.11 6 Wind 0.44 0.91


-1.03 1,203.3 891.3 150 6 Wind 0.33 0.97


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScHN = min(B, S) = 1,028.6 kg/cm2

V-8601 45

Allowable Compressive Stress, Cold and New- ScCN, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 3.5*1,001 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.24 mm


= 3,457.4 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.08 mm






= 2*1,180*1.20*1.00*(9 - 0.08 + (0.09)) / (1,001 - 0.40*(9 - 0.08 + (0.09)))= 25.59 bar

V-8601 46


= 3.5*995 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.23 mm


= 3,507.6 / (π*1,002.52*1,180*1.20*1.00) * 98066.5 = 0.08 mm






= 2*1,180*1.20*1.00*(15 - 0.08 + (0.1)) / (995 - 0.40*(15 - 0.08 + (0.1)))= 43.03 bar










V-8601 47

















= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 3,457.4 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.1 mm

V-8601 48






= 2*874.05*1.20*(9 - 0.1 - 0.2) / (1,001 - 0.40*(9 - 0.1 - 0.2))= 18.3 bar







= 3.5*1,001 / (2*1,180*1.20*1.00 + 0.40*|3.5|) = 1.24 mm


= 9,418.5 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.21 mm




V-8601 49



= 2*1,180*1.20*1.00*(9 - 0.21 + (0.09)) / (1,001 - 0.40*(9 - 0.21 + (0.09)))= 25.22 bar






= 24,057.5 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.71 mm




= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 9,418.5 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.28 mm





V-8601 50


= 2*874.05*1.20*(9 - 0.28 - 0.2) / (1,001 - 0.40*(9 - 0.28 - 0.2))= 17.93 bar

V-8601 51

Steam Out Conditions

V-8601 52

DESIGN CODE : ASME SEC. VIII DIV.1 2010 EDITIONPROCESS FLUID(GAS/LIQUID) : SOUR GAS/WATERDENSITY OF LIQUID (OPER./DESIGN) : 987.03/1000 Kg/m3

DESIGN FILLING : 100%DESIGN PRESSURE (INTERNAL/EXTERNAL) 2.6/FV. bar(g) AT 150 OCOPERATING PRESSURE (Max./Normal/Min.) -/0.8/- bar(g) AT -/50/- OCHYDROTEST PRESSURE (AT SHOP) 17.52 bar(g)CORRODED HYDROTEST PRESSURE (AT SITE) 7.4 bar(g)MAXIMUM ALLOWABLE WORKING PRESSURE 5.7 bar(g) AT 150 OCMAXIMUM ALLOWABLE EXTERNAL WORKING PRESSURE 1.03 bar(g) AT 150 OCMINIMUM DESIGN METAL TEMPERATURE 15 OC AT 5.7 bar(g)CORROSION ALLOWANCE (INTERNAL/EXTERNAL) 6/0 mmVESSEL TYPE : VERTICAL TYPE OF HEAD : ED 2:1TYPE OF SUPPORT : SKIRT SUPPORT SEISMIC LOAD : UBC ZONE 0IMPACT TEST : NO DESIGN WIND SPEED : 40 m/s HARDNESS TEST : NO POSTWELD HEAT TREATMENT : YESINSULATION : H-70 FIRE PROOFING COATING : N/A

COMPONENTSHELL HEAD

SHELL,HEAD,REINFORCING PADS : A516 Gr 60N+HIC BOLT/NUT (INT) : SS 316FLANGE : A 105 N UPPER SKIRT : A 516 Gr. 60N+HICNOZZLE NECK (Ø12"&SMALLER) : A 106 Gr. B LOWER SKIRT: A 283 Gr.CNOZZLE NECK (LARGERØ12") : A 516 Gr.60N+HIC ANCHOR BOLT : -MANHOLE NECK : A 516 Gr.60N+HIC STRUCTURE PLATFORM : N/AFITTING: A 234 WPB BASE PL. : A 283 Gr.CGASKET : SEE NOTE 1 ATTACHMENT (EXT.)/WELD : A 516 Gr.60N+HIC/A 283 Gr.CINTERNAL PART : SS 316 ATTACHMENT (EXT.)/REMOV : -STUD BOLT/ NUT (EXT) : A 193-B7M / A 194-Gr.2HM ATTACHMENT (INT.)/WELD : A 516 Gr.60N+HIC

FABRICATION 21,570 Kg. OPERATING 40,414 Kg.ERECTION 21,570 Kg. HYDROTEST (SHOP) 38,268 Kg.EMPTY 21,570 Kg.

NOTE:

1. GASKET SHALL BE SPIRAL WOO 316 WITH GRAPHITE FILLED, 316 INNER RING AND CS OUTER RING

2. ENVIRONMENTAL CORROSION ALLOWANCE CARBON STELL = 1.5 mm. As per DEP 31.22.20.31, para 3.6.1.1

JOINT EFFICENCY1.001.00

DESIGN SPECIFICATION

RADIOGRAPHIC EXAMINATIONRADIOGRAPHIC

FULL

MATERIAL SPECIFICATION

WEIGHT

FULL

V-8601 53

Pressure Summary

Pressure Summary for Chamber bounded by Bottom Head and Top Head

Identifier P

Design ( bar)

T Design ( °C)

MAWP( bar)

MAP( bar)

MAEP( bar)

Te

external( °C)

MDMT( °C)

MDMT Exemption

Impact Tested

Top Head 2.6 150 7.94 15.1 1.76 150 -48 Note 1 No

Straight Flange on Top Head 2.6 150 10.47 17.63 1.37 150 -48 Note 2 No

Shell 2.6 150 9.85 17.63 1.37 150 -48 Note 3 No

Straight Flange on Bottom Head 2.6 150 9.85 17.63 1.37 150 -48 Note 5 No

Bottom Head 2.6 150 7.26 15.1 1.76 150 -48 Note 4 No

Ring N/A N/A N/A N/A 1.03 150 N/A N/A No


Pad Note 7 No


Pad Note 9 No

Packing Unloading (H1) 2.6 150 7.88 14.67 1.37 150 -48 ȁozzle Note 10 No

Pad Note 11 No

Level Gauge (LG) (K1A) 2.6 150 10.02 17.63 1.37 150 -48 Note 12 No

Level Gauge (LG) (K1B) 2.6 150 9.87 17.63 1.37 150 -48 Note 13 No

Level Transmitter(LICA) (K2A) 2.6 150 10 17.63 1.37 150 -48 Note 14 No

Level Transmitter(LICA) (K2B) 2.6 150 9.89 17.63 1.37 150 -48 Note 15 No









Acid Gas Inlet (N1) 2.6 150 5.7 15.71 1.37 150 -48 Nozzle Note 16 No

Pad Note 17 No

Acid Gas Outlet (N2) 2.6 150 8.86 15.76 1.37 150 -48 Nozzle Note 18 No

Pad Note 19 No

Vent (N3) 2.6 150 7.48 16.78 1.37 150 -48 Note 20 No

Sour Water Outlet (N4) 2.6 150 8.09 16.78 1.37 150 -48 Nozzle Note 21 No

Pad Note 22 No

Drain (N5) 2.6 150 15.02 19.6 1.37 150 -48 Note 23 No

Utility Nozzle/Steam Out (N6) 2.6 150 9.86 17.63 1.37 150 -48 Note 24 No

PSV (N7) 2.6 150 10.32 17.63 1.37 150 -48 Nozzle Note 25 No

Pad Note 26 No

Wash Water Inlet (N8) 2.6 150 10.28 17.63 1.37 150 -48 Note 27 No

V-8601 54

Chamber design MDMT is 15 °C Chamber rated MDMT is -48 °C @ 5.7 bar Chamber MAWP hot & corroded is 5.7 bar @ 150 °C Chamber MAP cold & new is 13.67 bar @ 25 °C Chamber MAEP is 1.03 bar @ 150 °C External pressure rating was governed by the vacuum ring Ring. Notes for MDMT Rating:

Note # Exemption Details

1.



2.



3.



4.



5.




7.




9.

Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 23 °C, (coincident ratio = 0.6016) Rated MDMT of -85.13°C is limited to -48°C by UCS-66(b)(2)



11.









V-8601 55




17.



18.

Nozzle impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 19.9 °C, (coincident ratio = 0.6439) Rated MDMT of -82.03°C is limited to -48°C by UCS-66(b)(2)


19.





21.

Nozzle impact test exemption temperature from Fig UCS-66M Curve B = -20.41 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 15.1 °C, (coincident ratio = 0.7304) Rated MDMT of -52.51°C is limited to -48°C by UCS-66(b)(2)


22.








26.





Design notes are available on the Settings Summary page.

V-8601 56

Thickness Summary

Component Identifier Material Diameter

(mm) Length(mm)

Nominal t(mm)

Design t(mm)

Total Corrosion (mm)

Joint E Load

Top Head SA-516 60 1,990 ID 510.25 12.75* 11.18 6 1.00 External

Straight Flange on Top Head SA-516 60 1,990 ID 38 15 14.11 6 1.00 External

Shell SA-516 60 1,990 ID 6,424 15 14.11 6 1.00 External

Straight Flange on Bottom Head SA-516 60 1,990 ID 38 15 14.11 6 1.00 External

Bottom Head SA-516 60 1,990 ID 510.25 12.75* 11.18 6 1.00 External

Support Skirt 1 SA-516 60 2,020 OD 670 10 4.36 3 0.55 Wind





Support Skirt 6 SA-516 60 2,020 OD 1,512 10 5.99 3 0.55 Wind

Nominal t: Vessel wall nominal thickness

Design t: Required vessel thickness due to governing loading + corrosion

Joint E: Longitudinal seam joint efficiency


Load

internal: Circumferential stress due to internal pressure governs

external: External pressure governs

Wind: Combined longitudinal stress of pressure + weight + wind governs

Seismic: Combined longitudinal stress of pressure + weight + seismic governs

V-8601 57

Hydrostatic Test Shop test pressure determination for Chamber bounded by Bottom Head and Top Head based on MAP per UG-99(c) Shop hydrostatic test gauge pressure is 17.52 bar at 25 °C The shop test is performed with the vessel in the horizontal position.

Identifier MAP bar

Test pressure

bar


bar

UG-99(c)pressure

factor

Stress during test

kgf/cm2


kgf/cm2

Stress excessive?

Top Head 15.1 17.74 0.22 1.30 1,270.755 2,028.214 No

Straight Flange on Top Head 17.63 17.74 0.22 1.30 1,209.181 2,028.214 No

Shell 17.63 17.74 0.22 1.30 1,209.181 2,028.214 No

Straight Flange on Bottom Head 17.63 17.74 0.22 1.30 1,209.181 2,028.214 No

Bottom Head 15.1 17.74 0.22 1.30 1,270.755 2,028.214 No

Acid Gas Inlet (N1) 15.71 17.66 0.14 1.30 1,362.778 3,028.555 No

Acid Gas Outlet (N2) 15.76 17.66 0.14 1.30 1,227.708 3,028.555 No

Drain (N5) 19.6 17.64 0.12 1.30 57.679 3,303.878 No

Level Gauge (LG) (K1A) 17.63 17.55 0.03 1.30 1,366.615 3,028.555 No

Level Gauge (LG) (K1B) 17.63 17.55 0.03 1.30 1,366.615 3,028.555 No

Level Transmitter(LICA) (K2A) 17.63 17.6 0.07 1.30 1,296.83 3,028.555 No

Level Transmitter(LICA) (K2B) 17.63 17.6 0.07 1.30 1,296.83 3,028.555 No









Manway (A1) 13.67 17.78 0.25 1.30 1,953.272 3,028.555 No

Manway (A2) (2) 13.67 17.78 0.25 1.30 1,953.272 3,028.555 No

PSV (N7) 17.63 17.74 0.21 1.30 713.261 3,028.555 No

Packing Unloading (H1) 14.67 17.66 0.14 1.30 1,519.826 3,028.555 No

Sour Water Outlet (N4) 16.78 17.65 0.13 1.30 656.062 3,028.555 No

Utility Nozzle/Steam Out (N6) 17.63 17.71 0.19 1.30 1,323.809 3,028.555 No

Vent (N3) 16.78 17.65 0.12 1.30 1,253.896 3,028.555 No

Wash Water Inlet (N8) 17.63 17.65 0.12 1.30 1,319.232 3,028.555 No

Notes: (1) PL stresses at nozzle openings have been estimated using the method described in PVP-Vol. 399, pages 77-82. (2) Manway (A2) is the component that determines the test pressure. (3) 1.5*0.9*Sy used as the basis for the maximum local primary membrane stress at the nozzle intersection PL. (4) The zero degree angular position is assumed to be up, and the test liquid height is assumed to the top-most flange. The test temperature of 25 °C is warmer than the minimum recommended temperature of -0.78 °C so the brittle fracture provision of UG-99(h) has been met. NOTE: Figure UCS 66.2 general note (6) has been applied.

V-8601 58

Corroded Hydrostatic Test Field test pressure determination for Chamber bounded by Bottom Head and Top Head based on MAWP per UG-99(b) Field hydrostatic test gauge pressure is 7.4 bar at 25 °C (the chamber MAWP = 5.69 bar) The field test is performed with the vessel in the vertical position.

Identifier Local test pressure

bar


bar

UG-99(b)stress ratio

UG-99(b)pressure

factor

Stress during test

kgf/cm2


kgf/cm2

Stress excessive?

Top Head (1) 7.49 0.08 1 1.30 1,018.714 2,028.214 No

Straight Flange on Top Head 7.49 0.08 1 1.30 852.756 2,028.214 No

Shell 8.12 0.71 1 1.30 924.461 2,028.214 No

Straight Flange on Bottom Head 8.12 0.72 1 1.30 924.885 2,028.214 No

Bottom Head 8.17 0.77 1 1.30 1,111.595 2,028.214 No

Acid Gas Inlet (N1) 7.97 0.57 1 1.30 741.324 3,028.555 No

Acid Gas Outlet (N2) 7.43 0.03 1 1.30 641.995 3,028.555 No

Drain (N5) 8.19 0.79 1 1.30 51.84 3,303.878 No

Level Gauge (LG) (K1A) 7.94 0.54 1 1.30 1,171.855 3,028.555 No

Level Gauge (LG) (K1B) 8.09 0.69 1 1.30 1,194.269 3,028.555 No

Level Transmitter(LICA) (K2A) 7.96 0.56 1 1.30 1,069.498 3,028.555 No

Level Transmitter(LICA) (K2B) 8.07 0.67 1 1.30 1,083.971 3,028.555 No









Manway (A1) 7.68 0.27 1 1.30 1,388.65 3,028.555 No

Manway (A2) 8.08 0.68 1 1.30 1,461.313 3,028.555 No

PSV (N7) 7.64 0.24 1 1.30 325.082 3,028.555 No

Packing Unloading (H1) 7.89 0.49 1 1.30 921.486 3,028.555 No

Sour Water Outlet (N4) 8.21 0.81 1 1.30 344.146 3,028.555 No

Utility Nozzle/Steam Out (N6) 8.11 0.7 1 1.30 1,098.764 3,028.555 No

Vent (N3) 7.44 0.03 1 1.30 1,056.722 3,028.555 No

Wash Water Inlet (N8) 7.68 0.27 1 1.30 1,040.329 3,028.555 No

Notes: (1) Top Head limits the UG-99(b) stress ratio. (2) PL stresses at nozzle openings have been estimated using the method described in PVP-Vol. 399, pages 77-82. (3) 1.5*0.9*Sy used as the basis for the maximum local primary membrane stress at the nozzle intersection PL. The test temperature of 25 °C is warmer than the minimum recommended temperature of -31 °C so the brittle fracture provision of UG-99(h) has been met.

V-8601 59

Wind Code Building Code:

ASCE 7-10

Elevation of base above grade: 0.0000 ft (0.0000 m) Increase effective outer diameter by: 0.0000 ft (0.0000 m) Wind Force Coefficient Cf: 0.8000 Risk Category (Table 1.5-1): IIBasic Wind Speed:, V: 89.4775 mph (144.0000 km/h) Exposure category: C Wind Directionality Factor, Kd: 1.0000 Top Deflection Limit: 5 mm per m. Topographic Factor, Kzt: 1.0000 Enforce min. loading of 0.77 kPa: Yes Vessel Characteristics

Vessel height, h: 48.7194 ft (14.8497 m) Vessel Minimum Diameter, b

Operating, Corroded: 7.0866 ft (2.1600 m) Empty, Corroded: 7.0866 ft (2.1600 m)

Hydrotest, New, field: 7.0866 ft (2.1600 m) Hydrotest, Corroded, field: 7.0866 ft (2.1600 m)

Fundamental Frequency, n1 Operating, Corroded: 2.5180 Hz

Empty, Corroded: 4.0279 Hz Hydrotest, New, field: 3.1342 Hz

Hydrotest, Corroded, field: 2.7039 Hz Vacuum, Corroded: 2.5180 Hz

Damping coefficient, β Operating, Corroded: 0.0258

Empty, Corroded: 0.0210 Hydrotest, New, field: 0.0260

Hydrotest, Corroded, field: 0.0260 Vacuum, Corroded: 0.0258

Vortex Shedding Calculations Table Lookup Values 2.4.1 Basic Load Combinations for Allowable Stress Design The following load combinations are considered in accordance with ASCE section 2.4.1: 5. D + P + Ps + 0.6W 7. 0.6D + P + Ps + 0.6W Where D = Dead load P = Internal or external pressure load Ps = Static head load W = Wind load

V-8601 60

Wind Deflection Reports: Operating, Corroded Empty, Corroded Vacuum, Corroded Hydrotest, New, field Hydrotest, Corroded, field Operating, Corroded,Vortex Shedding Empty, Corroded, Vortex Shedding Vacuum, Corroded, Vortex Shedding Wind Pressure Calculations Wind Pressures at Critical Speed: Operating, Corroded Wind Pressures at Critical Speed: Empty, Corroded Wind Pressures at Critical Speed: Vacuum, Corroded Wind Deflection Report: Operating, Corroded

Component Elevation of

bottom above base (mm)

Effective OD (m)

Elastic modulusE (kg/cm²)

InertiaI (m4)

Platform wind shear atBottom (kgf)

Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 1,988,447.9 * 0 45 12.8 1.51

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 1,440.8 11,843.4 0.03


Wind Deflection Report: Empty, Corroded



Effective OD (m)


InertiaI (m4)


Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,062,603.9 * 0 45 12.8 1.5

Shell 7,877.41 2.16 2,062,603.9 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 2,062,603.9 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,062,603.9 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,062,603.9 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,062,603.9 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,062,603.9 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,062,603.9 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,062,603.9 0.02232 0 1,440.8 11,843.4 0.03


V-8601 61

Wind Deflection Report: Vacuum, Corroded



Effective OD (m)


InertiaI (m4)


Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 1,988,447.9 * 0 45 12.8 1.51

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 1,440.8 11,843.4 0.03


Wind Deflection Report: Hydrotest, New, field



Effective OD (m)


InertiaI (m4)


Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,059,828.1 * 0 45 13.8 1.05

Shell 7,877.41 2.16 2,059,828.1 0.04748 0 695.4 3,478.9 1

Bottom Head (top) 7,776 2.16 2,059,828.1 * 0 705.6 3,550 0.41

Support Skirt 1 7,106 2.02 2,059,828.1 0.03189 0 769.1 4,041.9 0.4

Support Skirt 2 5,606 2.02 2,059,828.1 0.03189 0 911.1 5,302 0.34

Support Skirt 3 4,106 2.02 2,059,828.1 0.03189 0 1,053.1 6,775.2 0.23

Support Skirt 4 2,606 2.02 2,059,828.1 0.03189 0 1,195.1 8,461.4 0.13

Support Skirt 5 1,512 2.02 2,059,828.1 0.03189 0 1,298.7 9,825.5 0.06

Support Skirt 6 0 2.02 2,059,828.1 0.03189 0 1,441.9 11,897.4 0.02


V-8601 62

Wind Deflection Report: Hydrotest, Corroded, field



Effective OD (m)


InertiaI (m4)


Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,059,828.1 * 0 45 12.8 1.5

Shell 7,877.41 2.16 2,059,828.1 0.02875 0 695.4 3,428.8 1.43

Bottom Head (top) 7,776 2.16 2,059,828.1 * 0 705.6 3,499.8 0.58

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 769 3,992.1 0.56

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 910.8 5,251.9 0.48

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 1,052.6 6,724.5 0.32

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 1,194.4 8,409.7 0.18

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 1,297.8 9,773 0.08

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 1,440.8 11,843.4 0.03


Wind Deflection Report: Operating, Corroded, Vortex Shedding



Effective OD (m)


InertiaI (m4)


Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 1,988,447.9 * 0 197.4 55.9 3.82

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 2,002.9 9,336.1 3.63

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 2,013.2 9,539.7 1.44

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 2,076.5 10,908 1.41

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 2,218.3 14,129.1 1.2

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 2,360.1 17,563 0.79

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 2,501.9 21,209.5 0.45

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 2,605.4 24,003.2 0.19

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 2,748.3 28,050.6 0.07


Wind Deflection Report: Empty, Corroded, Vortex Shedding



Effective OD (m)


InertiaI (m4)


Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 2,062,603.9 * 0 556.3 154.6 9.49

Shell 7,877.41 2.16 2,062,603.9 0.02875 0 5,223.5 23,842.6 9.01

Bottom Head (top) 7,776 2.16 2,062,603.9 * 0 5,233.7 24,372.9 3.55

Support Skirt 1 7,106 2.02 2,062,603.9 0.02232 0 5,297.1 27,899 3.48

Support Skirt 2 5,606 2.02 2,062,603.9 0.02232 0 5,438.9 35,950.9 2.97

Support Skirt 3 4,106 2.02 2,062,603.9 0.02232 0 5,580.7 44,215.6 1.95

Support Skirt 4 2,606 2.02 2,062,603.9 0.02232 0 5,722.5 52,693 1.1

Support Skirt 5 1,512 2.02 2,062,603.9 0.02232 0 5,825.9 59,010 0.46

Support Skirt 6 0 2.02 2,062,603.9 0.02232 0 5,968.9 67,926.8 0.16


V-8601 63

Wind Deflection Report: Vacuum, Corroded, Vortex Shedding



Effective OD (m)


InertiaI (m4)


Total windshear at

Bottom (kgf)

bending moment at

Bottom (kgf-m)


Top Head 14,301.41 2.16 1,988,447.9 * 0 197.4 55.9 3.82

Shell 7,877.41 2.16 1,988,447.9 0.02875 0 2,002.9 9,336.1 3.63

Bottom Head (top) 7,776 2.16 1,988,447.9 * 0 2,013.2 9,539.7 1.44

Support Skirt 1 7,106 2.02 2,059,828.1 0.02232 0 2,076.5 10,908 1.41

Support Skirt 2 5,606 2.02 2,059,828.1 0.02232 0 2,218.3 14,129.1 1.2

Support Skirt 3 4,106 2.02 2,059,828.1 0.02232 0 2,360.1 17,563 0.79

Support Skirt 4 2,606 2.02 2,059,828.1 0.02232 0 2,501.9 21,209.5 0.45

Support Skirt 5 1,512 2.02 2,059,828.1 0.02232 0 2,605.4 24,003.2 0.19

Support Skirt 6 0 2.02 2,059,828.1 0.02232 0 2,748.3 28,050.6 0.07


Wind Pressure (WP) Calculations Gust Factor (G¯) Calculations Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kzt * Kd * V2

= 0.613 * Kz * 1.0000 * 1.0000 * 40.00002 = 980.8002 * Kz

WP = 0.6 * qz * G * Cf (Minimum 0.0077 bar) = 0.6 * qz * G * 0.8000 (Minimum 0.0077 bar)

Design Wind Pressures

Height Z (m) Kz qz

(bar) WP: Operating

(bar) WP: Empty

(bar) WP: Hydrotest New

(bar) WP: Hydrotest Corroded

(bar) WP: Vacuum

(bar)

4.6 0.8489 0.0083 0.0046 0.0046 0.0046 0.0046 0.0046

6.1 0.9019 0.0089 0.0046 0.0046 0.0046 0.0046 0.0046

7.6 0.9453 0.0093 0.0046 0.0046 0.0046 0.0046 0.0046

9.1 0.9823 0.0096 0.0046 0.0046 0.0046 0.0046 0.0046

12.2 1.0436 0.0102 0.0046 0.0046 0.0046 0.0046 0.0046

15.2 1.0938 0.0107 0.0046 0.0046 0.0046 0.0046 0.0046

Design Wind Force determined from: F = Pressure * Af , where Af is the projected area.

V-8601 64

Vortex Shedding Calculations Vortex shedding calculations are based on NBC 1995 building code, Structural Commentaries (Part 4). Average diameter of vessel (upper third): D = 6.4155 ft (1955.44 mm) Aspect ratio: Ar = 7.5940 Vortex shedding factor, Operating, Corroded: C1 = 2.0668 Vortex shedding factor, Operating, Corroded: C2 = 0.6000 Vortex shedding factor, Empty, Corroded: C1 = 2.0668 Vortex shedding factor, Empty, Corroded: C2 = 0.6000 Vortex shedding factor, Vacuum, Corroded: C1 = 2.0668 Vortex shedding factor, Vacuum, Corroded: C2 = 0.6000 Weight per foot of vessel, Operating, Corroded, (upper third): M = 3,582.5403 lb/ft (53.3141 kg/cm) Strouhal number, Operating, Corroded: S = 0.2000 Weight per foot of vessel, Empty, Corroded, (upper third): M = 1,562.0673 lb/ft (23.2461 kg/cm) Strouhal number, Empty, Corroded: S = 0.2000 Weight per foot of vessel, Vacuum, Corroded, (upper third): M = 3,582.5403 lb/ft (53.3141 kg/cm) Strouhal number, Vacuum, Corroded: S = 0.2000 Critical wind speed at top of vessel, Vh = (n*D/S)*(3600/5280) mph Operating, Corroded: Vh = (2.5180*6.4155/0.2000)*(3600/5280) = 55.0710 mph (88.6283 km/h) Empty, Corroded: Vh = (4.0279*6.4155/0.2000)*(3600/5280) = 88.0944 mph (141.7741 km/h) Vacuum, Corroded: Vh = (2.5180*6.4155/0.2000)*(3600/5280) = 55.0710 mph (88.6283 km/h) Reference wind speed corresponding to critical wind speed, VRef Operating, Corroded: VRef = 52.8584 mph (85.0674 km/h) Empty, Corroded: VRef = 84.5549 mph (136.0779 km/h) Vacuum, Corroded: VRef = 52.8584 mph (85.0674 km/h) Corresponding reference wind speed, VRef Operating, Corroded: VRef = 89.4775 mph (144.0000 km/h) Empty, Corroded: VRef = 89.4775 mph (144.0000 km/h) Vacuum, Corroded: VRef = 89.4775 mph (144.0000 km/h) Corresponding pressure at top of vessel, qh = 0.00256 * Vh

2 Operating, Corroded: qh = 0.00256 * (55.0710)2 = 7.7640 psf (0 bar) Empty, Corroded: qh = 0.00256 * (88.0944)2 = 19.8672 psf (0.01 bar) Vacuum, Corroded: qh = 0.00256 * (55.0710)2 = 7.7640 psf (0 bar) Equivalent static loading, FL = qh*C1*D / (SQR(Ar)*SQR(β - (C2*R0*D2/M))) Operating, Corroded: FL = 7.7640*2.0668*6.4155 / (SQR(7.5940)*SQR(0.0258 - (0.6000*0.0765*(6.4155)2/3,582.5403)))

= 235.2119 lb/ft (3.5003 kg/cm) Empty, Corroded: FL = 19.8672*2.0668*6.4155 / (SQR(7.5940)*SQR(0.0210 - (0.6000*0.0765*(6.4155)2/1,562.0673)))

= 679.5112 lb/ft (10.1122 kg/cm) Vacuum, Corroded: FL = 7.7640*2.0668*6.4155 / (SQR(7.5940)*SQR(0.0258 - (0.6000*0.0765*(6.4155)2/3,582.5403)))

= 235.2119 lb/ft (3.5003 kg/cm)

V-8601 65

Static loading FL is applied throughout the top third of the vessel Wind Pressures at Critical Wind Speed: Operating, Corroded (Vh = 24.6190 m/sec) Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kd * Kzt * Vh2 * I

= 0.613 * Kz * 1.0000 * 1.0000 * (24.6190)2 * 1.0000 = 371.5352 * Kz

WP = qz * G¯ * Cf = qz * 0.8891 * 0.8000


4.6 0.8489 0.0032 0.0013

6.1 0.9019 0.0034 0.0014

7.6 0.9453 0.0035 0.0015

9.1 0.9823 0.0037 0.0016

12.2 1.0436 0.0039 0.0017

15.2 1.0938 0.0041 0.0017

Wind Pressures at Critical Wind Speed: Empty, Corroded (Vh = 39.3817 m/sec) Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kd * Kzt * Vh2 * I

= 0.613 * Kz * 1.0000 * 1.0000 * (39.3817)2 * 1.0000 = 950.7130 * Kz

WP = qz * G¯ * Cf = qz * 0.8891 * 0.8000


4.6 0.8489 0.0081 0.0034

6.1 0.9019 0.0086 0.0037

7.6 0.9453 0.0090 0.0038

9.1 0.9823 0.0093 0.0040

12.2 1.0436 0.0099 0.0042

15.2 1.0938 0.0104 0.0044

V-8601 66

Wind Pressures at Critical Wind Speed: Vacuum, Corroded (Vh = 24.6190 m/sec) Kz = 2.01 * (Z/Zg)2/α

= 2.01 * (Z/274.3200)0.2105 qz = 0.613 * Kz * Kd * Kzt * Vh2* I

= 0.613 * Kz * 1.0000 * 1.0000 * (24.6190)2 * 1.0000 = 371.5352 * Kz

WP = qz * G¯ * Cf = qz * 0.8891 * 0.8000


4.6 0.8489 0.0032 0.0013

6.1 0.9019 0.0034 0.0014

7.6 0.9453 0.0035 0.0015

9.1 0.9823 0.0037 0.0016

12.2 1.0436 0.0039 0.0017

15.2 1.0938 0.0041 0.0017

Gust Factor Calculations Operating, Corroded Empty, Corroded Vacuum, Corroded Hydrotest, New, field Hydrotest, Corroded, field Operating, Corroded, Vortex Shedding Empty, Corroded, Vortex Shedding Vacuum, Corroded, Vortex Shedding Gust Factor Calculations: Operating, Corroded Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

V-8601 67

Gust Factor Calculations: Empty, Corroded Vessel is considered a rigid structure as n1 = 4.0279 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Vacuum, Corroded Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Hydrotest, New, field Vessel is considered a rigid structure as n1 = 3.1342 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

V-8601 68

Gust Factor Calculations: Hydrotest, Corroded, field Vessel is considered a rigid structure as n1 = 2.7039 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Operating, Corroded, Vortex Shedding Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Gust Factor Calculations: Empty, Corroded, Vortex Shedding Vessel is considered a rigid structure as n1 = 4.0279 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

V-8601 69

Gust Factor Calculations: Vacuum, Corroded, Vortex Shedding Vessel is considered a rigid structure as n1 = 2.5180 Hz ≥ 1 Hz. z¯ = max ( 0.60 * h , zmin )

= max ( 0.60 * 48.7194 , 15.0000 ) = 29.2316

Iz¯ = c * (33 / z¯)1/6 = 0.2000 * (33 / 29.2316)1/6 = 0.2041

Lz¯ = l * (z¯ / 33)ep = 500.0000 * (29.2316 / 33)0.2000 = 488.0202

Q = Sqr(1 / (1 + 0.63 * ((b + h) / Lz¯)0.63)) = Sqr(1 / (1 + 0.63 * ((7.0866 + 48.7194) / 488.0202)0.63)) = 0.9282

G = 0.925 * (1 + 1.7 * gQ * Iz¯ * Q) / (1 + 1.7 * gv * Iz¯) = 0.925 * (1 + 1.7 * 3.40* 0.2041 * 0.9282) / (1 + 1.7 * 3.40 * 0.2041)= 0.8891

Table Lookup Values α = 9.5000, zg = 274.3200 m [Table 26.9-1, page 256] c = 0.2000, l = 500.0000, ep = 0.2000 [Table 26.9-1, page 256] a¯ = 0.1538, b¯ = 0.6500 [Table 26.9-1, page 256] zmin = 15.0000 ft [Table 26.9-1, page 256] gQ = 3.40 [26.9.4 page 254] gv = 3.40 [26.9.4 page 254]

V-8601 70

Shell ASME Section VIII Division 1, 2010 Edition Metric Component: CylinderMaterial specification: SA-516 60 (II-D Metric p. 10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 22.7 °C, (coincident ratio = 0.605) Rated MDMT of -84.83°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 15 mm Internal design pressure: P = 2.6 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps = 0.7 bar (SG = 0.987, Hs = 7,270 mm,Operating head)Pth = 0.22 bar (SG = 1, Hs = 2,250 mm, Horizontal test head)Ptv = 0.71 bar (SG = 1, Hs = 7,270 mm, Vertical test head)Corrosion allowance Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15 °C No impact test performedRated MDMT = -48 °C Material is normalized


Radiography: Longitudinal joint - Full UW-11(a) Type 1Top circumferential joint - Full UW-11(a) Type 1Bottom circumferential joint - Full UW-11(a) Type 1

Estimated weight New = 4,662.3 kg corr = 2,806.1 kg Capacity New = 19,980.28 liters corr = 20,221.96 litersID = 1,990 mmLength Lc = 6,424 mmt = 15 mm Insulation thk: 70 mm density: 1,000 kg/m3 Weight: 2,952.6 kg

Insulation Support Spacing: 400 mm Individual Support Weight: 40 kg Total Support

Weight: 640 kg

Design thickness, (at 150 °C) UG-27(c)(1) t = P*R / (S*E - 0.60*P) + Corrosion

= 3.3*1,001 / (1,180*1.00 - 0.60*3.3) + 6 = 8.81 mm


= 1,180*1.00*9 / (1,001 + 0.60*9) - 0.7= 9.85 bar


= 1,180*1.00*15 / (995 + 0.60*15)= 17.63 bar


= 4*193.16 / (3*(2,020 / 8.11)) = 1.03 bar


V-8601 71

Maximum Allowable External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 3,417.83 / 2,020 = 1.6920 Do / t = 2,020 / 9 = 224.4315From table G: A = 0.000233 From table CS-2 Metric: B = 235.0941 kg/cm2 (230.548 bar)Pa = 4*B / (3*(Do / t))

= 4*230.55 / (3*(2,020 / 9))= 1.37 bar


= (50*15 / 1,002.5)*(1 - 1,002.5 / ∞) = 0.7481%

The extreme fiber elongation does not exceed 5%. External Pressure + Weight + Wind Loading Check (Bergman, ASME paper 54-A-104) Pv = W / (2*π*Rm) + M / (π*Rm

2)= 10*13,332.7 / (2*π*1,005.5) + 10000*3,428.8 / (π*1,005.52)= 31.8985 kg/cm

α = Pv / (Pe*Do) = 9.803*31.8985 / (1.03*2,020)= 0.1497

n = 4

m = 1.23 / (L / Do)2 = 1.23 / (3,417.83 / 2,020)2 = 0.4296

Ratio Pe = (n2 - 1 + m + m*α) / (n2 - 1 + m) = (42 - 1 + 0.4296 + 0.4296*0.1497) / (42 - 1 + 0.4296)= 1.0042

Ratio Pe * Pe ≤ MAEP design cylinder thickness is satisfactory. Design thickness = 14.11 mm The governing condition is due to external pressure. The cylinder thickness of 15 mm is adequate.

V-8601 72

Thickness Required Due to Pressure + External Loads




°C) Corrosion


Due to Tension (mm)


St Sc


2.6 1,203.3 891.3 150 6 Wind 0.91 0.7



0 1,203.3 891.3 150 6 Wind 0.02 0.3



Empty, New 0 1,203.3 1,028.6 21.11 0 Wind 0.03 0.29

Vacuum -1.03 1,203.3 891.3 150 6 Wind 0.51 0.79


0 1,203.3 891.3 150 6 Weight 0.2 0.27


2.6 1,203.3 891.3 150 6 Wind 1.03 0.57


0 1,203.3 891.3 21.11 6 Wind 0.43 0.9


-1.03 1,203.3 891.3 150 6 Wind 0.34 0.97


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScCN = min(B, S) = 1,028.6 kg/cm2

V-8601 73

Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 2.6*1,001 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.92 mm


= 3,428.8 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.07 mm






= 2*1,180*1.20*1.00*(9 - 0.07 + (0.09)) / (1,001 - 0.40*(9 - 0.07 + (0.09)))= 25.59 bar


= 2.6*995 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.91 mm


= 3,478.9 / (π*1,002.52*1,180*1.20*1.00) * 98066.5 = 0.08 mm


V-8601 74





= 2*1,180*1.20*1.00*(15 - 0.08 + (0.1)) / (995 - 0.40*(15 - 0.08 + (0.1)))= 43.03 bar













V-8601 75














= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 3,428.8 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.1 mm



V-8601 76




= 2*874.05*1.20*(9 - 0.1 - 0.2) / (1,001 - 0.40*(9 - 0.1 - 0.2))= 18.3 bar







= 2.6*1,001 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.92 mm


= 9,336.1 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.2 mm





V-8601 77


= 2*1,180*1.20*1.00*(9 - 0.2 + (0.09)) / (1,001 - 0.40*(9 - 0.2 + (0.09)))= 25.23 bar






= 23,842.6 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.7 mm




= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 9,336.1 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.27 mm






= 2*874.05*1.20*(9 - 0.27 - 0.2) / (1,001 - 0.40*(9 - 0.27 - 0.2))= 17.93 bar

V-8601 78

Top Head ASME Section VIII, Division 1, 2010 Edition Metric Component: Ellipsoidal Head Material Specification: SA-516 60 (II-D Metric p.10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -47.94 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 15.7 °C, (coincident ratio = 0.7201) Rated MDMT of -80.64°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 12.75 mm Internal design pressure: P = 2.6 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps= 0.08 bar (SG=0.987, Hs=808 mm Operating head) Pth= 0.22 bar (SG=1, Hs=2250 mm Horizontal test head) Ptv= 0.08 bar (SG=1, Hs=808 mm Vertical test head) Corrosion allowance: Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15°C No impact test performed Rated MDMT = -48°C Material is normalized




= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (2,002 / (2*503.5))2] = 0.99208

K (New) K

= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (1,990 / (2*497.5))2] = 1

V-8601 79


= 2.68*2,002*0.99208 / (2*1,180*1 - 0.2*2.68) + 6= 8.25 mm

The head internal pressure design thickness is 8.26 mm. Maximum allowable working pressure, (Corroded at 150 °C) Appendix 1-4(c) P = 2*S*E*t / (K*D + 0.2*t) - Ps

= 2*1,180*1*6.75 / (0.99208*2,002 +0.2*6.75) - 0.08= 7.94 bar


= 2*1,180*1*12.75 / (1*1,990 +0.2*12.75) - 0 = 15.1 bar


= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 5.18) = 0.000361


= 357.9783 / (1,791.29 / 5.18) = 1.0342 bar


= 1.67*1.03*2,002*0.99208 / (2*1,180*1 - 0.2*1.67*1.03) + 6= 7.45 mm


= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 6.75) = 0.000471


= 467.5401 / (1,791.29 / 6.75) = 1.7619 bar


= 2*1,180*1*6.75 / ((0.99208*2,002 +0.2*6.75)*1.67) - 0= 4.8 bar

The maximum allowable external pressure (MAEP) is 1.76 bar.

V-8601 80


= (75*15 / 345.8)*(1 - 345.8 / ?) = 3.2533%


V-8601 81

Straight Flange on Top Head ASME Section VIII Division 1, 2010 Edition Metric Component: Straight FlangeMaterial specification: SA-516 60 (II-D Metric p. 10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 27.3 °C, (coincident ratio = 0.5461) Rated MDMT of -89.43°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 15 mm Internal design pressure: P = 2.6 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps = 0.08 bar (SG = 0.987, Hs = 846 mm,Operating head)Pth = 0.22 bar (SG = 1, Hs = 2,250 mm, Horizontal test head)Ptv = 0.08 bar (SG = 1, Hs = 846 mm, Vertical test head)Corrosion allowance Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15 °C No impact test performedRated MDMT = -48 °C Material is normalized




= 2.68*1,001 / (1,180*1.00 - 0.60*2.68) + 6 = 8.28 mm


= 1,180*1.00*9 / (1,001 + 0.60*9) - 0.08 = 10.47 bar


= 1,180*1.00*15 / (995 + 0.60*15)= 17.63 bar


= 4*193.16 / (3*(2,020 / 8.11)) = 1.03 bar


= 4*230.55 / (3*(2,020 / 9))= 1.37 bar

V-8601 82


= (50*15 / 1,002.5)*(1 - 1,002.5 / ∞) = 0.7481%





°C) Corrosion


Due to Tension (mm)


St Sc


2.6 1,203.3 891.3 150 6 Wind 0.91 0.91



0 1,203.3 891.3 150 6 Wind 0.01 0.01



Empty, New 0 1,203.3 1,028.6 21.11 0 Wind 0.01 0.01

Vacuum -1.03 1,203.3 891.3 150 6 Wind 0.5 0.5


0 1,203.3 891.3 150 6 Weight 0.01 0.01


2.6 1,203.3 891.3 150 6 Wind 0.92 0.91


0 1,203.3 891.3 21.11 6 Wind 0 0.01


-1.03 1,203.3 891.3 150 6 Wind 0.5 0.5


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScHC = min(B, S) = 891.3 kg/cm2

V-8601 83

Allowable Compressive Stress, Hot and New- ScHN, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 2.6*1,001 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.92 mm


= 12.8 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0 mm




V-8601 84



= 2*1,180*1.20*1.00*(9 - 0 + (0)) / (1,001 - 0.40*(9 - 0 + (0)))= 25.57 bar


= 2.6*995 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.91 mm


= 13.8 / (π*1,002.52*1,180*1.20*1.00) * 98066.5 = 0 mm

tw = 0.6*W / (2*π*Rm*St*Ks*Ec) * MetricFactor (Weight)= 0.60*902.5 / (2*π*1,002.5*1,180*1.20*1.00) * 98.0665= 0.01 mm

tt = tp + tm - tw (total required, tensile)= 0.91 + 0 - (0.01) = 0.91 mm




= 2*1,180*1.20*1.00*(15 - 0 + (0.01)) / (995 - 0.40*(15 - 0 + (0.01)))= 42.97 bar







V-8601 85


















V-8601 86



= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 12.8 / (π*1,005.52*874.05*1.20) * 98066.5 = 0 mm






= 2*874.05*1.20*(9 - 0 - 0.01) / (1,001 - 0.40*(9 - 0 - 0.01))= 18.91 bar



tw = W / (2*π*Rm*Sc*Ks) * MetricFactor (Weight)= 667.9 / (2*π*1,005.5*874.05*1.00) * 98.0665 = 0.01 mm



V-8601 87


= 2.6*1,001 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.92 mm


= 55.9 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0 mm






= 2*1,180*1.20*1.00*(9 - 0 + (0)) / (1,001 - 0.40*(9 - 0 + (0)))= 25.56 bar




tt = |tp + tm - tw| (total, net compressive)= |0 + 0 - (0.01)| = 0 mm



V-8601 88


= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 55.9 / (π*1,005.52*874.05*1.20) * 98066.5 = 0 mm






= 2*874.05*1.20*(9 - 0 - 0.01) / (1,001 - 0.40*(9 - 0 - 0.01))= 18.91 bar

V-8601 89

Bottom Head ASME Section VIII, Division 1, 2010 Edition Metric Component: Ellipsoidal Head Material Specification: SA-516 60 (II-D Metric p.10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -47.94 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 10.9 °C, (coincident ratio = 0.8046) Rated MDMT of -75.84°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 12.75 mm Internal design pressure: P = 2.6 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps= 0.76 bar (SG=0.987, Hs=7811.5 mm Operating head) Pth= 0.22 bar (SG=1, Hs=2250 mm Horizontal test head) Ptv= 0.76 bar (SG=1, Hs=7805.5 mm Vertical test head) Corrosion allowance: Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15°C No impact test performed Rated MDMT = -48°C Material is normalized




= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (2,002 / (2*503.5))2] = 0.99208

K (New) K

= (1/6)*[2 + (D / (2*h))2]

= (1/6)*[2 + (1,990 / (2*497.5))2] = 1


= 3.36*2,002*0.99208 / (2*1,180*1 - 0.2*3.36) + 6= 8.82 mm


V-8601 90


= 2*1,180*1*6.75 / (0.99208*2,002 +0.2*6.75) - 0.76= 7.26 bar


= 2*1,180*1*12.75 / (1*1,990 +0.2*12.75) - 0 = 15.1 bar


= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 5.18) = 0.000361


= 357.9783 / (1,791.29 / 5.18) = 1.0342 bar


= 1.67*1.03*2,002*0.99208 / (2*1,180*1 - 0.2*1.67*1.03) + 6= 7.45 mm


= 0.8888*2,015.5 = 1,791.29 mm

A = 0.125 / (Ro / t)

= 0.125 / (1,791.29 / 6.75) = 0.000471


= 467.5401 / (1,791.29 / 6.75) = 1.7619 bar


= 2*1,180*1*6.75 / ((0.99208*2,002 +0.2*6.75)*1.67) - 0= 4.8 bar


= (75*15 / 345.8)*(1 - 345.8 / ?) = 3.2533%


V-8601 91

Straight Flange on Bottom Head ASME Section VIII Division 1, 2010 Edition Metric Component: Straight FlangeMaterial specification: SA-516 60 (II-D Metric p. 10, ln. 27)Material impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 22.7 °C, (coincident ratio = 0.6054) Rated MDMT of -84.83°C is limited to -48°C by UCS-66(b)(2) UCS-66 governing thickness = 15 mm Internal design pressure: P = 2.6 bar @ 150 °C External design pressure: Pe = 1.03 bar @ 150 °C Static liquid head: Ps = 0.71 bar (SG = 0.987, Hs = 7,308 mm,Operating head)Pth = 0.22 bar (SG = 1, Hs = 2,250 mm, Horizontal test head)Ptv = 0.72 bar (SG = 1, Hs = 7,308 mm, Vertical test head)Corrosion allowance Inner C = 6 mm Outer C = 0 mmDesign MDMT = 15 °C No impact test performedRated MDMT = -48 °C Material is normalized




= 3.31*1,001 / (1,180*1.00 - 0.60*3.31) + 6 = 8.81 mm


= 1,180*1.00*9 / (1,001 + 0.60*9) - 0.71 = 9.85 bar


= 1,180*1.00*15 / (995 + 0.60*15)= 17.63 bar


= 4*193.16 / (3*(2,020 / 8.11)) = 1.03 bar


= 4*230.55 / (3*(2,020 / 9))= 1.37 bar

V-8601 92


= (50*15 / 1,002.5)*(1 - 1,002.5 / ∞) = 0.7481%





°C) Corrosion


Due to Tension (mm)


St Sc


2.6 1,203.3 891.3 150 6 Wind 0.91 0.7



0 1,203.3 891.3 150 6 Wind 0.02 0.3



Empty, New 0 1,203.3 1,028.6 21.11 0 Wind 0.03 0.29

Vacuum -1.03 1,203.3 891.3 150 6 Wind 0.51 0.79


0 1,203.3 891.3 150 6 Weight 0.2 0.27


2.6 1,203.3 891.3 150 6 Wind 1.04 0.57


0 1,203.3 891.3 21.11 6 Wind 0.44 0.91


-1.03 1,203.3 891.3 150 6 Wind 0.33 0.97


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2

ScHC = min(B, S) = 891.3 kg/cm2

V-8601 93

Allowable Compressive Stress, Hot and New- ScHN, (table CS-2 Metric) A = 0.125 / (Ro / t)

= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 15)= 0.001856

B = 1,028.6 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 0.125 / (1,010 / 9)= 0.001114

B = 891.3 kg/cm2

S = 1,203.3 / 1.00 = 1,203.3 kg/cm2


= 2.6*1,001 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.92 mm


= 3,457.4 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.08 mm



V-8601 94




= 2*1,180*1.20*1.00*(9 - 0.08 + (0.09)) / (1,001 - 0.40*(9 - 0.08 + (0.09)))= 25.59 bar


= 2.6*995 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.91 mm


= 3,507.6 / (π*1,002.52*1,180*1.20*1.00) * 98066.5 = 0.08 mm






= 2*1,180*1.20*1.00*(15 - 0.08 + (0.1)) / (995 - 0.40*(15 - 0.08 + (0.1)))= 43.03 bar






V-8601 95











tt = ötp + tm - tw| (total, net compressive)= |0 + 0.1 - (0.12)| = 0.02 mm



V-8601 96








= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 3,457.4 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.1 mm






= 2*874.05*1.20*(9 - 0.1 - 0.2) / (1,001 - 0.40*(9 - 0.1 - 0.2))= 18.3 bar

V-8601 97







= 2.6*1,001 / (2*1,180*1.20*1.00 + 0.40*|2.6|) = 0.92 mm


= 9,418.5 / (π*1,005.52*1,180*1.20*1.00) * 98066.5 = 0.21 mm






= 2*1,180*1.20*1.00*(9 - 0.21 + (0.09)) / (1,001 - 0.40*(9 - 0.21 + (0.09)))= 25.22 bar




V-8601 98



= 24,057.5 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.71 mm




= -1.03*1,001 / (2*874.05*1.20 + 0.40*|1.03|) = -0.49 mm


= 9,418.5 / (π*1,005.52*874.05*1.20) * 98066.5 = 0.28 mm






= 2*874.05*1.20*(9 - 0.28 - 0.2) / (1,001 - 0.40*(9 - 0.28 - 0.2))= 17.93 bar

V-8601 99

Nozzle Calculation Design Conditions

(Maximum Conditions)

V-8601 100

Nozzle Summary

Nozzle mark

OD (mm)

tn (mm)

Req tn (mm) A1? A2?

Shell Reinforcement Pad Corr

(mm) Aa/Ar

(%) Nom t(mm)

Design t(mm)

User t(mm)

Width(mm)

tpad (mm)

A1 609.6 15 14.03 Yes Yes 15 14.03 120.2 15 6 100.0

A2 609.6 15 14.03 Yes Yes 15 14.03 120.2 15 6 100.0

H1 318.89 15 15 Yes Yes 15 12.47 53.05 15 6 100.0

K1A 60.32 11.07 10.77 Yes Yes 15 N/A N/A N/A 6 Exempt

K1B 60.32 11.07 10.77 Yes Yes 15 N/A N/A N/A 6 Exempt

K2A 48.26 11 10.54 Yes Yes 15 N/A N/A N/A 6 Exempt

K2B 48.26 11 10.54 Yes Yes 15 N/A N/A N/A 6 Exempt









N1 318.89 15 11.32 Yes Yes 15 13.36 70.55 15 6 100.0

N2 318.89 15 13.48 Yes Yes 12.75* 11.98 70.55 15 6 100.0

N3 60.32 11.07 10.77 Yes Yes 12.75* N/A N/A N/A 6 Exempt

N4 88.9 15.24 12.34 Yes Yes 12.75* N/A 60.56 15 6 Exempt

N5 88.9 15.24 8.82 Yes Yes 15.24 N/A N/A N/A 6 Exempt

N6 60.32 11.07 10.77 Yes Yes 15 N/A N/A N/A 6 Exempt

N7 114.3 13.49 12.88 Yes Yes 15 15 60.56 15 6 153.6

N8 60.32 11.07 10.77 Yes Yes 15 N/A N/A N/A 6 Exempt

tn: Nozzle thickness

Req tn: Nozzle thickness required per UG-45/UG-16

Nom t: Vessel wall thickness

Design t: Required vessel wall thickness due to pressure + corrosion allowance per UG-37

User t: Local vessel wall thickness (near opening)

Aa: Area available per UG-37, governing condition

Ar: Area required per UG-37, governing condition

Corr: Corrosion allowance on nozzle wall


V-8601 101

Nozzle Schedule

Nozzle mark Service Size

Materials

Nozzle Impact Norm Fine Grain Pad Impact Norm Fine

Grain Flange

A1 Manway 579.60 IDx15.00 SA-516 60 No Yes No

SA-516 60

No Yes No WN A105 Class 150

A2 Manway 579.60 IDx15.00 SA-516 60 No Yes No

SA-516 60


H1 Packing Unloading 288.89 IDx15.00

SA-106 B Smls. Pipe No Yes No

SA-516 60


K1A Level Gauge (LG) NPS 2 XX Heavy DN 50

SA-106 B Smls. Pipe No No No N/A N/A N/A N/A WN A105

Class 300

K1B Level Gauge (LG) NPS 2 XX Heavy DN 50


Class 300

K2A

Level Transmitter(LICA)

26.26 IDx11.00


Class 300

K2B

Level Transmitter(LICA)

26.26 IDx11.00


Class 300

K3A

Level Transmitter(LZA)

26.26 IDx11.00


Class 300

K3B


26.26 IDx11.00


Class 300

K4A


26.26 IDx11.00


Class 300

K4B


26.26 IDx11.00


Class 300

K5A


26.26 IDx11.00


Class 300

K5B


26.26 IDx11.00


Class 300

K6A


26.26 IDx11.00


Class 300

K6B


26.26 IDx11.00


Class 300

N1 Acid Gas Inlet 288.89 IDx15.00 SA-516 60 No Yes No

SA-516 60


N2 Acid Gas Outlet 288.89 IDx15.00 SA-516 60 No Yes No

SA-516 60


N3 Vent NPS 2 XX Heavy DN 50

SA-106 B Smls. Pipe No Yes No N/A N/A N/A N/A WN A105

Class 150

N4 Sour Water Outlet NPS 3 XX Heavy DN 80


SA-516 60


N5 Drain NPS 3 XX Heavy DN 80


Class 150

V-8601 102

Nozzle Schedule (Cont.)

N6

Utility Nozzle/Steam Out

NPS 2 XX Heavy DN 50


Class 150

N7 PSV NPS 4 Sch 160 DN 100


SA-516 60


N8 Wash Water Inlet NPS 2 XX Heavy DN 50


Class 150

V-8601 103

Manway (A1) ASME Section VIII Division 1, 2010 Edition Metric

tw(lower) = 15 mm Leg41 = 12 mm tw(upper) = 15 mm Leg42 = 12 mm Dp = 850 mm te = 15 mm

Note: round inside edges per UG-76(c) Located on: Shell Liquid static head included: 0.2706 bar

Nozzle material specification: SA-516 60 (II-D Metric p. 10, ln. 27) (normalized)

Nozzle longitudinal joint efficiency: 1

Pad material specification: SA-516 60 (II-D Metric p. 10, ln. 27) (normalized)

Pad diameter: 850 mm Flange description: NPS 24 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3029) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.2426 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C Gasket Description: Flexitallic Spiral Wound CG 316L S.S.PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 180° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 4,800 mm End of nozzle to shell center: 1,330 mm Nozzle inside diameter, new: 579.6 mm Nozzle nominal wall thickness: 15 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 167.6 mm Projection available outside vessel to flange face, Lf: 320 mm Pad is split: No

V-8601 104

Reinforcement Calculations for Internal Pressure Available reinforcement per UG-37 governs the MAWP of this nozzle.

UG-37 Area Calculation Summary (cm2) For P = 9.42 bar @ 150 °C

The opening is adequately reinforced

UG-45 Nozzle Wall Thickness Summary (mm)The nozzle passes UG-45

A required

A available A1 A2 A3 A5

A welds treq tmin

47.4812 47.4858 5.7658 2.9826 -- 36.06 2.6774 14.03 15

UG-41 Weld Failure Path Analysis Summary (kgf) All failure paths are stronger than the applicable weld loads

Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

50,406 50,200 165,983 7,027 272,383 52,150 171,207

UW-16 Weld Sizing Summary

Weld description Required weld size (mm)

Actual weldsize (mm) Status

Nozzle to pad fillet (Leg41) 6 8.4 weld size is adequate

Pad to shell fillet (Leg42) 4.5 8.4 weld size is adequate

Nozzle to pad groove (Upper) 6.3 15 weld size is adequate

Calculations for internal pressure 9.42 bar @ 150 °C Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.1667). Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 25.8 °C, (coincident ratio = 0.564) Rated MDMT of -87.93°C is limited to -48°C by UCS-66(b)(2). Nozzle UCS-66 governing thk: 15 mm Nozzle rated MDMT: -105 °C Pad UCS-66 governing thickness: 15 mm Pad rated MDMT: -48 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(591.6, 295.8 + (15 - 6) + (15 - 6)) = 591.6 mm

Outer Normal Limit of reinforcement per UG-40 LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)

= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm

Nozzle required thickness per UG-27(c)(1) trn = P*Rn / (Sn*E - 0.6*P)

= 9.4157*295.8 / (1,180*1 - 0.6*9.4157) = 2.37 mm

V-8601 105

Required thickness tr from UG-37(a) tr = P*R / (S*E - 0.6*P)

= 9.4157*1,001 / (1,180*1 - 0.6*9.4157) = 8.03 mm

Required thickness tr in longitudinal direction (windward) tr = P*R / (2*S*Ks + 0.4*P) - 0.6*W / (2*π*Rm*S*Ks) * 98.0665 + M / (π*Rm

2*S*Ks) * 98066.5

= |9.4157*1,001 / (2*1,180*1.2 + 0.4*9.4157) - 0.6*2,680.45 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 1,178.4 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.33 mm

Required thickness tr in longitudinal direction (leeward) tr = P*R / (2*S*Ks + 0.4*P) - W / (2*π*Rm*S*Ks) * 98.0665 - M / (π*Rm

2*S*Ks) * 98066.5

= |9.4157*1,001 / (2*1,180*1.2 + 0.4*9.4157) - 2,680.45 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 1,178.4 / (π*1,005.52*1,180*1.2) *

98066.5| = 3.27 mm

Area required per UG-37(c) Allowable stresses: Sn = 1,203.264, Sv = 1,203.264, Sp = 1,203.264 kgf/cm2 fr1 = lesser of 1 or Sn / Sv = 1 fr2 = lesser of 1 or Sn / Sv = 1 fr3 = lesser of fr2 or Sp / Sv = 1 fr4 = lesser of 1 or Sp / Sv = 1 A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= (591.6*8.03*1 + 2*9*8.03*1*(1 - 1)) / 100= 47.4812 cm2

Area available from FIG. UG-37.1 A1 = larger of the following= 5.7658 cm2

= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (591.6*(1*9 - 1*8.03) - 2*9*(1*9 - 1*8.03)*(1 - 1)) / 100= 5.7658 cm2

= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (2*(9 + 9)*(1*9 - 1*8.03) - 2*9*(1*9 - 1*8.03)*(1 - 1)) / 100= 0.351 cm2

A2 = smaller of the following= 2.9826 cm2

= 5*(tn - trn)*fr2*t = (5*(9 - 2.37)*1*9) / 100 = 2.9826 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 2.37)*(2.5*9 + 15)*1) / 100 = 4.971 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2

(Part of the weld is outside of the limits) A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

V-8601 106

A5 = (Dp - d - 2*tn)*te*fr4

= ((850 - 591.6 - 2*9)*15*1) / 100 = 36.06 cm2

Area = A1 + A2 + A41 + A42 + A5

= 5.7658 + 2.9826 + 1.2374 + 1.44 + 36.06= 47.4858 cm2

As Area >= A the reinforcement is adequate. UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 9 mm

tc(min) = lesser of 6 mm or 0.7*tmin = 6 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm

Outer fillet: tmin = lesser of 19 mm or te or t = 9 mm

tw(min) = 0.5*tmin = 4.5 mm tw(actual) = 0.7*Leg = 0.7*12 = 8.4 mm

UG-45 Nozzle Neck Thickness Check ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 9.4157*295.8 / (1,180*1 - 0.6*9.4157) + 6= 8.37 mm

ta = max[ ta UG-27 , ta UG-22 ]

= max[ 8.37 , 0 ]= 8.37 mm

tb1 = P*R / (S*E - 0.6*P) + Corrosion

= 9.4157*1,001 / (1,180*1 - 0.6*9.4157) + 6= 14.03 mm

tb1 = max[ tb1 , tb UG16 ]

= max[ 14.03 , 7.5 ] = 14.03 mm

tb = min[ tb3 , tb1 ]

= min[ 14.33 , 14.03 ] = 14.03 mm

tUG-45 = max[ ta , tb ]

= max[ 8.37 , 14.03 ] = 14.03 mm

Available nozzle wall thickness new, tn = 15 mm The nozzle neck thickness is adequate.

V-8601 107

Allowable stresses in joints UG-45 and UW-15(c) Groove weld in tension: 0.74*1,203.264 = 890.415 kgf/cm2

Nozzle wall in shear: 0.7*1,203.264 = 842.285 kgf/cm2

Inner fillet weld in shear: 0.49*1,203.264 = 589.599 kgf/cm2

Outer fillet weld in shear: 0.49*1,203.264 = 589.599 kgf/cm2

Upper groove weld in tension: 0.74*1,203.264 = 890.415 kgf/cm2

Strength of welded joints: (1) Inner fillet weld in shear (π / 2)*Nozzle OD*Leg*Si = (π / 2)*609.6*12*589.599 = 67,749.1 kgf (2) Outer fillet weld in shear (π / 2)*Pad OD*Leg*So = (π / 2)*850*12*589.599 = 94,466.43 kgf (3) Nozzle wall in shear (π / 2)*Mean nozzle dia*tn*Sn = (π / 2)*600.6*9*842.285 = 71,516.64 kgf (4) Groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*609.6*9*890.415 = 76,740.66 kgf (6) Upper groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*609.6*15*890.415 = 127,893.71 kgf Loading on welds per UG-41(b)(1) W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (4,748.1177 - 576.5795 + 2*9*1*(1*9 - 1*8.03))*1,203.264= 50,405.76 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (298.2575 + 3,606 + 123.7417 + 143.9997)*1,203.264= 50,200.21 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (298.2575 + 0 + 123.7417 + 0 + 2*9*9*1)*1,203.264= 7,027.17 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (298.2575 + 0 + 3,606 + 123.7417 + 143.9997 + 0 + 2*9*9*1)*1,203.264= 52,149.61 kgf

Load for path 1-1 lesser of W or W1-1 = 50,200.21 kgf Path 1-1 through (2) & (3) = 94,466.43 + 71,516.64 = 165,983.07 kgf Path 1-1 is stronger than W1-1 so it is acceptable per UG-41(b)(1). Load for path 2-2 lesser of W or W2-2 = 7,027.17 kgf Path 2-2 through (1), (4), (6) = 67,749.1 + 76,740.66 + 127,893.71 = 272,383.47 kgf Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1). Load for path 3-3 lesser of W or W3-3 = 50,405.76 kgf Path 3-3 through (2), (4) = 94,466.43 + 76,740.66 = 171,207.09 kgf Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).

V-8601 108


= (50*15 / 297.3)*(1 - 297.3 / ?) = 2.5227%

The extreme fiber elongation does not exceed 5%. Reinforcement Calculations for MAP Available reinforcement per UG-37 governs the MAP of this nozzle.




A required


A welds treq tmin

67.2935 67.3006 19.6464 8.7142 -- 36.06 2.88 8.33 15


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

58,556 57,341 212,470 17,633 323,537 62,755 222,360







Calculations for internal pressure 13.67 bar @ 25 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(579.6, 289.8 + (15 - 0) + (15 - 0)) = 579.6 mm


= MIN(2.5*(15 - 0), 2.5*(15 - 0) + 15) = 37.5 mm


= 13.6734*289.8 / (1,180*1 - 0.6*13.6734)= 3.38 mm


= 13.6734*995 / (1,180*1 - 0.6*13.6734) = 11.61 mm

V-8601 109


2*S*Ks) * 98066.5

= |13.6734*995 / (2*1,180*1.2 + 0.4*13.6734) - 0.6*3,410 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 2,774.8 /

(π*1,002.52*1,180*1.2) * 98066.5| = 4.83 mm


2*S*Ks) * 98066.5

= |13.6734*995 / (2*1,180*1.2 + 0.4*13.6734) - 3,410 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 2,774.8 / (π*1,002.52*1,180*1.2) *

98066.5| = 4.7 mm


= (579.6*11.61*1 + 2*15*11.61*1*(1 - 1)) / 100= 67.2935 cm2





= 5*(tn - trn)*fr2*t = (5*(15 - 3.38)*1*15) / 100 = 8.7142 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(15 - 3.38)*(2.5*15 + 15)*1) / 100 = 12.2 cm2

A41 = Leg2*fr3

= (122*1) / 100 = 1.44 cm2

A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((850 - 579.6 - 2*15)*15*1) / 100 = 36.06 cm2

V-8601 110

Area = A1 + A2 + A41 + A42 + A5

= 19.6464 + 8.7142 + 1.44 + 1.44 + 36.06 = 67.3006 cm2






= 13.6734*289.8 / (1,180*1 - 0.6*13.6734) + 0= 3.38 mm


= max[ 3.38 , 0 ]= 3.38 mm


= 13.6734*995 / (1,180*1 - 0.6*13.6734) + 0= 11.61 mm


= max[ 11.61 , 1.5 ] = 11.61 mm


= min[ 8.33 , 11.61 ] = 8.33 mm


= max[ 3.38 , 8.33 ] = 8.33 mm

Available nozzle wall thickness new, tn = 15 mm The nozzle neck thickness is adequate. Allowable stresses in joints UG-45 and UW-15(c) Groove weld in tension: 0.74*1,203.264 = 890.415 kgf/cm2





V-8601 111


= (6,729.3531 - 1,964.6412 + 2*15*1*(1*15 - 1*11.61))*1,203.264= 58,555.72 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (871.4176 + 3,606 + 143.9997 + 143.9997)*1,203.264= 57,340.61 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (871.4176 + 0 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 17,632.86 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (871.4176 + 0 + 3,606 + 143.9997 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 62,755.3 kgf


V-8601 112

Reinforcement Calculations for External Pressure

UG-37 Area Calculation Summary (cm2) For Pe = 1.37 bar @ 150 °C



A required


A welds treq tmin

26.6234 41.9974 -- 3.26 -- 36.06 2.6774 7.76 15

UG-41 Weld Failure Path Analysis Summary

Weld strength calculations are not required for external pressure







Calculations for external pressure 1.37 bar @ 150 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(591.6, 295.8 + (15 - 6) + (15 - 6)) = 591.6 mm


= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm

Nozzle required thickness per UG-28 trn = 1.76 mm From UG-37(d)(1) required thickness tr = 9 mm Required thickness tr in longitudinal direction (windward) tr = -P*R / (2*S*Ks + 0.4*P) - 0.6*W / (2*π*Rm*S*Ks) * 98.0665 + M / (π*Rm

2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*2,680.45 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 1,178.4 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.64 mm

Required thickness tr in longitudinal direction (leeward) tr = -P*R / (2*S*Ks + 0.4*P) - W / (2*π*Rm*S*Ks) * 98.0665 - M / (π*Rm

2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 2,680.45 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 1,178.4 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.73 mm

V-8601 113

Area required per UG-37(d)(1) Allowable stresses: Sn = 1,203.264, Sv = 1,203.264, Sp = 1,203.264 kgf/cm2 fr1 = lesser of 1 or Sn / Sv = 1 fr2 = lesser of 1 or Sn / Sv = 1 fr3 = lesser of fr2 or Sp / Sv = 1 fr4 = lesser of 1 or Sp / Sv = 1 A = 0.5*(d*tr*F + 2*tn*tr*F*(1 - fr1))

= (0.5*(591.6*9*1 + 2*9*9*1*(1 - 1))) / 100= 26.6234 cm2

Area available from FIG. UG-37.1 A1 = larger of the following= 0 cm2

= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (591.6*(1*9 - 1*9) - 2*9*(1*9 - 1*9)*(1 - 1)) / 100= 0 cm2

= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (2*(9 + 9)*(1*9 - 1*9) - 2*9*(1*9 - 1*9)*(1 - 1)) / 100= 0 cm2


= 5*(tn - trn)*fr2*t = (5*(9 - 1.76)*1*9) / 100 = 3.26 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 1.76)*(2.5*9 + 15)*1) / 100 = 5.4329 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((850 - 591.6 - 2*9)*15*1) / 100 = 36.06 cm2

Area = A1 + A2 + A41 + A42 + A5

= 0 + 3.26 + 1.2374 + 1.44 + 36.06 = 41.9974 cm2

As Area >= A the reinforcement is adequate.

V-8601 114

UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 9 mm




UG-45 Nozzle Neck Thickness Check ta UG-28 = 7.76 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 7.76 , 0 ]= 7.76 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 14.33 , 7.5 ] = 7.5 mm


= max[ 7.76 , 7.5 ] = 7.76 mm

Available nozzle wall thickness new, tn = 15 mm The nozzle neck thickness is adequate. External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 367.09 / 609.6 = 0.6022 Do / t = 609.6 / 1.76 = 347.0477From table G: A = 0.000360 From table CS-2 Metric: B = 363.5361 kg/cm2 (356.51 bar)Pa = 4*B / (3*(Do / t))

= 4*356.51 / (3*(609.6 / 1.76)) = 1.37 bar


V-8601 115

Manway (A2) ASME Section VIII Division 1, 2010 Edition Metric






Pad diameter: 850 mm Flange description: NPS 24 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3232) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.6391 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C Gasket Description: Flexitallic Spiral Wound CG 316L S.S.PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 180° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 700 mm End of nozzle to shell center: 1,330 mm Nozzle inside diameter, new: 579.6 mm Nozzle nominal wall thickness: 15 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 167.6 mm Projection available outside vessel to flange face, Lf: 320 mm Pad is split: No

V-8601 116

Reinforcement Calculations for Internal Pressure Available reinforcement per UG-37 governs the MAWP of this nozzle.




A required


A welds treq tmin

47.4812 47.4858 5.7658 2.9826 -- 36.06 2.6774 14.03 15


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

50,406 50,200 165,983 7,027 272,383 52,150 171,207







Calculations for internal pressure 9.42 bar @ 150 °C Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.1778). Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 23 °C, (coincident ratio = 0.6016) Rated MDMT of -85.13°C is limited to -48°C by UCS-66(b)(2). Nozzle UCS-66 governing thk: 15 mm Nozzle rated MDMT: -105 °C Pad UCS-66 governing thickness: 15 mm Pad rated MDMT: -48 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(591.6, 295.8 + (15 - 6) + (15 - 6)) = 591.6 mm


= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm


= 9.4157*295.8 / (1,180*1 - 0.6*9.4157) = 2.37 mm

V-8601 117


= 9.4157*1,001 / (1,180*1 - 0.6*9.4157) = 8.03 mm


2*S*Ks) * 98066.5

= |9.4157*1,001 / (2*1,180*1.2 + 0.4*9.4157) - 0.6*13,226.04 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 7,964.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.41 mm


2*S*Ks) * 98066.5

= |9.4157*1,001 / (2*1,180*1.2 + 0.4*9.4157) - 13,226.04 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 7,964.8 / (π*1,005.52*1,180*1.2)

* 98066.5| = 3.01 mm


= (591.6*8.03*1 + 2*9*8.03*1*(1 - 1)) / 100= 47.4812 cm2





= 5*(tn - trn)*fr2*t = (5*(9 - 2.37)*1*9) / 100 = 2.9826 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 2.37)*(2.5*9 + 15)*1) / 100 = 4.971 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


= (122*1) / 100 = 1.44 cm2

V-8601 118

A5 = (Dp - d - 2*tn)*te*fr4

= ((850 - 591.6 - 2*9)*15*1) / 100 = 36.06 cm2

Area = A1 + A2 + A41 + A42 + A5

= 5.7658 + 2.9826 + 1.2374 + 1.44 + 36.06= 47.4858 cm2






= 9.4157*295.8 / (1,180*1 - 0.6*9.4157) + 6= 8.37 mm


= max[ 8.37 , 0 ]= 8.37 mm


= 9.4157*1,001 / (1,180*1 - 0.6*9.4157) + 6= 14.03 mm


= max[ 14.03 , 7.5 ] = 14.03 mm


= min[ 14.33 , 14.03 ] = 14.03 mm


= max[ 8.37 , 14.03 ] = 14.03 mm


V-8601 119







= (4,748.1177 - 576.5795 + 2*9*1*(1*9 - 1*8.03))*1,203.264= 50,405.76 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (298.2575 + 3,606 + 123.7417 + 143.9997)*1,203.264= 50,200.21 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (298.2575 + 0 + 123.7417 + 0 + 2*9*9*1)*1,203.264= 7,027.17 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (298.2575 + 0 + 3,606 + 123.7417 + 143.9997 + 0 + 2*9*9*1)*1,203.264= 52,149.61 kgf


V-8601 120


= (50*15 / 297.3)*(1 - 297.3 / ?) = 2.5227%





A required


A welds treq tmin

67.2935 67.3006 19.6464 8.7142 -- 36.06 2.88 8.33 15


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

58,556 57,341 212,470 17,633 323,537 62,755 222,360








= MAX(579.6, 289.8 + (15 - 0) + (15 - 0)) = 579.6 mm


= MIN(2.5*(15 - 0), 2.5*(15 - 0) + 15) = 37.5 mm


= 13.6734*289.8 / (1,180*1 - 0.6*13.6734)= 3.38 mm


= 13.6734*995 / (1,180*1 - 0.6*13.6734) = 11.61 mm

V-8601 121


2*S*Ks) * 98066.5

= |13.6734*995 / (2*1,180*1.2 + 0.4*13.6734) - 0.6*15,184.94 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 20,339.3 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.14 mm


2*S*Ks) * 98066.5

= |13.6734*995 / (2*1,180*1.2 + 0.4*13.6734) - 15,184.94 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 20,339.3 /

(π*1,002.52*1,180*1.2) * 98066.5| = 4.18 mm


= (579.6*11.61*1 + 2*15*11.61*1*(1 - 1)) / 100= 67.2935 cm2





= 5*(tn - trn)*fr2*t = (5*(15 - 3.38)*1*15) / 100 = 8.7142 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(15 - 3.38)*(2.5*15 + 15)*1) / 100 = 12.2 cm2

A41 = Leg2*fr3

= (122*1) / 100 = 1.44 cm2

A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((850 - 579.6 - 2*15)*15*1) / 100 = 36.06 cm2

V-8601 122

Area = A1 + A2 + A41 + A42 + A5

= 19.6464 + 8.7142 + 1.44 + 1.44 + 36.06 = 67.3006 cm2






= 13.6734*289.8 / (1,180*1 - 0.6*13.6734) + 0= 3.38 mm


= max[ 3.38 , 0 ]= 3.38 mm


= 13.6734*995 / (1,180*1 - 0.6*13.6734) + 0= 11.61 mm


= max[ 11.61 , 1.5 ] = 11.61 mm


= min[ 8.33 , 11.61 ] = 8.33 mm


= max[ 3.38 , 8.33 ] = 8.33 mm






V-8601 123


= (6,729.3531 - 1,964.6412 + 2*15*1*(1*15 - 1*11.61))*1,203.264= 58,555.72 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (871.4176 + 3,606 + 143.9997 + 143.9997)*1,203.264= 57,340.61 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (871.4176 + 0 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 17,632.86 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (871.4176 + 0 + 3,606 + 143.9997 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 62,755.3 kgf


V-8601 124





A required


A welds treq tmin

26.6234 41.9974 -- 3.26 -- 36.06 2.6774 7.76 15










= MAX(591.6, 295.8 + (15 - 6) + (15 - 6)) = 591.6 mm


= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,226.04 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 7,964.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.54 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,226.04 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 7,964.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.08 mm

V-8601 125


= (0.5*(591.6*9*1 + 2*9*9*1*(1 - 1))) / 100= 26.6234 cm2





= 5*(tn - trn)*fr2*t = (5*(9 - 1.76)*1*9) / 100 = 3.26 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 1.76)*(2.5*9 + 15)*1) / 100 = 5.4329 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((850 - 591.6 - 2*9)*15*1) / 100 = 36.06 cm2

Area = A1 + A2 + A41 + A42 + A5

= 0 + 3.26 + 1.2374 + 1.44 + 36.06 = 41.9974 cm2


V-8601 126






= max[ 7.76 , 0 ]= 7.76 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 14.33 , 7.5 ] = 7.5 mm


= max[ 7.76 , 7.5 ] = 7.76 mm


= 4*356.51 / (3*(609.6 / 1.76)) = 1.37 bar


V-8601 127

Packing Unloading (H1) ASME Section VIII Division 1, 2010 Edition Metric



Nozzle material specification: SA-106 B Smls. Pipe (II-D Metric p. 10, ln. 40) (normalized)

Nozzle longitudinal joint efficiency: 1 Pad material specification: SA-516 60 (II-D Metric p. 10, ln. 27) (normalized) Pad diameter: 425 mm Flange description: NPS 12 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3143) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.465 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 270° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 2,500 mm End of nozzle to shell center: 1,305 mm Nozzle inside diameter, new: 288.89 mm Nozzle nominal wall thickness: 15 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 180.7 mm Projection available outside vessel to flange face, Lf: 295 mm Pad is split: No

V-8601 128

Reinforcement Calculations for Internal Pressure The thickness requirements of UG-45 govern the MAWP of this nozzle.




A required


A welds treq tmin

21.4398 27.8036 5.6419 3.5677 -- 15.9165 2.6774 13.12 13.13


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

19,415 26,666 84,133 7,731 142,487 28,616 87,377







Calculations for internal pressure 8.36 bar @ 150 °C Fig UCS-66.2 general note (1) applies. Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.1108). Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 24.3 °C, (coincident ratio = 0.5837) Rated MDMT of -86.43°C is limited to -48°C by UCS-66(b)(2). Nozzle UCS-66 governing thk: 13.13 mm Nozzle rated MDMT: -105 °C Pad UCS-66 governing thickness: 15 mm Pad rated MDMT: -48 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(300.89, 150.45 + (15 - 6) + (15 - 6))= 300.89 mm


= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm


= 8.3641*150.45 / (1,180*1 - 0.6*8.3641) = 1.07 mm

V-8601 129


= 8.3641*1,001 / (1,180*1 - 0.6*8.3641) = 7.13 mm


2*S*Ks) * 98066.5

= |8.3641*1,001 / (2*1,180*1.2 + 0.4*8.3641) - 0.6*10,300.77 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 4,238.1 /

(π*1,005.52*1,180*1.2) * 98066.5| = 2.98 mm


2*S*Ks) * 98066.5

= |8.3641*1,001 / (2*1,180*1.2 + 0.4*8.3641) - 10,300.77 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 4,238.1 / (π*1,005.52*1,180*1.2)

* 98066.5| = 2.75 mm


= (300.89*7.13*1 + 2*9*7.13*1*(1 - 1)) / 100= 21.4398 cm2





= 5*(tn - trn)*fr2*t = (5*(9 - 1.07)*1*9) / 100 = 3.5677 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 1.07)*(2.5*9 + 15)*1) / 100 = 5.9458 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2

(Part of the weld is outside of the limits)

V-8601 130

A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((425 - 300.89 - 2*9)*15*1) / 100 = 15.9165 cm2

Area = A1 + A2 + A41 + A42 + A5

= 5.6419 + 3.5677 + 1.2374 + 1.44 + 15.9165= 27.8036 cm2






= 8.3641*150.45 / (1,180*1 - 0.6*8.3641) + 6= 7.07 mm


= max[ 7.07 , 0 ]= 7.07 mm


= 8.3641*1,001 / (1,180*1 - 0.6*8.3641) + 6= 13.12 mm


= max[ 13.12 , 7.5 ] = 13.12 mm


= min[ 14.33 , 13.12 ] = 13.12 mm


= max[ 7.07 , 13.12 ] = 13.12 mm

Available nozzle wall thickness new, tn = 0.875*15 = 13.13 mm The nozzle neck thickness is adequate.

V-8601 131







= (2,143.9803 - 564.1924 + 2*9*1*(1*9 - 1*7.13))*1,203.264= 19,415.15 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (356.7735 + 1,591.65 + 123.7417 + 143.9997)*1,203.264= 26,666.34 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (356.7735 + 0 + 123.7417 + 0 + 2*9*9*1)*1,203.264= 7,731.27 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (356.7735 + 0 + 1,591.65 + 123.7417 + 143.9997 + 0 + 2*9*9*1)*1,203.264= 28,615.74 kgf

Load for path 1-1 lesser of W or W1-1 = 19,415.15 kgf Path 1-1 through (2) & (3) = 47,233.21 + 36,900.25 = 84,133.47 kgf Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2). Load for path 2-2 lesser of W or W2-2 = 7,731.27 kgf Path 2-2 through (1), (4), (6) = 35,440.47 + 40,144.08 + 66,902.93 = 142,487.47 kgf Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1). Load for path 3-3 lesser of W or W3-3 = 19,415.15 kgf Path 3-3 through (2), (4) = 47,233.21 + 40,144.08 = 87,377.29 kgf Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).

V-8601 132

Reinforcement Calculations for MAP Available reinforcement per UG-37 governs the MAP of this nozzle.




A required


A welds treq tmin

36.0118 36.0119 7.3219 9.8935 -- 15.9165 2.88 8.33 13.13


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

35,436 34,522 107,543 19,052 169,246 39,936 114,136








= MAX(288.89, 144.45 + (15 - 0) + (15 - 0))= 288.89 mm


= MIN(2.5*(15 - 0), 2.5*(15 - 0) + 15) = 37.5 mm


= 14.673*144.45 / (1,180*1 - 0.6*14.673) = 1.81 mm


= 14.673*995 / (1,180*1 - 0.6*14.673) = 12.47 mm


2*S*Ks) * 98066.5

= |14.673*995 / (2*1,180*1.2 + 0.4*14.673) - 0.6*11,717.94 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 10,875.3 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.31 mm

V-8601 133


2*S*Ks) * 98066.5

= |14.673*995 / (2*1,180*1.2 + 0.4*14.673) - 11,717.94 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 10,875.3 / (π*1,002.52*1,180*1.2)

* 98066.5| = 4.78 mm


= (288.89*12.47*1 + 2*15*12.47*1*(1 - 1)) / 100= 36.0118 cm2





= 5*(tn - trn)*fr2*t = (5*(15 - 1.81)*1*15) / 100 = 9.8935 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(15 - 1.81)*(2.5*15 + 15)*1) / 100 = 13.8509 cm2

A41 = Leg2*fr3

= (122*1) / 100 = 1.44 cm2

A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((425 - 288.89 - 2*15)*15*1) / 100 = 15.9165 cm2

Area = A1 + A2 + A41 + A42 + A5

= 7.3219 + 9.8935 + 1.44 + 1.44 + 15.9165= 36.0119 cm2


V-8601 134






= 14.673*144.45 / (1,180*1 - 0.6*14.673) + 0= 1.81 mm


= max[ 1.81 , 0 ]= 1.81 mm


= 14.673*995 / (1,180*1 - 0.6*14.673) + 0= 12.47 mm


= max[ 12.47 , 1.5 ] = 12.47 mm


= min[ 8.33 , 12.47 ] = 8.33 mm


= max[ 1.81 , 8.33 ] = 8.33 mm

Available nozzle wall thickness new, tn = 0.875*15 = 13.13 mm The nozzle neck thickness is adequate. Allowable stresses in joints UG-45 and UW-15(c) Groove weld in tension: 0.74*1,203.264 = 890.415 kgf/cm2





V-8601 135


= (3,601.1751 - 732.1921 + 2*15*1*(1*15 - 1*12.47))*1,203.264= 35,436.36 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (989.3529 + 1,591.65 + 143.9997 + 143.9997)*1,203.264= 34,521.71 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (989.3529 + 0 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 19,051.93 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (989.3529 + 0 + 1,591.65 + 143.9997 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 39,936.4 kgf


V-8601 136





A required


A welds treq tmin

13.5408 22.1365 -- 3.5426 -- 15.9165 2.6774 7.5 13.13










= MAX(300.89, 150.45 + (15 - 6) + (15 - 6))= 300.89 mm


= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*10,300.77 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 4,238.1 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.62 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 10,300.77 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 4,238.1 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.93 mm

V-8601 137


= (0.5*(300.89*9*1 + 2*9*9*1*(1 - 1))) / 100= 13.5408 cm2





= 5*(tn - trn)*fr2*t = (5*(9 - 1.13)*1*9) / 100 = 3.5426 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 1.13)*(2.5*9 + 15)*1) / 100 = 5.9032 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((425 - 300.89 - 2*9)*15*1) / 100 = 15.9165 cm2

Area = A1 + A2 + A41 + A42 + A5

= 0 + 3.5426 + 1.2374 + 1.44 + 15.9165 = 22.1365 cm2


V-8601 138






= max[ 7.13 , 0 ]= 7.13 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 14.33 , 7.5 ] = 7.5 mm


= max[ 7.13 , 7.5 ] = 7.5 mm

Available nozzle wall thickness new, tn = 0.875*15 = 13.13 mm The nozzle neck thickness is adequate. External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 307.66 / 318.89 = 0.9648 Do / t = 318.89 / 1.13 = 282.5223From table G: A = 0.000293 From table CS-2 Metric: B = 295.9459 kg/cm2 (290.22 bar)Pa = 4*B / (3*(Do / t))

= 4*290.22 / (3*(318.89 / 1.13)) = 1.37 bar


V-8601 139

Level Gauge (LG) (K1A) ASME Section VIII Division 1, 2010 Edition Metric

tw(lower) = 15 mm Leg41 = 9 mm

Note: round inside edges per UG-76(c) Located on: Shell Liquid static head included: 0.5297 bar Nozzle material specification: SA-106 B Smls. Pipe (II-D Metric p. 10, ln. 40) Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 2 XX Heavy DN 50 Flange description: NPS 2 Class 300 WN A105

Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32)

Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.1218) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.5279 bar ASME B16.5-2003 flange rating MAWP: 45.1 bar @ 150°C ASME B16.5-2003 flange rating MAP: 51.1 bar @ 25°C ASME B16.5-2003 flange hydro test: 77 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 15° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 1,850 mm End of nozzle to shell center: 1,255 mm Nozzle inside diameter, new: 38.18 mm Nozzle nominal wall thickness: 11.07 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 175.15 mm Projection available outside vessel to flange face, Lf: 245 mm

V-8601 140

Reinforcement Calculations for Internal Pressure The vessel wall thickness governs the MAWP of this nozzle.



A required


A welds treq tmin

This nozzle is exempt from area calculations per UG-36(c)(3)(a) 9.42 9.69


The nozzle is exempt from weld strength calculations per UW-15(b)(2)


Weld description Required weld throat size (mm)

Actual weld throat size (mm) Status

Nozzle to shell fillet (Leg41) 3.55 6.3 weld size is adequate

Calculations for internal pressure 10.55 bar @ 150 °C Fig UCS-66.2 general note (1) applies. Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.036). Nozzle UCS-66 governing thk: 9.69 mm Nozzle rated MDMT: -105 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm


= 10.5527*25.09 / (1,180*1 - 0.6*10.5527)= 0.23 mm


= 10.5527*1,001 / (1,180*1 - 0.6*10.5527)= 9 mm


2*S*Ks) * 98066.5

= |10.5527*1,001 / (2*1,180*1.2 + 0.4*10.5527) - 0.6*11,703.52 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 5,388.9 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.76 mm

V-8601 141


2*S*Ks) * 98066.5

= |10.5527*1,001 / (2*1,180*1.2 + 0.4*10.5527) - 11,703.52 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 5,388.9 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.48 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.55 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 10.5527*25.09 / (1,180*1 - 0.6*10.5527) + 6= 6.23 mm


= max[ 6.23 , 0 ]= 6.23 mm


= 10.5527*1,001 / (1,180*1 - 0.6*10.5527) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.42 , 15 ] = 9.42 mm


= max[ 6.23 , 9.42 ] = 9.42 mm

Available nozzle wall thickness new, tn = 0.875*11.07 = 9.69 mm The nozzle neck thickness is adequate.

V-8601 142

Reinforcement Calculations for MAP The vessel wall thickness governs the MAP of this nozzle.



A required


A welds treq tmin







Nozzle to shell fillet (Leg41) 6 6.3 weld size is adequate


= MAX(38.18, 19.09 + (11.07 - 0) + (15 - 0))= 45.16 mm


= MIN(2.5*(15 - 0), 2.5*(11.07 - 0) + 0) = 27.69 mm


= 17.6294*19.09 / (1,180*1 - 0.6*17.6294)= 0.29 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*13,313.96 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 14,059.7 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.4 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 13,313.96 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 14,059.7 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.72 mm

V-8601 143

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 11.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 6 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 17.6294*19.09 / (1,180*1 - 0.6*17.6294) + 0= 0.29 mm


= max[ 0.29 , 0 ]= 0.29 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.42 , 15 ] = 3.42 mm


= max[ 0.29 , 3.42 ] = 3.42 mm


V-8601 144




A required


A welds treq tmin









= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*11,703.52 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 5,388.9 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.6 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 11,703.52 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 5,388.9 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.99 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.55 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).

V-8601 145


= max[ 6.39 , 0 ]= 6.39 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.42 , 7.5 ] = 7.5 mm


= max[ 6.39 , 7.5 ] = 7.5 mm

Available nozzle wall thickness new, tn = 0.875*11.07 = 9.69 mm The nozzle neck thickness is adequate. External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 245.45 / 60.32 = 4.0688 Do / t = 60.32 / 0.39 = 154.0723From table G: A = 0.000160 From table CS-2 Metric: B = 161.3873 kg/cm2 (158.27 bar)Pa = 4*B / (3*(Do / t))

= 4*158.27 / (3*(60.32 / 0.39)) = 1.37 bar


V-8601 146

Level Gauge (LG) (K1B) ASME Section VIII Division 1, 2010 Edition Metric


Note: round inside edges per UG-76(c) Located on: Shell Liquid static head included: 0.6796 bar Nozzle material specification: SA-106 B Smls. Pipe (II-D Metric p. 10, ln. 40) Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 2 XX Heavy DN 50 Flange description: NPS 2 Class 300 WN A105


Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.1247) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.6778 bar ASME B16.5-2003 flange rating MAWP: 45.1 bar @ 150°C ASME B16.5-2003 flange rating MAP: 51.1 bar @ 25°C ASME B16.5-2003 flange hydro test: 77 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 15° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 300 mm End of nozzle to shell center: 1,255 mm Nozzle inside diameter, new: 38.18 mm Nozzle nominal wall thickness: 11.07 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 175.15 mm Projection available outside vessel to flange face, Lf: 245 mm

V-8601 147




A required


A welds treq tmin









= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm


= 10.5528*25.09 / (1,180*1 - 0.6*10.5528)= 0.23 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528)= 9 mm


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 0.6*13,743.3 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 8,814.4 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.83 mm


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 13,743.3 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 8,814.4 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.38 mm

V-8601 148


= 10.5528*25.09 / (1,180*1 - 0.6*10.5528) + 6= 6.23 mm


= max[ 6.23 , 0 ]= 6.23 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.42 , 15 ] = 9.42 mm


= max[ 6.23 , 9.42 ] = 9.42 mm

Available nozzle wall thickness new, tn = 0.875*11.07 = 9.69 mm The nozzle neck thickness is adequate. Reinforcement Calculations for MAP The vessel wall thickness governs the MAP of this nozzle.



A required


A welds treq tmin








V-8601 149


= MAX(38.18, 19.09 + (11.07 - 0) + (15 - 0))= 45.16 mm


= MIN(2.5*(15 - 0), 2.5*(11.07 - 0) + 0) = 27.69 mm


= 17.6294*19.09 / (1,180*1 - 0.6*17.6294)= 0.29 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*15,832.83 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 22,477.1 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.57 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 15,832.83 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 22,477.1 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.51 mm


= 17.6294*19.09 / (1,180*1 - 0.6*17.6294) + 0= 0.29 mm


= max[ 0.29 , 0 ]= 0.29 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm

V-8601 150


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.42 , 15 ] = 3.42 mm


= max[ 0.29 , 3.42 ] = 3.42 mm

Available nozzle wall thickness new, tn = 0.875*11.07 = 9.69 mm The nozzle neck thickness is adequate. Reinforcement Calculations for External Pressure



A required


A welds treq tmin









= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,743.3 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 8,814.4 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.52 mm

V-8601 151


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,743.3 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 8,814.4 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.12 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.55 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-28 = 6.39 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.39 , 0 ]= 6.39 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.42 , 7.5 ] = 7.5 mm


= max[ 6.39 , 7.5 ] = 7.5 mm


= 4*158.27 / (3*(60.32 / 0.39)) = 1.37 bar


V-8601 152

Level Transmitter(LICA) (K2A) ASME Section VIII Division 1, 2010 Edition Metric


Note: round inside edges per UG-76(c) Located on: Shell Liquid static head included: 0.5533 bar Nozzle material specification: SA-106 B Smls. Pipe (II-D Metric p. 10, ln. 40) Nozzle longitudinal joint efficiency: 1 Flange description: NPS 1.5 Class 300 WN A105


Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.1222) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.552 bar ASME B16.5-2003 flange rating MAWP: 45.1 bar @ 150°C ASME B16.5-2003 flange rating MAP: 51.1 bar @ 25°C ASME B16.5-2003 flange hydro test: 77 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 300° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 1,600 mm End of nozzle to shell center: 1,255 mm Nozzle inside diameter, new: 26.26 mm Nozzle nominal wall thickness: 11 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 176.67 mm Projection available outside vessel to flange face, Lf: 245 mm

V-8601 153




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528)= 0.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528)= 9 mm


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 0.6*12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.77 mm

V-8601 154


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.47 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.5 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 10.5528*19.13 / (1,180*1 - 0.6*10.5528) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 155




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.42 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.69 mm

V-8601 156

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 11 mm tc(min) = lesser of 6 mm or 0.7*tmin = 6 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm

Available nozzle wall thickness new, tn = 0.875*11 = 9.63 mm The nozzle neck thickness is adequate. Reinforcement Calculations for External Pressure



A required


A welds treq tmin








V-8601 157


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.59 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.5 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-28 = 6.35 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 158


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 159

Level Transmitter(LICA) (K2B) ASME Section VIII Division 1, 2010 Edition Metric




Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.1243) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.6584 bar ASME B16.5-2003 flange rating MAWP: 45.1 bar @ 150°C ASME B16.5-2003 flange rating MAP: 51.1 bar @ 25°C ASME B16.5-2003 flange hydro test: 77 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 300° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 500 mm End of nozzle to shell center: 1,255 mm Nozzle inside diameter, new: 26.26 mm Nozzle nominal wall thickness: 11 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 176.67 mm Projection available outside vessel to flange face, Lf: 245 mm

V-8601 160




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532)= 0.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532)= 9 mm


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 0.6*13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.82 mm

V-8601 161


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.39 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 162




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.55 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.54 mm

V-8601 163


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm


V-8601 164




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.53 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.1 mm

V-8601 165


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 166

Level Transmitter(LZA) (K3A) ASME Section VIII Division 1, 2010 Edition Metric





V-8601 167




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528)= 0.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528)= 9 mm


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 0.6*12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.77 mm

V-8601 168


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.47 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 169




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.42 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.69 mm

V-8601 170


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm




A required


A welds treq tmin








V-8601 171


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.59 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1 mm


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 172


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 173

Level Transmitter(LZA) (K3B) ASME Section VIII Division 1, 2010 Edition Metric





V-8601 174




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532)= 0.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532)= 9 mm


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 0.6*13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.82 mm

V-8601 175


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.39 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 176




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.55 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.54 mm

V-8601 177


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm




A required


A welds treq tmin








V-8601 178


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.53 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.1 mm


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 179


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 180






V-8601 181




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528)= 0.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528)= 9 mm


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 0.6*12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.77 mm

V-8601 182


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.47 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 183




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.42 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.69 mm

V-8601 184


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm




A required


A welds treq tmin








V-8601 185


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.59 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1 mm


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 186


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 187






V-8601 188




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532)= 0.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532)= 9 mm


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 0.6*13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.82 mm

V-8601 189


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.39 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 190




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.55 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.54 mm

V-8601 191


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm




A required


A welds treq tmin








V-8601 192


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.53 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.1 mm


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 193


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 194






V-8601 195




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528)= 0.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528)= 9 mm


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 0.6*12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.77 mm

V-8601 196


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.47 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 197




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.42 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.69 mm

V-8601 198


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm




A required


A welds treq tmin








V-8601 199


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.59 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1 mm


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 200


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 201






V-8601 202




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532)= 0.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532)= 9 mm


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 0.6*13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.82 mm

V-8601 203


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.39 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 204




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.55 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.54 mm

V-8601 205


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm


V-8601 206




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.53 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.1 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.5 mm tc(actual) = 0.7*Leg = 0.7*9 = 6.3 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).

V-8601 207


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 208






V-8601 209




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528)= 0.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528)= 9 mm

V-8601 210


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 0.6*12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.77 mm


2*S*Ks) * 98066.5

= |10.5528*1,001 / (2*1,180*1.2 + 0.4*10.5528) - 12,015.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.47 mm


= 10.5528*19.13 / (1,180*1 - 0.6*10.5528) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5528*1,001 / (1,180*1 - 0.6*10.5528) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 211




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.42 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 13,705.18 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 15,333.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.69 mm

V-8601 212


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm




A required


A welds treq tmin








V-8601 213


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.59 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 12,015.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 5,857.6 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1 mm


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 214


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 215






V-8601 216




A required


A welds treq tmin









= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532)= 0.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532)= 9 mm


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 0.6*13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.82 mm

V-8601 217


2*S*Ks) * 98066.5

= |10.5532*1,001 / (2*1,180*1.2 + 0.4*10.5532) - 13,521.34 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.39 mm


= 10.5532*19.13 / (1,180*1 - 0.6*10.5532) + 6= 6.17 mm


= max[ 6.17 , 0 ]= 6.17 mm


= 10.5532*1,001 / (1,180*1 - 0.6*10.5532) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.22 , 15 ] = 9.22 mm


= max[ 6.17 , 9.22 ] = 9.22 mm


V-8601 218




A required


A welds treq tmin









= MAX(26.26, 13.13 + (11 - 0) + (15 - 0)) = 39.13 mm


= MIN(2.5*(15 - 0), 2.5*(11 - 0) + 0) = 27.5 mm


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294)= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.55 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 15,546.39 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 21,450.4 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.54 mm

V-8601 219


= 17.6294*13.13 / (1,180*1 - 0.6*17.6294) + 0= 0.2 mm


= max[ 0.2 , 0 ]= 0.2 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.22 , 15 ] = 3.22 mm


= max[ 0.2 , 3.22 ] = 3.22 mm




A required


A welds treq tmin








V-8601 220


= MAX(38.26, 19.13 + (11 - 6) + (15 - 6)) = 38.26 mm


= MIN(2.5*(15 - 6), 2.5*(11 - 6) + 0) = 12.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.53 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,521.34 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 8,431.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.1 mm


= max[ 6.35 , 0 ]= 6.35 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.22 , 7.5 ] = 7.5 mm

V-8601 221


= max[ 6.35 , 7.5 ] = 7.5 mm


= 4*143.66 / (3*(48.26 / 0.35)) = 1.37 bar


V-8601 222

Acid Gas Inlet (N1) ASME Section VIII Division 1, 2010 Edition Metric






Pad diameter: 460 mmFlange description: NPS 12 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3183) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.5443 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 270° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 1,680 mm End of nozzle to shell center: 1,305 mm Nozzle inside diameter, new: 288.89 mm Nozzle nominal wall thickness: 15 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 180.7 mm Projection available outside vessel to flange face, Lf: 295 mm Pad is split: No

V-8601 223

Reinforcement Calculations for Internal Pressure Local stresses at the pad edge per WRC-107 govern the MAWP of this nozzle.




A required


A welds treq tmin

16.012 38.6039 11.0697 3.6903 -- 21.1665 2.6774 11.32 15


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

6,744 33,131 88,023 7,879 142,487 35,080 91,267







Calculations for internal pressure 6.25 bar @ 150 °C Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.2447). External nozzle loadings per UG-22 govern the coincident ratio used. Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 23.7 °C, (coincident ratio = 0.5913) Rated MDMT of -85.83°C is limited to -48°C by UCS-66(b)(2). Nozzle UCS-66 governing thk: 15 mm Nozzle rated MDMT: -105 °C Pad UCS-66 governing thickness: 15 mm Pad rated MDMT: -48 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(300.89, 150.45 + (15 - 6) + (15 - 6))= 300.89 mm


= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm


= 6.2531*150.45 / (1,180*1 - 0.6*6.2531) = 0.8 mm

V-8601 224


= 6.2531*1,001 / (1,180*1 - 0.6*6.2531) = 5.32 mm


2*S*Ks) * 98066.5

= |6.2531*1,001 / (2*1,180*1.2 + 0.4*6.2531) - 0.6*11,910.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 5,708.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 2.25 mm


2*S*Ks) * 98066.5

= |6.2531*1,001 / (2*1,180*1.2 + 0.4*6.2531) - 11,910.51 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 5,708.8 / (π*1,005.52*1,180*1.2)

* 98066.5| = 1.95 mm


= (300.89*5.32*1 + 2*9*5.32*1*(1 - 1)) / 100= 16.012 cm2





= 5*(tn - trn)*fr2*t = (5*(9 - 0.8)*1*9) / 100 = 3.6903 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 0.8)*(2.5*9 + 15)*1) / 100 = 6.1497 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


V-8601 225

A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((460 - 300.89 - 2*9)*15*1) / 100 = 21.1665 cm2

Area = A1 + A2 + A41 + A42 + A5

= 11.0697 + 3.6903 + 1.2374 + 1.44 + 21.1665= 38.6039 cm2






= 6.2531*150.45 / (1,180*1 - 0.6*6.2531) + 6= 6.8 mm

ta UG-22 = 8.2 mm ta = max[ ta UG-27 , ta UG-22 ]

= max[ 6.8 , 8.2 ] = 8.2 mm


= 6.2531*1,001 / (1,180*1 - 0.6*6.2531) + 6= 11.32 mm


= max[ 11.32 , 7.5 ] = 11.32 mm


= min[ 14.33 , 11.32 ] = 11.32 mm


= max[ 8.2 , 11.32 ] = 11.32 mm


V-8601 226







= (1,601.2024 - 1,106.9655 + 2*9*1*(1*9 - 1*5.32))*1,203.264= 6,743.8 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (369.0315 + 2,116.65 + 123.7417 + 143.9997)*1,203.264= 33,130.98 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (369.0315 + 0 + 123.7417 + 0 + 2*9*9*1)*1,203.264= 7,878.77 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (369.0315 + 0 + 2,116.65 + 123.7417 + 143.9997 + 0 + 2*9*9*1)*1,203.264= 35,080.38 kgf

Load for path 1-1 lesser of W or W1-1 = 6,743.8 kgf Path 1-1 through (2) & (3) = 51,123.01 + 36,900.25 = 88,023.26 kgf Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2). Load for path 2-2 lesser of W or W2-2 = 6,743.8 kgf Path 2-2 through (1), (4), (6) = 35,440.47 + 40,144.08 + 66,902.93 = 142,487.48 kgf Path 2-2 is stronger than W so it is acceptable per UG-41(b)(2). Load for path 3-3 lesser of W or W3-3 = 6,743.8 kgf Path 3-3 through (2), (4) = 51,123.01 + 40,144.08 = 91,267.08 kgf Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).

V-8601 227

Applied Loads Radial load: Pr = 1,286.94 kgf Circumferential moment: Mc = 1,260 kgf-m Circumferential shear: Vc = 910 kgf Longitudinal moment: ML = 1,260 kgf-m Longitudinal shear: VL = 910 kgf Torsion moment: Mt = 1,781.9 kgf-m Internal pressure: P = 6.25 bar Mean shell radius: Rm = 1,005.5 mm Local shell thickness: t = 9 mm Shell yield stress: Sy = 1,988.45 kgf/cm2

Maximum stresses due to the applied loads at the pad edge (includes pressure) Rm / t = 1,005.5 / 9 = 111.7157 Pressure stress intensity factor, I = 1 (derived from PVP-Vol. 399, pages 77-82) Local circumferential pressure stress = I*P*Ri / t =709.186 kgf/cm2 Local longitudinal pressure stress = I*P*Ri / (2*t) =354.628 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 3,609.77 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,086.52 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

V-8601 228

Stresses at the pad edge per WRC Bulletin 107

Figure value β Au Al Bu Bl Cu Cl Du Dl

3C* 5.2655 0.2001 0 0 0 0 -74.877 -74.877 -74.877 -74.877

4C* 11.7795 0.2001 -167.541 -167.541 -167.541 -167.541 0 0 0 0

1C 0.06 0.2001 0 0 0 0 -571.876 571.876 -571.876 571.876

2C-1 0.0165 0.2001 -157.277 157.277 -157.277 157.277 0 0 0 0

3A* 3.6089 0.2001 0 0 0 0 -249.66 -249.66 249.66 249.66

1A 0.0572 0.2001 0 0 0 0 -2,652.468

2,652.468

2,652.468

-2,652.468

3B* 7.8758 0.2001 -544.878 -544.878 544.878 544.878 0 0 0 0

1B-1 0.0129 0.2001 -598.171 598.171 598.171 -598.171 0 0 0 0

Pressure stress* 709.186 709.186 709.186 709.186 709.186 709.186 709.186 709.186

Total circumferential stress -758.682 752.214 1,527.417 645.628

-2,839.696

3,608.994

2,964.561

-1,196.623

Primary membrane circumferential stress* -3.234 -3.234 1,086.52

3 1,086.523 384.649 384.649 883.969 883.969

3C* 5.2655 0.2001 -74.877 -74.877 -74.877 -74.877 0 0 0 0

4C* 11.7795 0.2001 0 0 0 0 -167.541 -167.541 -167.541 -167.541

1C-1 0.0398 0.2001 -379.376 379.376 -379.376 379.376 0 0 0 0

2C 0.034 0.2001 0 0 0 0 -324.115 324.115 -324.115 324.115

4A* 9.9374 0.2001 0 0 0 0 -687.461 -687.461 687.461 687.461

2A 0.0245 0.2001 0 0 0 0 -1,136.089

1,136.089

1,136.089

-1,136.089

4B* 3.6744 0.2001 -254.23 -254.23 254.23 254.23 0 0 0 0

2B-1 0.0173 0.2001 -802.202 802.202 802.202 -802.202 0 0 0 0

Pressure stress* 354.628 354.628 354.628 354.628 354.628 354.628 354.628 354.628

Total longitudinal stress -1,156.056

1,207.099 956.807 111.155

-1,960.578

959.83 1,686.522 62.573

Primary membrane longitudinal stress* 25.521 25.521 533.981 533.981 -500.374 -500.374 874.548 874.548

Shear from Mt 59.55 59.55 59.55 59.55 59.55 59.55 59.55 59.55

Circ shear from Vc 13.991 13.991 -13.991 -13.991 0 0 0 0

Long shear from VL 0 0 0 0 -13.991 -13.991 13.991 13.991

Total Shear stress 73.541 73.541 45.559 45.559 45.559 45.559 73.541 73.541

Combined stress (PL+Pb+Q) -1,169.204

1,218.7 1,531.003 649.495

-2,842.016

3,609.767

2,968.779

1,267.774

Note: * denotes primary stress.

V-8601 229

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Rm / t = 1,005.5 / 24 = 41.8949 Pressure stress intensity factor, I = 0.82027 (derived from PVP-Vol. 399, pages 77-82) Local circumferential pressure stress = I*P*Ri / t =581.719 kgf/cm2 Local longitudinal pressure stress = I*P*Ri / (2*t) =290.86 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 1,579.87 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 739.63 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

Stresses at the nozzle OD per WRC Bulletin 107


3C* 5.2994 0.1388 0 0 0 0 -28.263 -28.263 -28.263 -28.263

4C* 6.7081 0.1388 -35.786 -35.786 -35.786 -35.786 0 0 0 0

1C 0.097 0.1388 0 0 0 0 -129.997 129.997 -129.997 129.997

2C-1 0.0621 0.1388 -83.243 83.243 -83.243 83.243 0 0 0 0

3A* 1.5688 0.1388 0 0 0 0 -58.706 -58.706 58.706 58.706

1A 0.0878 0.1388 0 0 0 0 -825.965 825.965 825.965 -825.965

3B* 4.6716 0.1388 -174.853 -174.853 174.853 174.853 0 0 0 0

1B-1 0.0371 0.1388 -349.003 349.003 349.003 -349.003 0 0 0 0

Pressure stress* 581.719 581.719 581.719 581.719 709.186 709.186 709.186 709.186

Total circumferential stress -61.167 803.327 986.546 455.026 -333.747 1,578.179 1,435.597 43.661

Primary membrane circumferential stress* 371.08 371.08 720.786 720.786 622.216 622.216 739.629 739.629

3C* 5.2994 0.1388 -28.263 -28.263 -28.263 -28.263 0 0 0 0

4C* 6.7081 0.1388 0 0 0 0 -35.786 -35.786 -35.786 -35.786

1C-1 0.0993 0.1388 -133.091 133.091 -133.091 133.091 0 0 0 0

2C 0.0626 0.1388 0 0 0 0 -83.946 83.946 -83.946 83.946

4A* 2.586 0.1388 0 0 0 0 -96.813 -96.813 96.813 96.813

2A 0.047 0.1388 0 0 0 0 -442.16 442.16 442.16 -442.16

4B* 1.5463 0.1388 -57.863 -57.863 57.863 57.863 0 0 0 0

2B-1 0.0563 0.1388 -529.622 529.622 529.622 -529.622 0 0 0 0

Pressure stress* 354.628 354.628 354.628 354.628 290.86 290.86 290.86 290.86

Total longitudinal stress -394.211 931.215 780.758 -12.304 -367.846 684.367 710.1 -6.328

Primary membrane longitudinal stress* 268.502 268.502 384.227 384.227 158.261 158.261 351.886 351.886

Shear from Mt 46.473 46.473 46.473 46.473 46.473 46.473 46.473 46.473




Combined stress (PL+Pb+Q) -402.788 951.041 993.647 473.728 -393.226 1,579.866 1,439.604 119.1


V-8601 230

Longitudinal stress in the nozzle wall due to internal pressure + external loads σn (Pm) = P*Ri / (2*tn) - Pr / (π*(Ro

2 - Ri2)) + M*Ro / I

= 6.25*1.02*150.45 / (2*9) - 1,286.94 / (π*(159.452 - 150.452))*100 + 1,781,902.4*159.45 / 1.0527E+08*100 = 308.508 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Shear stress in the nozzle wall due to external loads σshear = (VL

2 + Vc2)0.5 / (π*Ri*tn)*100

= (9102 + 9102)0.5 / (π*150.45*9)*100 = 30.254 kgf/cm2 σtorsion = Mt / (2*π*Ri

2*tn)*100000 = 1,781.9 / (2*π*150.452*9)*100000 = 139.221 kgf/cm2 σtotal = σshear + σtorsion = 30.254 + 139.221 = 169.475 kgf/cm2 UG-45: The total combined shear stress (169.475 kgf/cm2) is below than the allowable (0.7*Sn = 0.7*1,203.264 = 842.285 kgf/cm2) % Extreme fiber elongation - UCS-79(d) EFE = (50*t / Rf)*(1 - Rf / Ro)

= (50*15 / 151.95)*(1 - 151.95 / ?) = 4.936%





A required


A welds treq tmin

38.5873 38.5897 4.7464 9.7968 -- 21.1665 2.88 8.33 15


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

41,313 40,722 111,433 18,935 169,246 46,137 118,026







V-8601 231


= MAX(288.89, 144.45 + (15 - 0) + (15 - 0))= 288.89 mm


= MIN(2.5*(15 - 0), 2.5*(15 - 0) + 15) = 37.5 mm


= 15.7139*144.45 / (1,180*1 - 0.6*15.7139)= 1.94 mm


= 15.7139*995 / (1,180*1 - 0.6*15.7139) = 13.36 mm


2*S*Ks) * 98066.5

= |15.7139*995 / (2*1,180*1.2 + 0.4*15.7139) - 0.6*13,573.72 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 14,927.2 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.75 mm


2*S*Ks) * 98066.5

= |15.7139*995 / (2*1,180*1.2 + 0.4*15.7139) - 13,573.72 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 14,927.2 /

(π*1,002.52*1,180*1.2) * 98066.5| = 5.03 mm


= (288.89*13.36*1 + 2*15*13.36*1*(1 - 1)) / 100= 38.5873 cm2




V-8601 232


= 5*(tn - trn)*fr2*t = (5*(15 - 1.94)*1*15) / 100 = 9.7968 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(15 - 1.94)*(2.5*15 + 15)*1) / 100 = 13.7148 cm2

A41 = Leg2*fr3

= (122*1) / 100 = 1.44 cm2

A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((460 - 288.89 - 2*15)*15*1) / 100 = 21.1665 cm2

Area = A1 + A2 + A41 + A42 + A5

= 4.7464 + 9.7968 + 1.44 + 1.44 + 21.1665= 38.5897 cm2






= 15.7139*144.45 / (1,180*1 - 0.6*15.7139) + 0= 1.94 mm


= max[ 1.94 , 2.84 ] = 2.84 mm


= 15.7139*995 / (1,180*1 - 0.6*15.7139) + 0= 13.36 mm


= max[ 13.36 , 1.5 ] = 13.36 mm

V-8601 233


= min[ 8.33 , 13.36 ] = 8.33 mm


= max[ 2.84 , 8.33 ] = 8.33 mm







= (3,858.732 - 474.6442 + 2*15*1*(1*15 - 1*13.36))*1,203.264= 41,312.61 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (979.6755 + 2,116.65 + 143.9997 + 143.9997)*1,203.264= 40,722.4 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (979.6755 + 0 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 18,935.49 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (979.6755 + 0 + 2,116.65 + 143.9997 + 143.9997 + 0 + 2*15*15*1)*1,203.264= 46,137.1 kgf

V-8601 234

Load for path 1-1 lesser of W or W1-1 = 40,722.4 kgf Path 1-1 through (2) & (3) = 51,123.01 + 60,309.67 = 111,432.68 kgf Path 1-1 is stronger than W1-1 so it is acceptable per UG-41(b)(1). Load for path 2-2 lesser of W or W2-2 = 18,935.49 kgf Path 2-2 through (1), (4), (6) = 35,440.47 + 66,902.93 + 66,902.93 = 169,246.33 kgf Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1). Load for path 3-3 lesser of W or W3-3 = 41,312.61 kgf Path 3-3 through (2), (4) = 51,123.01 + 66,902.93 = 118,025.94 kgf Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2). Reinforcement Calculations for External Pressure




A required


A welds treq tmin

13.5408 27.3865 -- 3.5426 -- 21.1665 2.6774 8.09 15










= MAX(300.89, 150.45 + (15 - 6) + (15 - 6))= 300.89 mm


= MIN(2.5*(15 - 6), 2.5*(15 - 6) + 15) = 22.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*11,910.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 5,708.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.59 mm

V-8601 235


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 11,910.51 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 5,708.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1 mm


= (0.5*(300.89*9*1 + 2*9*9*1*(1 - 1))) / 100= 13.5408 cm2





= 5*(tn - trn)*fr2*t = (5*(9 - 1.13)*1*9) / 100 = 3.5426 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 1.13)*(2.5*9 + 15)*1) / 100 = 5.9032 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((460 - 300.89 - 2*9)*15*1) / 100 = 21.1665 cm2

V-8601 236

Area = A1 + A2 + A41 + A42 + A5

= 0 + 3.5426 + 1.2374 + 1.44 + 21.1665 = 27.3865 cm2





UG-45 Nozzle Neck Thickness Check ta UG-28 = 8.09 mm ta UG-22 = 8.09 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 7.13 , 8.09 ] = 8.09 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 14.33 , 7.5 ] = 7.5 mm


= max[ 8.09 , 7.5 ] = 8.09 mm


= 4*290.22 / (3*(318.89 / 1.13)) = 1.37 bar


V-8601 237

Acid Gas Outlet (N2) ASME Section VIII Division 1, 2010 Edition Metric

tw(lower) = 12.75 mm Leg41 = 12 mm tw(upper) = 15 mm Leg42 = 12 mm Dp = 460 mm te = 15 mm

Note: round inside edges per UG-76(c) Located on: Top Head Liquid static head included: 0.03 bar




Pad diameter: 460 mmFlange description: NPS 12 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.2906) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 0° Calculated as hillside: No Local vessel minimum thickness: 12.75 mm End of nozzle to datum line: 7,308 mm Nozzle inside diameter, new: 288.89 mm Nozzle nominal wall thickness: 15 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 189.88 mm Projection available outside vessel to flange face, Lf: 304.18 mm Distance to head center, R: 0 mm Pad is split: No

V-8601 238





A required


A welds treq tmin

20.3102 25.6762 0.0013 2.6535 -- 21.1665 1.8548 13.48 15


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

24,437 30,894 88,023 5,154 132,452 32,356 81,232







Calculations for internal pressure 8.89 bar @ 150 °C Nozzle impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 19.9 °C, (coincident ratio = 0.6439) Rated MDMT of -82.03°C is limited to -48°C by UCS-66(b)(2). Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 19.9 °C, (coincident ratio = 0.6439) Rated MDMT of -82.03°C is limited to -48°C by UCS-66(b)(2). Nozzle UCS-66 governing thk: 15 mm Nozzle rated MDMT: -48 °C Pad UCS-66 governing thickness: 15 mm Pad rated MDMT: -48 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(300.89, 150.45 + (15 - 6) + (12.75 - 6))= 300.89 mm


= MIN(2.5*(12.75 - 6), 2.5*(15 - 6) + 15) = 16.88 mm


= 8.8879*150.45 / (1,180*1 - 0.6*8.8879) = 1.14 mm

V-8601 239

Required thickness tr from UG-37(a)(c) tr = P*K1*D / (2*S*E - 0.2*P)

= 8.8879*0.8946*2,002 / (2*1,180*1 - 0.2*8.8879)= 6.75 mm


= (300.89*6.75*1 + 2*9*6.75*1*(1 - 1)) / 100= 20.3102 cm2


= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (300.89*(1*6.75 - 1*6.75) - 2*9*(1*6.75 - 1*6.75)*(1 - 1)) / 100= 0.0013 cm2

= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (2*(6.75 + 9)*(1*6.75 - 1*6.75) - 2*9*(1*6.75 - 1*6.75)*(1 - 1)) / 100= 0 cm2


= 5*(tn - trn)*fr2*t = (5*(9 - 1.14)*1*6.75) / 100 = 2.6535 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 1.14)*(2.5*9 + 15)*1) / 100 = 5.8968 cm2

A41 = Leg2*fr3

= (6.442*1) / 100 = 0.4148 cm2


= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((460 - 300.89 - 2*9)*15*1) / 100 = 21.1665 cm2

Area = A1 + A2 + A41 + A42 + A5

= 0.0013 + 2.6535 + 0.4148 + 1.44 + 21.1665= 25.6762 cm2


V-8601 240



Outer fillet: tmin = lesser of 19 mm or te or t = 6.75 mm


UG-45 Nozzle Neck Thickness Check Interpretation VIII-1-83-66 has been applied. ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 8.8879*150.45 / (1,180*1 - 0.6*8.8879) + 6= 7.14 mm


= max[ 7.14 , 8.38 ] = 8.38 mm

tb1 = 13.48 mm tb1 = max[ tb1 , tb UG16 ]

= max[ 13.48 , 7.5 ] = 13.48 mm


= min[ 14.33 , 13.48 ] = 13.48 mm


= max[ 8.38 , 13.48 ] = 13.48 mm






V-8601 241

Strength of welded joints: (1) Inner fillet weld in shear (π / 2)*Nozzle OD*Leg*Si = (π / 2)*318.89*12*589.599 = 35,440.47 kgf (2) Outer fillet weld in shear (π / 2)*Pad OD*Leg*So = (π / 2)*460*12*589.599 = 51,123.01 kgf (3) Nozzle wall in shear (π / 2)*Mean nozzle dia*tn*Sn = (π / 2)*309.89*9*842.285 = 36,900.25 kgf (4) Groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*318.89*6.75*890.415 = 30,108.64 kgf (6) Upper groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*318.89*15*890.415 = 66,902.93 kgf Loading on welds per UG-41(b)(1) W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (2,031.0225 - 0.129 + 2*9*1*(1*6.75 - 1*6.75))*1,203.264= 24,437.14 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (265.3543 + 2,116.65 + 41.4838 + 143.9997)*1,203.264= 30,893.69 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (265.3543 + 0 + 41.4838 + 0 + 2*9*6.75*1)*1,203.264= 5,154.16 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (265.3543 + 0 + 2,116.65 + 41.4838 + 143.9997 + 0 + 2*9*6.75*1)*1,203.264= 32,355.77 kgf

Load for path 1-1 lesser of W or W1-1 = 24,437.14 kgf Path 1-1 through (2) & (3) = 51,123.01 + 36,900.25 = 88,023.26 kgf Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2). Load for path 2-2 lesser of W or W2-2 = 5,154.16 kgf Path 2-2 through (1), (4), (6) = 35,440.47 + 30,108.64 + 66,902.93 = 132,452.03 kgf Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1). Load for path 3-3 lesser of W or W3-3 = 24,437.14 kgf Path 3-3 through (2), (4) = 51,123.01 + 30,108.64 = 81,231.64 kgf Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2). Applied Loads Radial load: Pr = 1,286.9 kgf Circumferential moment: M1 = 1,260 kgf-m Circumferential shear: V2 = 910 kgf Longitudinal moment: M2 = 1,260 kgf-m Longitudinal shear: V1 = 910 kgf Torsion moment: Mt = 1,781.9 kgf-m Internal pressure: P = 8.89 bar Head yield stress: Sy = 1,988.45 kgf/cm2

V-8601 242

Maximum stresses due to the applied loads at the pad edge (includes pressure) Mean dish radius Rm = 1,809.33 mm U = ro / Sqr(Rm*t) = 2.081 Pressure stress intensity factor, I = 1 (derived from PVP-Vol. 399, pages 77-82) Local pressure stress = I*P*Ri / (2*t) =1,212.302 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 3,315.6 kgf/cm2 Allowable combined stress (PL+Pb+Q ) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,634.07 kgf/cm2 Allowable local primary membrane stress (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The local maximum primary membrane stress (PL) is within allowable limits.


Figure value Au Al Bu Bl Cu Cl Du Dl

SR-2* 0.0234 -66.088 -66.088 -66.088 -66.088 -66.088 -66.088 -66.088 -66.088

SR-2 0.011 -186.384 186.384 -186.384 186.384 -186.384 186.384 -186.384 186.384

SR-3* 0.0195 0 0 0 0 -487.86 -487.86 487.86 487.86

SR-3 0.0124 0 0 0 0 -1,861.375 1,861.375 1,861.375 -1,861.375

SR-3* 0.0195 -487.86 -487.86 487.86 487.86 0 0 0 0

SR-3 0.0124 -1,861.375 1,861.375 1,861.375 -1,861.375 0 0 0 0

Pressure stress* 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302

Total Ox stress -1,389.405 2,706.113 3,309.065 -40.919 -1,389.405 2,706.113 3,309.065 -40.919

Membrane Ox stress* 658.354 658.354 1,634.073 1,634.073 658.354 658.354 1,634.073 1,634.073

SR-2* 0.0071 -20.037 -20.037 -20.037 -20.037 -20.037 -20.037 -20.037 -20.037

SR-2 0.0033 -55.894 55.894 -55.894 55.894 -55.894 55.894 -55.894 55.894

SR-3* 0.0058 0 0 0 0 -145.113 -145.113 145.113 145.113

SR-3 0.0037 0 0 0 0 -555.425 555.425 555.425 -555.425

SR-3* 0.0058 -145.113 -145.113 145.113 145.113 0 0 0 0

SR-3 0.0037 -555.425 555.425 555.425 -555.425 0 0 0 0

Pressure stress* 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302

Total Oy stress 435.832 1,658.469 1,836.908 837.847 435.832 1,658.469 1,836.908 837.847

Membrane Oy stress* 1,047.151 1,047.151 1,337.378 1,337.378 1,047.151 1,047.151 1,337.378 1,337.378

Shear from Mt 79.447 79.447 79.447 79.447 79.447 79.447 79.447 79.447

Shear from V1 0 0 0 0 -18.631 -18.631 18.631 18.631

Shear from V2 18.631 18.631 -18.631 -18.631 0 0 0 0


Combined stress(PL+Pb+Q) 1,835.713 2,715.182 3,311.596 887.132 1,829.315 2,709.628 3,315.603 900.42

Notes: (1) * denotes primary stress.

(2) The nozzle is assumed to be a rigid (solid) attachment.

V-8601 243

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Mean dish radius Rm = 1,809.33 mm U = ro / Sqr(Rm*t) = 0.804 Pressure stress intensity factor, I = 0.31991 (derived from PVP-Vol. 399, pages 77-82) Local pressure stress = I*P*Ri / (2*t) =387.813 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 1,376.68 kgf/cm2 Allowable combined stress (PL+Pb+Q ) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 500.23 kgf/cm2 Allowable local primary membrane stress (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The local maximum primary membrane stress (PL) is within allowable limits.



SR-2* 0.0871 -23.693 -23.693 -23.693 -23.693 -23.693 -23.693 -23.693 -23.693

SR-2 0.049 -80.009 80.009 -80.009 80.009 -80.009 80.009 -80.009 80.009

SR-3* 0.1014 0 0 0 0 -136.114 -136.114 136.114 136.114

SR-3 0.1181 0 0 0 0 -951.323 951.323 951.323 -951.323

SR-3* 0.1014 -136.114 -136.114 136.114 136.114 0 0 0 0

SR-3 0.1181 -951.323 951.323 951.323 -951.323 0 0 0 0

Pressure stress* 387.813 387.813 387.813 387.813 387.813 387.813 387.813 387.813

Total Ox stress -803.327 1,259.337 1,371.547 -371.08 -803.327 1,259.337 1,371.547 -371.08

Membrane Ox stress* 228.005 228.005 500.234 500.234 228.005 228.005 500.234 500.234

SR-2* 0.0265 -7.242 -7.242 -7.242 -7.242 -7.242 -7.242 -7.242 -7.242

SR-2 0.0149 -24.326 24.326 -24.326 24.326 -24.326 24.326 -24.326 24.326

SR-3* 0.0305 0 0 0 0 -40.919 -40.919 40.919 40.919

SR-3 0.0359 0 0 0 0 -289.172 289.172 289.172 -289.172

SR-3* 0.0305 -40.919 -40.919 40.919 40.919 0 0 0 0

SR-3 0.0359 -289.172 289.172 289.172 -289.172 0 0 0 0

Pressure stress* 387.813 387.813 387.813 387.813 387.813 387.813 387.813 387.813

Total Oy stress 26.154 653.151 686.336 156.644 26.154 653.151 686.336 156.644

Membrane Oy stress* 339.653 339.653 421.49 421.49 339.653 339.653 421.49 421.49

Shear from Mt 51.254 51.254 51.254 51.254 51.254 51.254 51.254 51.254

Shear from V1 0 0 0 0 -8.367 -8.367 8.367 8.367

Shear from V2 8.367 8.367 -8.367 -8.367 0 0 0 0


Combined stress(PL+Pb+Q) 837.988 1,265.173 1,374.219 534.684 833.91 1,262.36 1,376.679 541.012



V-8601 244


2 - Ri2)) + M*Ro / I

= 8.89*1.02*150.45 / (2*9) - 1,286.9 / (π*(159.452 - 150.452))*100 + 1,781,902.4*159.45 / 1.0527E+08*100 = 330.964 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Shear stress in the nozzle wall due to external loads σshear = (VL

2 + Vc2)0.5 / (π*Ri*tn)*100

= (9102 + 9102)0.5 / (π*150.45*9)*100 = 30.254 kgf/cm2 σtorsion = Mt / (2*π*Ri

2*tn)*100000 = 1,781.9 / (2*π*150.452*9)*100000 = 139.221 kgf/cm2 σtotal = σshear + σtorsion = 30.254 + 139.221 = 169.475 kgf/cm2 UG-45: The total combined shear stress (169.475 kgf/cm2) is below than the allowable (0.7*Sn = 0.7*1,203.264 = 842.285 kgf/cm2) % Extreme fiber elongation - UCS-79(d) EFE = (50*t / Rf)*(1 - Rf / Ro)

= (50*15 / 151.95)*(1 - 151.95 / ?) = 4.936%





A required


A welds treq tmin

34.6 34.602 2.2335 8.3219 -- 21.1665 2.88 8.33 15


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

39,224 38,948 111,433 16,349 159,211 43,550 107,990







V-8601 245


= MAX(288.89, 144.45 + (15 - 0) + (12.75 - 0))= 288.89 mm


= MIN(2.5*(12.75 - 0), 2.5*(15 - 0) + 15) = 31.88 mm


= 15.761*144.45 / (1,180*1 - 0.6*15.761) = 1.95 mm


= 15.761*0.9*1,990 / (2*1,180*1 - 0.2*15.761)= 11.98 mm


= (288.89*11.98*1 + 2*15*11.98*1*(1 - 1)) / 100= 34.6 cm2



= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (2*(12.75 + 15)*(1*12.75 - 1*11.98) - 2*15*(1*12.75 - 1*11.98)*(1 - 1)) / 100= 0.429 cm2


= 5*(tn - trn)*fr2*t = (5*(15 - 1.95)*1*12.75) / 100 = 8.3219 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(15 - 1.95)*(2.5*15 + 15)*1) / 100 = 13.7071 cm2

A41 = Leg2*fr3

= (122*1) / 100 = 1.44 cm2

V-8601 246

A42 = Leg2*fr4

= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((460 - 288.89 - 2*15)*15*1) / 100 = 21.1665 cm2

Area = A1 + A2 + A41 + A42 + A5

= 2.2335 + 8.3219 + 1.44 + 1.44 + 21.1665= 34.602 cm2






= 15.761*144.45 / (1,180*1 - 0.6*15.761) + 0= 1.95 mm


= max[ 1.95 , 2.84 ] = 2.84 mm


= max[ 13.31 , 1.5 ] = 13.31 mm


= min[ 8.33 , 13.31 ] = 8.33 mm


= max[ 2.84 , 8.33 ] = 8.33 mm


V-8601 247






Strength of welded joints: (1) Inner fillet weld in shear (π / 2)*Nozzle OD*Leg*Si = (π / 2)*318.89*12*589.599 = 35,440.47 kgf (2) Outer fillet weld in shear (π / 2)*Pad OD*Leg*So = (π / 2)*460*12*589.599 = 51,123.01 kgf (3) Nozzle wall in shear (π / 2)*Mean nozzle dia*tn*Sn = (π / 2)*303.89*15*842.285 = 60,309.67 kgf (4) Groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*318.89*12.75*890.415 = 56,867.49 kgf (6) Upper groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*318.89*15*890.415 = 66,902.93 kgf Loading on welds per UG-41(b)(1) W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (3,459.9957 - 223.3544 + 2*15*1*(1*12.75 - 1*11.98))*1,203.264= 39,224.47 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (832.1919 + 2,116.65 + 143.9997 + 143.9997)*1,203.264= 38,947.79 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (832.1919 + 0 + 143.9997 + 0 + 2*15*12.75*1)*1,203.264= 16,348.66 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (832.1919 + 0 + 2,116.65 + 143.9997 + 143.9997 + 0 + 2*15*12.75*1)*1,203.264= 43,550.28 kgf


V-8601 248





A required


A welds treq tmin

8.9571 28.0775 2.3974 2.6587 -- 21.1665 1.8548 8.09 15










= MAX(300.89, 150.45 + (15 - 6) + (12.75 - 6))= 300.89 mm


= MIN(2.5*(12.75 - 6), 2.5*(15 - 6) + 15) = 16.88 mm

Nozzle required thickness per UG-28 trn = 1.12 mm From UG-37(d)(1) required thickness tr = 5.95 mm Area required per UG-37(d)(1) Allowable stresses: Sn = 1,203.264, Sv = 1,203.264, Sp = 1,203.264 kgf/cm2 fr1 = lesser of 1 or Sn / Sv = 1 fr2 = lesser of 1 or Sn / Sv = 1 fr3 = lesser of fr2 or Sp / Sv = 1 fr4 = lesser of 1 or Sp / Sv = 1 A = 0.5*(d*tr*F + 2*tn*tr*F*(1 - fr1))

= (0.5*(300.89*5.95*1 + 2*9*5.95*1*(1 - 1))) / 100= 8.9571 cm2

V-8601 249



= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (2*(6.75 + 9)*(1*6.75 - 1*5.95) - 2*9*(1*6.75 - 1*5.95)*(1 - 1)) / 100= 0.251 cm2


= 5*(tn - trn)*fr2*t = (5*(9 - 1.12)*1*6.75) / 100 = 2.6587 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(9 - 1.12)*(2.5*9 + 15)*1) / 100 = 5.9071 cm2

A41 = Leg2*fr3

= (6.442*1) / 100 = 0.4148 cm2


= (122*1) / 100 = 1.44 cm2

A5 = (Dp - d - 2*tn)*te*fr4

= ((460 - 300.89 - 2*9)*15*1) / 100 = 21.1665 cm2

Area = A1 + A2 + A41 + A42 + A5

= 2.3974 + 2.6587 + 0.4148 + 1.44 + 21.1665= 28.0775 cm2





V-8601 250

UG-45 Nozzle Neck Thickness Check Interpretation VIII-1-83-66 has been applied. ta UG-28 = 8.09 mm ta UG-22 = 8.09 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 7.12 , 8.09 ] = 8.09 mm


= max[ 7.15 , 7.5 ] = 7.5 mm


= min[ 14.33 , 7.5 ] = 7.5 mm


= max[ 8.09 , 7.5 ] = 8.09 mm


= 4*291.54 / (3*(318.89 / 1.12)) = 1.37 bar


V-8601 251

Vent (N3) ASME Section VIII Division 1, 2010 Edition Metric

tw(lower) = 12.75 mm Leg41 = 12 mm

Note: round inside edges per UG-76(c) Located on: Top Head Liquid static head included: 0.0352 bar


Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 2 XX Heavy DN 50Flange description: NPS 2 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.2906) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 90° Calculated as hillside: Yes Local vessel minimum thickness: 12.75 mm End of nozzle to datum line: 7,308 mm Nozzle inside diameter, new: 38.18 mm Nozzle nominal wall thickness: 11.07 mm Nozzle corrosion allowance: 6 mm Opening chord length: 51.76 mm Projection available outside vessel, Lpr: 280.64 mm Projection available outside vessel to flange face, Lf: 344.14 mm Distance to head center, R: 450 mm

V-8601 252

Reinforcement Calculations for Internal Pressure Local stresses at the nozzle OD per WRC-107 govern the MAWP of this nozzle.



A required


A welds treq tmin








Calculations for internal pressure 7.52 bar @ 150 °C Fig UCS-66.2 general note (1) applies. Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.2298). External nozzle loadings per UG-22 govern the coincident ratio used. Nozzle UCS-66 governing thk: 9.69 mm Nozzle rated MDMT: -105 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(51.76, 25.88 + (11.07 - 6) + (12.75 - 6))= 51.76 mm


= MIN(2.5*(12.75 - 6), 2.5*(11.07 - 6) + 0)= 12.69 mm


= 7.516*25.09 / (1,180*1 - 0.6*7.516) = 0.16 mm


= 7.516*0.8946*2,002 / (2*1,180*1 - 0.2*7.516)= 5.71 mm

V-8601 253

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.55 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check Interpretation VIII-1-83-66 has been applied. ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 7.516*25.09 / (1,180*1 - 0.6*7.516) + 6= 6.16 mm


= max[ 6.16 , 6.89 ] = 6.89 mm


= max[ 12.33 , 7.5 ] = 12.33 mm


= min[ 9.42 , 12.33 ] = 9.42 mm


= max[ 6.89 , 9.42 ] = 9.42 mm

Available nozzle wall thickness new, tn = 0.875*11.07 = 9.69 mm The nozzle neck thickness is adequate. Applied Loads Radial load: Pr = 149.9 kgf Circumferential moment: M1 = 38.75 kgf-m Circumferential shear: V2 = 106.05 kgf Longitudinal moment: M2 = 38.75 kgf-m Longitudinal shear: V1 = 106.05 kgf Torsion moment: Mt = 55.06 kgf-m Internal pressure: P = 7.52 bar Head yield stress: Sy = 1,988.45 kgf/cm2

V-8601 254

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Mean dish radius Rm = 1,809.33 mm U = ro / Sqr(Rm*t) = 0.273 Pressure stress intensity factor, I = 1 (derived from PVP-Vol. 399, pages 77-82) Local pressure stress = I*P*Ri / (2*t) =1,025.215 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 3,609.77 kgf/cm2 Allowable combined stress (PL+Pb+Q ) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,086.94 kgf/cm2 Allowable local primary membrane stress (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The local maximum primary membrane stress (PL) is within allowable limits.



SR-2* 0.1981 -65.175 -65.175 -65.175 -65.175 -65.175 -65.175 -65.175 -65.175

SR-2 0.1508 -297.609 297.609 -297.609 297.609 -297.609 297.609 -297.609 297.609

SR-3* 0.1649 0 0 0 0 -126.904 -126.904 126.904 126.904

SR-3 0.534 0 0 0 0 -2,465.171 2,465.171 2,465.171 -2,465.171

SR-3* 0.1649 -126.904 -126.904 126.904 126.904 0 0 0 0

SR-3 0.534 -2,465.171 2,465.171 2,465.171 -2,465.171 0 0 0 0

Pressure stress* 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215

Total Ox stress -1,929.643 3,595.917 3,254.506 -1,080.617 -1,929.643 3,595.917 3,254.506 -1,080.617


SR-2* 0.06 -19.756 -19.756 -19.756 -19.756 -19.756 -19.756 -19.756 -19.756

SR-2 0.0452 -89.219 89.219 -89.219 89.219 -89.219 89.219 -89.219 89.219

SR-3* 0.0502 0 0 0 0 -38.598 -38.598 38.598 38.598

SR-3 0.1562 0 0 0 0 -721.068 721.068 721.068 -721.068

SR-3* 0.0502 -38.598 -38.598 38.598 38.598 0 0 0 0

SR-3 0.1562 -721.068 721.068 721.068 -721.068 0 0 0 0

Pressure stress* 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215 1,025.215

Total Oy stress 156.573 1,777.148 1,675.906 412.209 156.573 1,777.148 1,675.906 412.209

Membrane Oy stress* 966.86 966.86 1,044.057 1,044.057 966.86 966.86 1,044.057 1,044.057

Shear from Mt 142.723 142.723 142.723 142.723 142.723 142.723 142.723 142.723

Shear from V1 0 0 0 0 -16.592 -16.592 16.592 16.592

Shear from V2 16.592 16.592 -16.592 -16.592 0 0 0 0


Combined stress(PL+Pb+Q) 2,110.402 3,609.767 3,264.49 1,513.989 2,101.403 3,604.635 3,270.396 1,526.433



V-8601 255

Longitudinal stress in the nozzle wall due to internal pressure + external loads (hot shut down condition governs) σn (Pm) = ABS(Pr / (π*(Ro

2 - Ri2))) + M*Ro / I

= ABS(149.9 / (π*(30.162 - 25.092))*100) + 54,799.4*30.16 / 338,924.9*100 = 504.706 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Longitudinal stress in the nozzle wall due to external pressure + external loads σn (Pm) = ABS(P*Ri / (2*tn) - Pr / (π*(Ro

2 - Ri2)) - M*Ro / I)

= ABS(-1.03*1.02*25.09 / (2*3.69) - 149.9 / (π*(30.162 - 25.092)) - 54,799.4*30.16 / 338,924.9) = 508.291 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to external pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Shear stress in the nozzle wall due to external loads σshear = (VL

2 + Vc2)0.5 / (π*Ri*tn)*100

= (106.052 + 106.052)0.5 / (π*25.09*5.07)*100 = 37.499 kgf/cm2 σtorsion = Mt / (2*π*Ri

2*tn)*100000 = 55.1 / (2*π*25.092*5.07)*100000 = 274.393 kgf/cm2 σtotal = σshear + σtorsion = 37.499 + 274.393 = 311.892 kgf/cm2 UG-45: The total combined shear stress (311.892 kgf/cm2) is below than the allowable (0.7*Sn = 0.7*1,203.264 = 842.285 kgf/cm2) Reinforcement Calculations for MAP The vessel wall thickness governs the MAP of this nozzle.



A required


A welds treq tmin








V-8601 256


= MAX(39.38, 19.69 + (11.07 - 0) + (12.75 - 0))= 43.52 mm


= MIN(2.5*(12.75 - 0), 2.5*(11.07 - 0) + 0)= 27.69 mm


= 16.7763*19.09 / (1,180*1 - 0.6*16.7763)= 0.27 mm


= 16.7763*0.9*1,990 / (2*1,180*1 - 0.2*16.7763)= 12.75 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 11.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 6 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check Interpretation VIII-1-83-66 has been applied. ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 16.7763*19.09 / (1,180*1 - 0.6*16.7763) + 0= 0.27 mm


= max[ 0.27 , 1.68 ] = 1.68 mm


= max[ 14.17 , 1.5 ] = 14.17 mm


= min[ 3.42 , 14.17 ] = 3.42 mm


= max[ 1.68 , 3.42 ] = 3.42 mm


V-8601 257




A required


A welds treq tmin









= MAX(51.76, 25.88 + (11.07 - 6) + (12.75 - 6))= 51.76 mm


= MIN(2.5*(12.75 - 6), 2.5*(11.07 - 6) + 0)= 12.69 mm

Nozzle required thickness per UG-28 trn = 0.46 mm From UG-37(d)(1) required thickness tr = 5.95 mm This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.55 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check Interpretation VIII-1-83-66 has been applied. ta UG-28 = 6.87 mm ta UG-22 = 6.87 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.46 , 6.87 ] = 6.87 mm

tb2 = 7.15 mm

V-8601 258


= max[ 7.15 , 7.5 ] = 7.5 mm


= min[ 9.42 , 7.5 ] = 7.5 mm


= max[ 6.87 , 7.5 ] = 7.5 mm


= 4*133.59 / (3*(60.32 / 0.46)) = 1.37 bar


V-8601 259

Sour Water Outlet (N4) ASME Section VIII Division 1, 2010 Edition Metric

tw(lower) = 12.75 mm Leg41 = 12 mm tw(upper) = 15 mm Leg42 = 12 mm Dp = 210.01 mm te = 15 mm

Note: round inside edges per UG-76(c) Located on: Bottom Head Liquid static head included: 0.7986 bar


Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 3 XX Heavy DN 80 Pad material specification: SA-516 60 (II-D Metric p. 10, ln. 27) (normalized) Pad diameter: 210.01 mmFlange description: NPS 3 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3314) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.7998 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 0° Calculated as hillside: No Local vessel minimum thickness: 12.75 mm End of nozzle to datum line: -962 mm Nozzle inside diameter, new: 58.42 mm Nozzle nominal wall thickness: 15.24 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 382.4 mm Projection available outside vessel to flange face, Lf: 452.25 mm Distance to head center, R: 0 mm Pad is split: No

V-8601 260




A required


A welds treq tmin










Calculations for internal pressure 8.89 bar @ 150 °C Fig UCS-66.2 general note (1) applies. Nozzle impact test exemption temperature from Fig UCS-66M Curve B = -20.41 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 15.1 °C, (coincident ratio = 0.7304) Rated MDMT of -52.51°C is limited to -48°C by UCS-66(b)(2). Pad impact test exemption temperature from Fig UCS-66M Curve D = -47.21 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 15.1 °C, (coincident ratio = 0.7304) Rated MDMT of -79.31°C is limited to -48°C by UCS-66(b)(2). Nozzle UCS-66 governing thk: 13.34 mm Nozzle rated MDMT: -48 °C Pad UCS-66 governing thickness: 13.34 mm Pad rated MDMT: -48 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(70.42, 35.21 + (15.24 - 6) + (12.75 - 6))= 70.42 mm


= MIN(2.5*(12.75 - 6), 2.5*(15.24 - 6) + 15)= 16.88 mm


= 8.8878*35.21 / (1,180*1 - 0.6*8.8878) = 0.27 mm

V-8601 261


= 8.8878*0.8946*2,002 / (2*1,180*1 - 0.2*8.8878)= 6.75 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 9.24 mm





= 8.889*35.21 / (1,180*1 - 0.6*8.889) + 6= 6.27 mm


= max[ 6.27 , 7.54 ] = 7.54 mm


= max[ 13.48 , 7.5 ] = 13.48 mm


= min[ 10.8 , 13.48 ] = 10.8 mm


= max[ 7.54 , 10.8 ] = 10.8 mm

Available nozzle wall thickness new, tn = 0.875*15.24 = 13.34 mm The nozzle neck thickness is adequate. Applied Loads Radial load: Pr = 264.11 kgf Circumferential moment: M1 = 117.27 kgf-m Circumferential shear: V2 = 186.61 kgf Longitudinal moment: M2 = 117.27 kgf-m Longitudinal shear: V1 = 186.61 kgf Torsion moment: Mt = 166.21 kgf-m Internal pressure: P = 8.89 bar Head yield stress: Sy = 1,988.45 kgf/cm2

V-8601 262

Maximum stresses due to the applied loads at the pad edge (includes pressure) Mean dish radius Rm = 1,809.33 mm U = ro / Sqr(Rm*t) = 0.95 Pressure stress intensity factor, I = 1 (derived from PVP-Vol. 399, pages 77-82) Local pressure stress = I*P*Ri / (2*t) =1,212.302 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 2,374.33 kgf/cm2 Allowable combined stress (PL+Pb+Q ) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,364.8 kgf/cm2 Allowable local primary membrane stress (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The local maximum primary membrane stress (PL) is within allowable limits.



SR-2* 0.0703 -40.778 -40.778 -40.778 -40.778 -40.778 -40.778 -40.778 -40.778

SR-2 0.0378 -131.474 131.474 -131.474 131.474 -131.474 131.474 -131.474 131.474

SR-3* 0.083 0 0 0 0 -193.274 -193.274 193.274 193.274

SR-3 0.0815 0 0 0 0 -1,138.62 1,138.62 1,138.62 -1,138.62

SR-3* 0.083 -193.274 -193.274 193.274 193.274 0 0 0 0

SR-3 0.0815 -1,138.62 1,138.62 1,138.62 -1,138.62 0 0 0 0

Pressure stress* 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302

Total Ox stress -291.844 2,248.344 2,371.944 357.651 -291.844 2,248.344 2,371.944 357.651


SR-2* 0.0218 -12.655 -12.655 -12.655 -12.655 -12.655 -12.655 -12.655 -12.655

SR-2 0.0113 -39.302 39.302 -39.302 39.302 -39.302 39.302 -39.302 39.302

SR-3* 0.025 0 0 0 0 -58.214 -58.214 58.214 58.214

SR-3 0.0246 0 0 0 0 -343.66 343.66 343.66 -343.66

SR-3* 0.025 -58.214 -58.214 58.214 58.214 0 0 0 0

SR-3 0.0246 -343.66 343.66 343.66 -343.66 0 0 0 0

Pressure stress* 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302 1,212.302

Total Oy stress 758.471 1,524.394 1,562.219 953.502 758.471 1,524.394 1,562.219 953.502

Membrane Oy stress* 1,141.433 1,141.433 1,257.861 1,257.861 1,141.433 1,141.433 1,257.861 1,257.861

Shear from Mt 35.575 35.575 35.575 35.575 35.575 35.575 35.575 35.575

Shear from V1 0 0 0 0 -8.367 -8.367 8.367 8.367

Shear from V2 8.367 8.367 -8.367 -8.367 0 0 0 0


Combined stress(PL+Pb+Q) 1,053.971 2,251.016 2,372.858 954.768 1,051.721 2,249.399 2,374.334 956.736



V-8601 263

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Mean dish radius Rm = 1,809.33 mm U = ro / Sqr(Rm*t) = 0.224 Pressure stress intensity factor, I = 0.15518 (derived from PVP-Vol. 399, pages 77-82) Local pressure stress = I*P*Ri / (2*t) =188.141 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 732.32 kgf/cm2 Allowable combined stress (PL+Pb+Q ) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 196.37 kgf/cm2 Allowable local primary membrane stress (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The local maximum primary membrane stress (PL) is within allowable limits.



SR-2* 0.2154 -12.022 -12.022 -12.022 -12.022 -12.022 -12.022 -12.022 -12.022

SR-2 0.1782 -59.691 59.691 -59.691 59.691 -59.691 59.691 -59.691 59.691

SR-3* 0.1619 0 0 0 0 -20.248 -20.248 20.248 20.248

SR-3 0.6736 0 0 0 0 -505.014 505.014 505.014 -505.014

SR-3* 0.1619 -20.248 -20.248 20.248 20.248 0 0 0 0

SR-3 0.6736 -505.014 505.014 505.014 -505.014 0 0 0 0

Pressure stress* 188.141 188.141 188.141 188.141 188.141 188.141 188.141 188.141

Total Ox stress -408.835 720.575 641.691 -248.957 -408.835 720.575 641.691 -248.957

Membrane Ox stress* 155.87 155.87 196.367 196.367 155.87 155.87 196.367 196.367

SR-2* 0.0666 -3.726 -3.726 -3.726 -3.726 -3.726 -3.726 -3.726 -3.726

SR-2 0.0532 -17.788 17.788 -17.788 17.788 -17.788 17.788 -17.788 17.788

SR-3* 0.049 0 0 0 0 -6.117 -6.117 6.117 6.117

SR-3 0.196 0 0 0 0 -146.941 146.941 146.941 -146.941

SR-3* 0.049 -6.117 -6.117 6.117 6.117 0 0 0 0

SR-3 0.196 -146.941 146.941 146.941 -146.941 0 0 0 0

Pressure stress* 188.141 188.141 188.141 188.141 188.141 188.141 188.141 188.141

Total Oy stress 13.569 343.027 319.685 61.378 13.569 343.027 319.685 61.378

Membrane Oy stress* 178.298 178.298 190.532 190.532 178.298 178.298 190.532 190.532

Shear from Mt 61.589 61.589 61.589 61.589 61.589 61.589 61.589 61.589

Shear from V1 0 0 0 0 -6.117 -6.117 6.117 6.117

Shear from V2 6.117 6.117 -6.117 -6.117 0 0 0 0


Combined stress(PL+Pb+Q) 443.566 732.317 650.972 329.599 436.746 728.59 655.331 338.598



V-8601 264

Longitudinal stress in the nozzle wall due to internal pressure + external loads (hot shut down condition governs) σn (Pm) = ABS(Pr / (π*(Ro

2 - Ri2))) + M*Ro / I

= ABS(264.11 / (π*(44.452 - 35.212))*100) + 165,840.4*44.45 / 1,858,904*100 = 407.979 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Longitudinal stress in the nozzle wall due to external pressure + external loads σn (Pm) = ABS(P*Ri / (2*tn) - Pr / (π*(Ro

2 - Ri2)) - M*Ro / I)

= ABS(-1.03*1.02*35.21 / (2*7.34) - 264.11 / (π*(44.452 - 35.212)) - 165,840.4*44.45 / 1,858,904) = 410.51 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to external pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Shear stress in the nozzle wall due to external loads σshear = (VL

2 + Vc2)0.5 / (π*Ri*tn)*100





A required


A welds treq tmin










V-8601 265


= MAX(58.42, 29.21 + (15.24 - 0) + (12.75 - 0))= 58.42 mm


= MIN(2.5*(12.75 - 0), 2.5*(15.24 - 0) + 15)= 31.88 mm


= 16.7763*29.21 / (1,180*1 - 0.6*16.7763)= 0.42 mm


= 16.7763*0.9*1,990 / (2*1,180*1 - 0.2*16.7763)= 12.75 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 15 mm





= 16.7763*29.21 / (1,180*1 - 0.6*16.7763) + 0= 0.42 mm


= max[ 0.42 , 2.35 ] = 2.35 mm


= max[ 14.17 , 1.5 ] = 14.17 mm


= min[ 4.8 , 14.17 ] = 4.8 mm


= max[ 2.35 , 4.8 ] = 4.8 mm


V-8601 266




A required


A welds treq tmin











= MAX(70.42, 35.21 + (15.24 - 6) + (12.75 - 6))= 70.42 mm


= MIN(2.5*(12.75 - 6), 2.5*(15.24 - 6) + 15)= 16.88 mm

Nozzle required thickness per UG-28 trn = 0.64 mm From UG-37(d)(1) required thickness tr = 5.95 mm This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 9.24 mm




V-8601 267

UG-45 Nozzle Neck Thickness Check Interpretation VIII-1-83-66 has been applied. ta UG-28 = 7.48 mm ta UG-22 = 7.48 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.64 , 7.48 ] = 7.48 mm


= max[ 7.15 , 7.5 ] = 7.5 mm


= min[ 10.8 , 7.5 ] = 7.5 mm


= max[ 7.48 , 7.5 ] = 7.5 mm


= 4*143.6 / (3*(88.9 / 0.64)) = 1.37 bar


V-8601 268

Drain (N5) ASME Section VIII Division 1, 2010 Edition Metric

tw(lower) = 15.24 mm Leg41 = 12 mm

Note: round inside edges per UG-76(c) Located on: Sour Water Outlet (N4) Liquid static head included: 0.7785 bar


Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 3 XX Heavy DN 80Flange description: NPS 3 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3301) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.7756 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 0° Local vessel minimum thickness: 13.34 mm Nozzle center line offset to face of parent nozzle: 250 mm End of nozzle to shell center: 230 mm Nozzle inside diameter, new: 58.42 mm Nozzle nominal wall thickness: 15.24 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 115.7 mm Projection available outside vessel to flange face, Lf: 185.55 mm Note: Nozzle is outside of scope of Appendix 1-7 as externally applied loads exist. Appendix 1-10 or Division 2 Part 4.5 was used for the U-2(g) large opening analysis.

V-8601 269

Reinforcement Calculations for Internal Pressure The attached ASME B16.5 flange limits the nozzle MAWP.

Appendix 1-10 Maximum Local Primary Membrane StressFor P = 15.8 bar @ 150 °C


PL (kgf/cm2)

Sallow (kgf/cm2)

A1 (cm2)

A2 (cm2)

A3 (cm2)

A5 (cm2)

A welds(cm2)

treq (mm)

tmin (mm)


Division 2 Part 4.5 Strength of Nozzle Attachment Welds Summary Average Shear Stress in Weld

ky Lτ

(mm) L41T

(mm) L42T

(mm) L43T

(mm) fwelds (kgf)

τ (kgf/cm2)

S (kgf/cm2)

Overstressed

1.2624 69.82 8.49 0 0 252.2 42.2 1,203.26 No





Calculations for internal pressure 15.8 bar @ 150 °C Fig UCS-66.2 general note (1) applies. Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.2004). External nozzle loadings per UG-22 govern the coincident ratio used. Nozzle UCS-66 governing thk: 13.34 mm Nozzle rated MDMT: -105 °C Appendix 1-10 Effective radius of the vessel Reff = 0.5*Di

= 0.5*70.42 = 35.21 mm

Limit of reinforcement along the vessel wall LR = 8*t

= 8*7.34 = 58.68 mm

Limit of reinforcement along the nozzle wall projecting outside the vessel surface LH1 = t + 0.78*(Rn*tn)0.5

= 7.34 + 0.78*(35.21*9.24)0.5 = 21.4 mm

LH2 = Lpr1 + t

= 115.7 + 7.34 = 123.04 mm

LH3 = 8*(t + te)

= 8*(7.34 + 0) = 58.68 mm

V-8601 270

LH = min[ LH1, LH2, LH3]

= min[ 21.4, 123.04, 58.68] = 21.4 mm

Effective thickness teff = t

= 7.34 mm Total available area near the nozzle opening λ = min[ (2*Rn + tn) / ((Di + teff)*teff)0.5, 10]

= min[ (2*35.21 + 9.24) / ((70.42 + 7.34)*7.34)0.5, 10]= 3.3356

A1 = t*LR*max[ (λ / 4) , 1]

= 7.34*58.68*max[ (3.3356 / 4) , 1] / 100 = 7.34*58.68*1 / 100= 4.3042 cm2

A2 = tn*LH

= 9.24*21.4 / 100 = 1.9777 cm2

A41 = 0.5*L41

2 = 0.5*122 / 100 = 0.72 cm2

AT = A1 + A2 + A41

= 4.3042 + 1.9777 + 0.72 = 7.0019 cm2

Forces at nozzle to vessel intersection fN = P*Rn*(LH - t)

= 15.8*35.21*(21.4 - 7.34)*0.0102 = 79.83 kgf

fS = P*Reff*(LR + tn)

= 15.8*35.21*(58.68 + 9.24)*0.0102 = 385.37 kgf

fY = P*Reff*Rnc

= 15.8*35.21*35.21*0.0102 = 199.78 kgf

Average local primary membrane stress σavg = (fN + fS + fY) / AT

= (79.83 + 385.37 + 199.78) / 7.0019 = 94.97 kgf/cm2

General primary membrane stress σcirc = P*Reff / teff

= 15.8*35.21 / 7.34*1.02 = 77.354 kgf/cm2

Maximum local primary membrane stress at the nozzle intersection PL = max[ {2*σavg - σcirc} , σcirc]

= max[ {2*94.97 - 77.35} , 77.35] = 112.587 kgf/cm2

V-8601 271

Allowable stress Sallow = 1.5*S*E

= 1.5*1,203.26*1 = 1,804.896 kgf/cm2

PL = 112.59 kgf/cm2 ≤ Sallow = 1,804.9 kgf/cm2 satisfactory Maximum allowable working pressure Ap = Rn*(LH - t) + Reff*(LR + tn + Rnc)

= (35.21*(21.4 - 7.34) + 35.21*(58.68 + 9.24 + 35.21)) / 100= 41.2658 cm2

Pmax1 = Sallow / (2*Ap / AT - Reff / teff)

= 1,804.9 / (2*41.2658 / 7.0019 - 35.21 / 7.34) / 1.02= 253.3372 bar

Pmax2 = S*(t / Reff)

= 1,203.264*(7.34 / 35.21) / 1.02 = 245.8193 bar

Pmax = min[ Pmax1, Pmax2]

= min[ 253.34, 245.82] = 245.8193 bar

Division 2 Part 4.5 Strength of Nozzle Attachment Welds (U-2(g) analysis) Discontinuity force factor ky = (Rnc + tn) / Rnc

= (35.21 + 9.24) / 35.21 = 1.2624

Weld length resisting discontinuity force Lτ = π / 2*(Rn + tn)

= π / 2*(35.21 + 9.24)= 69.82 mm

Weld throat dimensions L41T = 0.7071*L41

= 0.7071*12 = 8.49 mm

Average shear stress in weld fwelds = min[ fY*ky, 1.5*Sn*(A2 + A3) ]

= min[ 199.78*1.2624, 1.5*1,203.26*(1.9777 + 0) ]= 252.2 kgf

τ = fwelds / [Lτ*(0.49*L41T + 0.6*tw1 + 0.49*L43T)]

= 252.2 / [69.82*(0.49*8.49 + 0.6*7.34 + 0.49*0)]*100= 42.204 kgf/cm2

τ = 42.2 kgf/cm2 ≤ S = 1,203.26 kgf/cm2 satisfactory UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 7.34 mm tc(min) = lesser of 6 mm or 0.7*tmin = 5.13 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).

V-8601 272


= 15.8028*35.21 / (1,180*1 - 0.6*15.8028) + 6= 6.48 mm


= max[ 6.48 , 7.72 ] = 7.72 mm


= 15.8028*35.21 / (1,180*1 - 0.6*15.8028) + 6= 6.48 mm


= max[ 6.48 , 7.5 ] = 7.5 mm


= min[ 10.8 , 7.5 ] = 7.5 mm


= max[ 7.72 , 7.5 ] = 7.72 mm

Available nozzle wall thickness new, tn = 0.875*15.24 = 13.34 mm The nozzle neck thickness is adequate. Applied Loads Radial load: Pr = 264.11 kgf Circumferential moment: Mc = 117.27 kgf-m Circumferential shear: Vc = 186.61 kgf Longitudinal moment: ML = 117.27 kgf-m Longitudinal shear: VL = 186.61 kgf Torsion moment: Mt = 166.21 kgf-m Internal pressure: P = 15.8 bar Mean shell radius: Rm = 38.88 mm Local shell thickness: t = 7.34 mm Shell yield stress: Sy = 2,182.19 kgf/cm2

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Rm / t = 38.88 / 7.34 = 5.3003 Pressure stress intensity factor, I = 1.35091 (derived from PVP-Vol. 399, pages 77-82) Local circumferential pressure stress = I*P*Ri / t =104.476 kgf/cm2 Local longitudinal pressure stress = I*P*Ri / (2*t) =52.238 kgf/cm2 Maximum combined stress (PL+Pb+Q) = -3,369.11 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 691.82 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

V-8601 273



3C* 0.6084 1.0004 0 0 0 0 -56.316 -56.316 -56.316 -56.316

4C* 0.7818 1.0004 -72.416 -72.416 -72.416 -72.416 0 0 0 0

1C 0.0579 1.0004 0 0 0 0 -170.565 170.565 -170.565 170.565

2C-1 0.0389 1.0004 -114.6 114.6 -114.6 114.6 0 0 0 0

3A* 0.272 1.0004 0 0 0 0 -287.555 -287.555 287.555 287.555

1A 0.0864 1.0004 0 0 0 0 -2,905.081 2,905.081 2,905.081 -

2,905.081

3B* 0.624 1.0004 -659.76 -659.76 659.76 659.76 0 0 0 0

1B-1 0.0302 1.0004 -1,015.443 1,015.443 1,015.443 -

1,015.443 0 0 0 0

Pressure stress* 104.476 104.476 104.476 104.476 77.338 77.338 77.338 77.338

Total circumferential stress -1,757.743 502.343 1,592.662 -209.022 -

3,342.179 2,809.112 3,043.094 -2,425.94

Primary membrane circumferential stress* -627.7 -627.7 691.82 691.82 -266.533 -266.533 308.577 308.577

3C* 0.6084 1.0004 -56.316 -56.316 -56.316 -56.316 0 0 0 0

4C* 0.7818 1.0004 0 0 0 0 -72.416 -72.416 -72.416 -72.416

1C-1 0.0571 1.0004 -168.174 168.174 -168.174 168.174 0 0 0 0

2C 0.0397 1.0004 0 0 0 0 -116.92 116.92 -116.92 116.92

4A* 0.5354 1.0004 0 0 0 0 -566.111 -566.111 566.111 566.111

2A 0.0495 1.0004 0 0 0 0 -1,664.375 1,664.375 1,664.375 -

1,664.375

4B* 0.2356 1.0004 -249.097 -249.097 249.097 249.097 0 0 0 0

2B-1 0.0536 1.0004 -1,802.247 1,802.247 1,802.247 -

1,802.247 0 0 0 0

Pressure stress* 38.669 38.669 38.669 38.669 52.238 52.238 52.238 52.238

Total longitudinal stress -2,237.166 1,703.677 1,865.523 -

1,402.623 -2,367.585 1,195.006 2,093.388 -

1,001.522

Primary membrane longitudinal stress* -266.744 -266.744 231.45 231.45 -586.289 -586.289 545.933 545.933

Shear from Mt 182.517 182.517 182.517 182.517 182.517 182.517 182.517 182.517




Combined stress (PL+Pb+Q) -2,310.074 1,736.299 1,942.65 -1,424.84 -

3,369.107 2,825.634 3,083.801 -2,453.711


V-8601 274


2 - Ri2)) + M*Ro / I

= 15.8*1.02*35.21 / (2*7.34) - 264.11 / (π*(44.452 - 35.212))*100 + 165,840.4*44.45 / 1,858,904*100 = 423.813 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Shear stress in the nozzle wall due to external loads σshear = (VL

2 + Vc2)0.5 / (π*Ri*tn)*100


2*tn)*100000 = 166.2 / (2*π*35.212*9.24)*100000 = 230.931 kgf/cm2 σtotal = σshear + σtorsion = 25.82 + 230.931 = 256.751 kgf/cm2 UG-45: The total combined shear stress (256.751 kgf/cm2) is below than the allowable (0.7*Sn = 0.7*1,203.264 = 842.285 kgf/cm2) Reinforcement Calculations for MAP The attached ASME B16.5 flange limits the nozzle MAP.

Appendix 1-10 Maximum Local Primary Membrane StressFor P = 19.6 bar @ 25 °C


PL (kgf/cm2)

Sallow (kgf/cm2)

A1 (cm2)

A2 (cm2)

A3 (cm2)

A5 (cm2)

A welds(cm2)

treq (mm)

tmin (mm)



ky Lτ

(mm) L41T

(mm) L42T

(mm) L43T

(mm) fwelds (kgf)

τ (kgf/cm2)

S (kgf/cm2)

Overstressed

1.5217 69.82 8.49 0 0 259.5 30.57 1,203.26 No





Calculations for internal pressure 19.6 bar @ 25 °C Appendix 1-10 Effective radius of the vessel Reff = 0.5*Di

= 0.5*58.42 = 29.21 mm

Limit of reinforcement along the vessel wall LR = 8*t

= 8*13.34 = 106.68 mm

V-8601 275

Limit of reinforcement along the nozzle wall projecting outside the vessel surface LH1 = t + 0.78*(Rn*tn)0.5

= 13.34 + 0.78*(29.21*15.24)0.5 = 29.79 mm

LH2 = Lpr1 + t

= 115.7 + 13.34 = 129.04 mm

LH3 = 8*(t + te)

= 8*(13.34 + 0) = 106.68 mm


= min[ 29.79, 129.04, 106.68] = 29.79 mm


= 13.34 mm Total available area near the nozzle opening λ = min[ (2*Rn + tn) / ((Di + teff)*teff)0.5, 10]

= min[ (2*29.21 + 15.24) / ((58.42 + 13.34)*13.34)0.5, 10]= 2.3813

A1 = t*LR*max[ (λ / 4) , 1]

= 13.34*106.68*max[ (2.3813 / 4) , 1] / 100= 13.34*106.68*1 / 100 = 14.2258 cm2

A2 = tn*LH

= 15.24*29.79 / 100= 4.5403 cm2

A41 = 0.5*L41

2 = 0.5*122 / 100 = 0.72 cm2

AT = A1 + A2 + A41

= 14.2258 + 4.5403 + 0.72 = 19.4861 cm2

Forces at nozzle to vessel intersection fN = P*Rn*(LH - t)

= 19.6*29.21*(29.79 - 13.34)*0.0102 = 96.08 kgf

fS = P*Reff*(LR + tn)

= 19.6*29.21*(106.68 + 15.24)*0.0102 = 711.77 kgf

fY = P*Reff*Rnc

= 19.6*29.21*29.21*0.0102 = 170.53 kgf

V-8601 276


= (96.08 + 711.77 + 170.53) / 19.4861 = 50.209 kgf/cm2

General primary membrane stress σcirc = P*Reff / teff

= 19.6*29.21 / 13.34*1.02 = 43.78 kgf/cm2


= max[ {2*50.21 - 43.78} , 43.78] = 56.638 kgf/cm2

Allowable stress Sallow = 1.5*S*E

= 1.5*1,203.26*1 = 1,804.896 kgf/cm2

PL = 56.64 kgf/cm2 ≤ Sallow = 1,804.9 kgf/cm2 satisfactory Maximum allowable pressure Ap = Rn*(LH - t) + Reff*(LR + tn + Rnc)

= (29.21*(29.79 - 13.34) + 29.21*(106.68 + 15.24 + 29.21)) / 100= 48.9522 cm2

Pmax1 = Sallow / (2*Ap / AT - Reff / teff)

= 1,804.9 / (2*48.9522 / 19.4861 - 29.21 / 13.34) / 1.02= 624.5932 bar

Pmax2 = S*(t / Reff)

= 1,203.264*(13.34 / 29.21) / 1.02 = 538.6956 bar


= min[ 624.59, 538.7]= 538.6956 bar

Division 2 Part 4.5 Strength of Nozzle Attachment Welds (U-2(g) analysis) Discontinuity force factor ky = (Rnc + tn) / Rnc

= (29.21 + 15.24) / 29.21 = 1.5217


= π / 2*(29.21 + 15.24) = 69.82 mm


= 0.7071*12 = 8.49 mm

V-8601 277


= min[ 170.53*1.5217, 1.5*1,203.26*(4.5403 + 0) ]= 259.5 kgf


= 259.5 / [69.82*(0.49*8.49 + 0.6*13.34 + 0.49*0)]*100= 30.567 kgf/cm2

τ = 30.57 kgf/cm2 ≤ S = 1,203.26 kgf/cm2 satisfactory UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 13.34 mm tc(min) = lesser of 6 mm or 0.7*tmin = 6 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 19.6*29.21 / (1,180*1 - 0.6*19.6) + 0= 0.49 mm


= max[ 0.49 , 2.41 ] = 2.41 mm


= 19.6*29.21 / (1,180*1 - 0.6*19.6) + 0= 0.49 mm


= max[ 0.49 , 1.5 ] = 1.5 mm


= min[ 4.8 , 1.5 ] = 1.5 mm


= max[ 2.41 , 1.5 ] = 2.41 mm


V-8601 278


Division 2 Part 4.5 Maximum Local Primary Membrane StressFor Pe = 1.37 bar @ 150 °C


PL (kgf/cm2)

Sallow (kgf/cm2)

A1 (cm2)

A2 (cm2)

A3 (cm2)

A5 (cm2)

A welds(cm2)

treq (mm)

tmin (mm)



ky Lτ

(mm) L41T

(mm) L42T

(mm) L43T

(mm) fwelds (kgf)

τ (kgf/cm2)

S (kgf/cm2)

Overstressed

1.2624 69.82 8.49 0 0 24.06 4.03 1,203.26 No





Calculations for external pressure 1.37 bar @ 150 °C Division 2 Part 4.5 Design Rules for Openings in Shells and Heads (U-2(g) analysis) Effective radius of the vessel Reff = 0.5*Di

= 0.5*70.42 = 35.21 mm

Limit of reinforcement along the vessel wall LR = min[ (Reff*t)0.5, 2*Rn]

= min[ (35.21*7.34)0.5, 2*35.21] = 16.07 mm

Limit of reinforcement along the nozzle wall projecting outside the vessel surface LH1 = t + te + (Rn*tn)0.5

= 7.34 + 0 + (35.21*9.24)0.5 = 25.37 mm

LH2 = Lpr1 + t

= 115.7 + 7.34 = 123.04 mm

LH3 = 8*(t + te)

= 8*(7.34 + 0) = 58.68 mm


= min[ 25.37, 123.04, 58.68] = 25.37 mm

V-8601 279


= 7.34 mm Total available area near the nozzle opening λ = 0 (for external pressure design) A1 = t*LR*max[ (λ / 5)0.85 , 1]

= 7.34*16.07*max[ (0 / 5)0.85 , 1] / 100 = 7.34*16.07*1 / 100= 1.1788 cm2

A2 = tn*LH

= 9.24*25.37 / 100 = 2.3444 cm2

A41 = 0.5*L41

2 = 0.5*122 / 100 = 0.72 cm2

frn = Sn / S

= 1,203.26 / 1,203.26= 1

AT = A1 + frn*A2 + A41

= 1.1788 + 1*2.3444 + 0.72 = 4.2432 cm2

Forces at nozzle to vessel intersection Rxn = tn / ln[(Rn + tn) / Rn]

= 9.24 / ln[(35.21 + 9.24) / 35.21] = 39.65 mm

Rxs = teff / ln[(Reff + teff) / Reff]

= 7.34 / ln[(35.21 + 7.34) / 35.21] = 38.76 mm

fN = P*Rxn*(LH - t)

= 1.37*39.65*(25.37 - 7.34)*0.0102 = 9.99 kgf

fS = P*Rxs*(LR + tn)

= 1.37*38.76*(16.07 + 9.24)*0.0102 = 13.7 kgf

fY = P*Rxs*Rnc

= 1.37*38.76*35.21*0.0102 = 19.06 kgf


= (9.99 + 13.7 + 19.06) / 4.2432 = 10.076 kgf/cm2

General primary membrane stress σcirc = P*Rxs / teff

= 1.37*38.76 / 7.34*1.02 = 7.381 kgf/cm2

V-8601 280


= max[ {2*10.08 - 7.38} , 7.38] = 12.771 kgf/cm2

Allowable stress Sallow = 1.5*min[ Sc, S]

= 1.5*min[ 1,220.93, 1,203.26] = 1,804.896 kgf/cm2

PL = 12.77 kgf/cm2 ≤ Sallow = 1,804.9 kgf/cm2 satisfactory Maximum allowable external pressure Ap = Rxn*(LH - t) + Rxs*(LR + tn + Rnc)

= (39.65*(25.37 - 7.34) + 38.76*(16.07 + 9.24 + 35.21)) / 100= 30.6108 cm2

Pmax1 = Sallow / (2*Ap / AT - Rxs / teff)

= 1,804.9 / (2*30.6108 / 4.2432 - 38.76 / 7.34) / 1.02= 193.5746 bar

Pmax2 = S*(t / Rxs)

= 1,220.928*(7.34 / 38.76) / 1.02 = 226.572 bar


= min[ 193.57, 226.57] = 193.5746 bar

Strength of Nozzle Attachment Welds Discontinuity force factor ky = (Rnc + tn) / Rnc

= (35.21 + 9.24) / 35.21 = 1.2624


= π / 2*(35.21 + 9.24)= 69.82 mm


= 0.7071*12 = 8.49 mm


= min[ 19.06*1.2624, 1.5*1,203.26*(2.3444 + 0) ]= 24.06 kgf


= 24.06 / [69.82*(0.49*8.49 + 0.6*7.34 + 0.49*0)]*100= 4.027 kgf/cm2

τ = 4.03 kgf/cm2 ≤ S = 1,203.26 kgf/cm2 satisfactory

V-8601 281

UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 7.34 mm tc(min) = lesser of 6 mm or 0.7*tmin = 5.13 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-28 = 7.48 mm ta UG-22 = 7.48 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.47 , 7.48 ] = 7.48 mm


= 1.3697*35.21 / (1,180*1 - 0.6*1.3697) + 6= 6.04 mm


= max[ 6.04 , 7.5 ] = 7.5 mm


= min[ 10.8 , 7.5 ] = 7.5 mm


= max[ 7.48 , 7.5 ] = 7.5 mm

Available nozzle wall thickness new, tn = 0.875*15.24 = 13.34 mm The nozzle neck thickness is adequate. External Pressure, (Corroded & at 150 °C) UG-28(c) L / Do = 230 / 88.9 = 2.5872 Do / t = 88.9 / 0.47 = 188.0944From table G: A = 0.000195 From table CS-2 Metric: B = 197.0367 kg/cm2 (193.23 bar)Pa = 4*B / (3*(Do / t))

= 4*193.23 / (3*(88.9 / 0.47)) = 1.37 bar


V-8601 282

Utility Nozzle/Steam Out (N6) ASME Section VIII Division 1, 2010 Edition Metric




Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 2 XX Heavy DN 50Flange description: NPS 2 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3259) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.6923 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 240° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 150 mm End of nozzle to shell center: 1,255 mm Nozzle inside diameter, new: 38.18 mm Nozzle nominal wall thickness: 11.07 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 181.5 mm Projection available outside vessel to flange face, Lf: 245 mm

V-8601 283




A required


A welds treq tmin









= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm


= 10.5529*25.09 / (1,180*1 - 0.6*10.5529)= 0.23 mm


= 10.5529*1,001 / (1,180*1 - 0.6*10.5529)= 9 mm


2*S*Ks) * 98066.5

= |10.5529*1,001 / (2*1,180*1.2 + 0.4*10.5529) - 0.6*13,899.44 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 9,112.2 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.83 mm

V-8601 284


2*S*Ks) * 98066.5

= |10.5529*1,001 / (2*1,180*1.2 + 0.4*10.5529) - 13,899.44 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 9,112.2 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.37 mm


= 10.5529*25.09 / (1,180*1 - 0.6*10.5529) + 6= 6.23 mm


= max[ 6.23 , 6.95 ] = 6.95 mm


= 10.5529*1,001 / (1,180*1 - 0.6*10.5529) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.42 , 15 ] = 9.42 mm


= max[ 6.95 , 9.42 ] = 9.42 mm

Available nozzle wall thickness new, tn = 0.875*11.07 = 9.69 mm The nozzle neck thickness is adequate. Applied Loads Radial load: Pr = 149.9 kgf Circumferential moment: Mc = 38.75 kgf-m Circumferential shear: Vc = 106.05 kgf Longitudinal moment: ML = 38.75 kgf-m Longitudinal shear: VL = 106.05 kgf Torsion moment: Mt = 55.06 kgf-m Internal pressure: P = 10.55 bar Mean shell radius: Rm = 1,005.5 mm Local shell thickness: t = 9 mm Shell yield stress: Sy = 1,988.45 kgf/cm2

V-8601 285

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Rm / t = 1,005.5 / 9 = 111.7157 Pressure stress intensity factor, I = 1.19513 (derived from PVP-Vol. 399, pages 77-82) Local circumferential pressure stress = I*P*Ri / t =1,430.324 kgf/cm2 Local longitudinal pressure stress = I*P*Ri / (2*t) =715.162 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 2,490.27 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,483.26 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.



3C* 23.3713 0.0262 0 0 0 0 -38.739 -38.739 -38.739 -38.739

4C* 21.1296 0.0262 -35.013 -35.013 -35.013 -35.013 0 0 0 0

1C 0.2234 0.0262 0 0 0 0 -248.043 248.043 -248.043 248.043

2C-1 0.1683 0.0262 -186.876 186.876 -186.876 186.876 0 0 0 0

3A* 1.4377 0.0262 0 0 0 0 -23.342 -23.342 23.342 23.342

1A 0.101 0.0262 0 0 0 0 -1,098.334 1,098.334 1,098.334 -

1,098.334

3B* 5.423 0.0262 -87.954 -87.954 87.954 87.954 0 0 0 0

1B-1 0.0593 0.0262 -644.855 644.855 644.855 -644.855 0 0 0 0

Pressure stress* 1,430.324 1,430.324 1,430.324 1,430.324 1,196.764 1,196.764 1,196.764 1,196.764

Total circumferential stress 475.626 2,139.087 1,941.244 1,025.286 -211.694 2,481.06 2,031.658 331.075

Primary membrane circumferential stress* 1,307.357 1,307.357 1,483.265 1,483.265 1,134.683 1,134.683 1,181.367 1,181.367

3C* 23.3713 0.0262 -38.739 -38.739 -38.739 -38.739 0 0 0 0

4C* 21.1296 0.0262 0 0 0 0 -35.013 -35.013 -35.013 -35.013

1C-1 0.2161 0.0262 -239.887 239.887 -239.887 239.887 0 0 0 0

2C 0.1727 0.0262 0 0 0 0 -191.727 191.727 -191.727 191.727

4A* 1.7057 0.0262 0 0 0 0 -27.701 -27.701 27.701 27.701

2A 0.0622 0.0262 0 0 0 0 -676.352 676.352 676.352 -676.352

4B* 1.5224 0.0262 -24.678 -24.678 24.678 24.678 0 0 0 0

2B-1 0.1014 0.0262 -1,102.693 1,102.693 1,102.693 -

1,102.693 0 0 0 0

Pressure stress* 598.382 598.382 598.382 598.382 715.162 715.162 715.162 715.162

Total longitudinal stress -807.615 1,877.546 1,447.127 -278.486 -215.631 1,520.527 1,192.475 223.224


Shear from Mt 107.007 107.007 107.007 107.007 107.007 107.007 107.007 107.007




Combined stress (PL+Pb+Q) 1,305.318 2,185.42 1,958.75 1,317.411 -308.225 2,490.27 2,048.321 408.202


V-8601 286


2 - Ri2)) + M*Ro / I

= 10.55*1.02*25.09 / (2*3.69) - 149.9 / (π*(30.162 - 25.092))*100 + 54,799.4*30.16 / 338,924.9*100 = 507.249 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Longitudinal stress in the nozzle wall due to external pressure + external loads σn (Pm) = ABS(P*Ri / (2*tn) - Pr / (π*(Ro

2 - Ri2)) - M*Ro / I)


2 + Vc2)0.5 / (π*Ri*tn)*100





A required


A welds treq tmin








V-8601 287


= MAX(38.18, 19.09 + (11.07 - 0) + (15 - 0))= 45.16 mm


= MIN(2.5*(15 - 0), 2.5*(11.07 - 0) + 0) = 27.69 mm


= 17.6294*19.09 / (1,180*1 - 0.6*17.6294)= 0.29 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*16,034.29 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 23,258 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.58 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 16,034.29 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 23,258 / (π*1,002.52*1,180*1.2)

* 98066.5| = 5.49 mm


= 17.6294*19.09 / (1,180*1 - 0.6*17.6294) + 0= 0.29 mm


= max[ 0.29 , 1.69 ] = 1.69 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm

V-8601 288


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.42 , 15 ] = 3.42 mm


= max[ 1.69 , 3.42 ] = 3.42 mm




A required


A welds treq tmin









= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm

Nozzle required thickness per UG-28 trn = 0.39 mm From UG-37(d)(1) required thickness tr = 9 mm

V-8601 289

Required thickness tr in longitudinal direction (windward) tr = -P*R / (2*S*Ks + 0.4*P) - 0.6*W / (2*π*Rm*S*Ks) * 98.0665 + M / (π*Rm

2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*13,899.44 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 9,112.2 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.51 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 13,899.44 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 9,112.2 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 1.13 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.55 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-28 = 6.87 mm ta UG-22 = 6.87 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.39 , 6.87 ] = 6.87 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 9.42 , 7.5 ] = 7.5 mm


= max[ 6.87 , 7.5 ] = 7.5 mm


= 4*158.27 / (3*(60.32 / 0.39)) = 1.37 bar


V-8601 290

PSV (N7) ASME Section VIII Division 1, 2010 Edition Metric




Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 4 Sch 160 DN 100 Pad material specification: SA-516 60 (II-D Metric p. 10, ln. 27) (normalized) Pad diameter: 240 mmFlange description: NPS 4 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3024) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.2329 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 135° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 4,900 mm End of nozzle to shell center: 1,255 mm Nozzle inside diameter, new: 87.33 mm Nozzle nominal wall thickness: 13.49 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 168.8 mm Projection available outside vessel to flange face, Lf: 245 mm Pad is split: No

V-8601 291





A required


A welds treq tmin

8.9393 17.059 0.0006 3.1684 -- 12.6526 1.2374 11.27 11.8


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

10,756 20,526 37,254 6,923 51,072 22,148 41,062




Nozzle to pad fillet (Leg41) 5.24 8.4 weld size is adequate



Calculations for internal pressure 10.55 bar @ 150 °C Fig UCS-66.2 general note (1) applies. Nozzle is impact test exempt to -105 °C per UCS-66(b)(3) (coincident ratio = 0.2313). External nozzle loadings per UG-22 govern the coincident ratio used. Pad impact test exemption temperature from Fig UCS-66M Curve D = -45.13 °C 17 °C MDMT reduction per UCS-68(c) applies. Fig UCS-66.1M MDMT reduction = 26.1 °C, (coincident ratio = 0.5608) Rated MDMT of -88.23°C is limited to -48°C by UCS-66(b)(2). Nozzle UCS-66 governing thk: 11.8 mm Nozzle rated MDMT: -105 °C Pad UCS-66 governing thickness: 15 mm Pad rated MDMT: -48 °C Parallel Limit of reinforcement per UG-40 LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(99.33, 49.66 + (13.49 - 6) + (15 - 6))= 99.33 mm


= MIN(2.5*(15 - 6), 2.5*(13.49 - 6) + 15) = 22.5 mm


= 10.5525*49.66 / (1,180*1 - 0.6*10.5525)= 0.45 mm

V-8601 292


= 10.5525*1,001 / (1,180*1 - 0.6*10.5525)= 9 mm


2*S*Ks) * 98066.5

= |10.5525*1,001 / (2*1,180*1.2 + 0.4*10.5525) - 0.6*2,399.44 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 819.7 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.73 mm


2*S*Ks) * 98066.5

= |10.5525*1,001 / (2*1,180*1.2 + 0.4*10.5525) - 2,399.44 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 819.7 / (π*1,005.52*1,180*1.2)

* 98066.5| = 3.68 mm


= (99.33*9*1 + 2*7.49*9*1*(1 - 1)) / 100 = 8.9393 cm2


= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (99.33*(1*9 - 1*9) - 2*7.49*(1*9 - 1*9)*(1 - 1)) / 100= 0.0006 cm2

= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (2*(9 + 7.49)*(1*9 - 1*9) - 2*7.49*(1*9 - 1*9)*(1 - 1)) / 100= 0 cm2


= 5*(tn - trn)*fr2*t = (5*(7.49 - 0.45)*1*9) / 100 = 3.1684 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(7.49 - 0.45)*(2.5*7.49 + 15)*1) / 100= 4.7477 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


V-8601 293

A42 = Leg2*fr4

= (02*1) / 100 = 0 cm2

(Part of the weld is outside of the limits) A5 = (Dp - d - 2*tn)*te*fr4

= ((198.65 - 99.33 - 2*7.49)*15*1) / 100 = 12.6526 cm2

Area = A1 + A2 + A41 + A42 + A5

= 0.0006 + 3.1684 + 1.2374 + 0 + 12.6526 = 17.059 cm2

As Area >= A the reinforcement is adequate. UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 7.49 mm

tc(min) = lesser of 6 mm or 0.7*tmin = 5.24 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm




= 10.5525*49.66 / (1,180*1 - 0.6*10.5525) + 6= 6.45 mm


= max[ 6.45 , 7.5 ] = 7.5 mm


= 10.5525*1,001 / (1,180*1 - 0.6*10.5525) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 11.27 , 15 ] = 11.27 mm


= max[ 7.5 , 11.27 ] = 11.27 mm


V-8601 294






Strength of welded joints: (1) Inner fillet weld in shear (π / 2)*Nozzle OD*Leg*Si = (π / 2)*114.3*12*589.599 = 12,702.96 kgf (2) Outer fillet weld in shear (π / 2)*Pad OD*Leg*So = (π / 2)*240*12*589.599 = 26,672.87 kgf (3) Nozzle wall in shear (π / 2)*Mean nozzle dia*tn*Sn = (π / 2)*106.81*7.49*842.285 = 10,581.15 kgf (4) Groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*114.3*9*890.415 = 14,388.87 kgf (6) Upper groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*114.3*15*890.415 = 23,980.07 kgf Loading on welds per UG-41(b)(1) W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (893.925 - 0.0645 + 2*7.49*1*(1*9 - 1*9))*1,203.264= 10,755.61 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (316.8381 + 1,265.2561 + 123.7417 + 0)*1,203.264= 20,525.73 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (316.8381 + 0 + 123.7417 + 0 + 2*7.49*9*1)*1,203.264= 6,923.12 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (316.8381 + 0 + 1,265.2561 + 123.7417 + 0 + 0 + 2*7.49*9*1)*1,203.264= 22,147.5 kgf

Load for path 1-1 lesser of W or W1-1 = 10,755.61 kgf Path 1-1 through (2) & (3) = 26,672.87 + 10,581.15 = 37,254.02 kgf Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2). Load for path 2-2 lesser of W or W2-2 = 6,923.12 kgf Path 2-2 through (1), (4), (6) = 12,702.96 + 14,388.87 + 23,980.07 = 51,071.9 kgf Path 2-2 is stronger than W2-2 so it is acceptable per UG-41(b)(1). Load for path 3-3 lesser of W or W3-3 = 10,755.61 kgf Path 3-3 through (2), (4) = 26,672.87 + 14,388.87 = 41,061.75 kgf Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2).

V-8601 295

Applied Loads Radial load: Pr = 344.66 kgf Circumferential moment: Mc = 182.53 kgf-m Circumferential shear: Vc = 243.71 kgf Longitudinal moment: ML = 182.53 kgf-m Longitudinal shear: VL = 243.71 kgf Torsion moment: Mt = 257.99 kgf-m Internal pressure: P = 10.55 bar Mean shell radius: Rm = 1,005.5 mm Local shell thickness: t = 9 mm Shell yield stress: Sy = 1,988.45 kgf/cm2

Maximum stresses due to the applied loads at the pad edge (includes pressure) Rm / t = 1,005.5 / 9 = 111.7157 Pressure stress intensity factor, I = 1 (derived from PVP-Vol. 399, pages 77-82) Local circumferential pressure stress = I*P*Ri / t =1,196.764 kgf/cm2 Local longitudinal pressure stress = I*P*Ri / (2*t) =598.382 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 2,313.03 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,366.06 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

V-8601 296



3C* 12.0903 0.1044 0 0 0 0 -46.051 -46.051 -46.051 -46.051

4C* 16.5186 0.1044 -62.925 -62.925 -62.925 -62.925 0 0 0 0

1C 0.0816 0.1044 0 0 0 0 -208.319 208.319 -208.319 208.319

2C-1 0.0486 0.1044 -124.092 124.092 -124.092 124.092 0 0 0 0

3A* 4.3835 0.1044 0 0 0 0 -84.228 -84.228 84.228 84.228

1A 0.0806 0.1044 0 0 0 0 -1,037.73 1,037.73 1,037.73 -

1,037.73

3B* 12.0899 0.1044 -232.224 -232.224 232.224 232.224 0 0 0 0

1B-1 0.0304 0.1044 -391.399 391.399 391.399 -391.399 0 0 0 0

Pressure stress* 1,196.764

1,196.764

1,196.764

1,196.764

1,196.764

1,196.764

1,196.764

1,196.764

Total circumferential stress 386.125 1,417.106 1,633.37 1,098.75

6 -179.564 2,312.535

2,064.351 405.53

Primary membrane circumferential stress* 901.616 901.616 1,366.06

3 1,366.063

1,066.485

1,066.485

1,234.941

1,234.941

3C* 12.0903 0.1044 -46.051 -46.051 -46.051 -46.051 0 0 0 0

4C* 16.5186 0.1044 0 0 0 0 -62.925 -62.925 -62.925 -62.925

1C-1 0.0799 0.1044 -203.96 203.96 -203.96 203.96 0 0 0 0

2C 0.0497 0.1044 0 0 0 0 -126.904 126.904 -126.904 126.904

4A* 7.7729 0.1044 0 0 0 0 -149.332 -149.332 149.332 149.332

2A 0.0411 0.1044 0 0 0 0 -529.2 529.2 529.2 -529.2

4B* 4.3636 0.1044 -83.806 -83.806 83.806 83.806 0 0 0 0

2B-1 0.0422 0.1044 -543.332 543.332 543.332 -543.332 0 0 0 0

Pressure stress* 598.382 598.382 598.382 598.382 598.382 598.382 598.382 598.382

Total longitudinal stress -278.767 1,215.817 975.508 296.765 -269.979 1,042.22

9 1,087.085 282.493


Shear from Mt 31.708 31.708 31.708 31.708 31.708 31.708 31.708 31.708




Combined stress (PL+Pb+Q) 669.392 1,424.347

1,634.284 1,099.53 -276.236 2,313.02

7 2,065.898 416.779


V-8601 297

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Rm / t = 1,005.5 / 24 = 41.8949 Pressure stress intensity factor, I = 0.37501 (derived from PVP-Vol. 399, pages 77-82) Local circumferential pressure stress = I*P*Ri / t =448.769 kgf/cm2 Local longitudinal pressure stress = I*P*Ri / (2*t) =224.42 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 1,649.47 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,194.51 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.



3C* 7.7799 0.0497 0 0 0 0 -11.108 -11.108 -11.108 -11.108

4C* 7.9979 0.0497 -11.39 -11.39 -11.39 -11.39 0 0 0 0

1C 0.1898 0.0497 0 0 0 0 -68.127 68.127 -68.127 68.127

2C-1 0.1504 0.0497 -53.996 53.996 -53.996 53.996 0 0 0 0

3A* 0.5841 0.0497 0 0 0 0 -8.859 -8.859 8.859 8.859

1A 0.1059 0.0497 0 0 0 0 -402.648 402.648 402.648 -402.648

3B* 2.4035 0.0497 -36.349 -36.349 36.349 36.349 0 0 0 0

1B-1 0.0587 0.0497 -223.154 223.154 223.154 -223.154 0 0 0 0

Pressure stress* 448.769 448.769 448.769 448.769 1,196.764 1,196.764 1,196.764 1,196.764

Total circumferential stress 123.881 678.18 642.886 304.569 706.022 1,647.572 1,529.034 859.994

Primary membrane circumferential stress* 401.031 401.031 473.728 473.728 1,176.797 1,176.797 1,194.514 1,194.514

3C* 7.7799 0.0497 -11.108 -11.108 -11.108 -11.108 0 0 0 0

4C* 7.9979 0.0497 0 0 0 0 -11.39 -11.39 -11.39 -11.39

1C-1 0.1934 0.0497 -69.463 69.463 -69.463 69.463 0 0 0 0

2C 0.1503 0.0497 0 0 0 0 -53.925 53.925 -53.925 53.925

4A* 0.801 0.0497 0 0 0 0 -12.093 -12.093 12.093 12.093

2A 0.0617 0.0497 0 0 0 0 -234.614 234.614 234.614 -234.614

4B* 0.6144 0.0497 -9.281 -9.281 9.281 9.281 0 0 0 0

2B-1 0.1007 0.0497 -382.891 382.891 382.891 -382.891 0 0 0 0

Pressure stress* 598.382 598.382 598.382 598.382 224.42 224.42 224.42 224.42

Total longitudinal stress 125.638 1,030.348 909.982 283.126 -87.602 489.477 405.811 44.434


Shear from Mt 52.379 52.379 52.379 52.379 52.379 52.379 52.379 52.379




Combined stress (PL+Pb+Q) 182.798 1,039.628 917.927 341.832 799.108 1,649.47 1,531.987 864.072


V-8601 298


2 - Ri2)) + M*Ro / I

= 10.55*1.02*49.66 / (2*5.8) - 344.66 / (π*(57.152 - 49.662))*100 + 258,134.2*57.15 / 3,600,702*100 = 442.049 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Shear stress in the nozzle wall due to external loads σshear = (VL

2 + Vc2)0.5 / (π*Ri*tn)*100


2*tn)*100000 = 258 / (2*π*49.662*7.49)*100000 = 222.346 kgf/cm2 σtotal = σshear + σtorsion = 29.504 + 222.346 = 251.85 kgf/cm2 UG-45: The total combined shear stress (251.85 kgf/cm2) is below than the allowable (0.7*Sn = 0.7*1,203.264 = 842.285 kgf/cm2) Reinforcement Calculations for MAP The vessel wall thickness governs the MAP of this nozzle.




A required


A welds treq tmin

13.0988 20.1145 -- 9.6219 -- 9.0526 1.44 5.27 11.8


Weld load W

Weld load W1-1

Path 1-1strength

Weld load W2-2

Path 2-2strength

Weld loadW3-3

Path 3-3strength

15,761 24,203 44,663 18,179 60,663 29,072 50,653







V-8601 299


= MAX(87.33, 43.66 + (13.49 - 0) + (15 - 0))= 87.33 mm


= MIN(2.5*(15 - 0), 2.5*(13.49 - 0) + 15) = 37.5 mm


= 17.6294*43.66 / (1,180*1 - 0.6*17.6294)= 0.66 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*3,102.37 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 2,275 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.21 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 3,102.37 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 2,275 / (π*1,002.52*1,180*1.2) *

98066.5| = 6.09 mm


= (87.33*15*1 + 2*13.49*15*1*(1 - 1)) / 100= 13.0988 cm2


= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (87.33*(1*15 - 1*15) - 2*13.49*(1*15 - 1*15)*(1 - 1)) / 100= 0 cm2


V-8601 300


= 5*(tn - trn)*fr2*t = (5*(13.49 - 0.66)*1*15) / 100 = 9.6219 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(13.49 - 0.66)*(2.5*13.49 + 15)*1) / 100= 12.5006 cm2

A41 = Leg2*fr3

= (122*1) / 100 = 1.44 cm2

A42 = Leg2*fr4

= (02*1) / 100 = 0 cm2


= ((174.65 - 87.33 - 2*13.49)*15*1) / 100 = 9.0526 cm2

Area = A1 + A2 + A41 + A42 + A5

= 0 + 9.6219 + 1.44 + 0 + 9.0526 = 20.1145 cm2

As Area >= A the reinforcement is adequate. UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 13.49 mm





= 17.6294*43.66 / (1,180*1 - 0.6*17.6294) + 0= 0.66 mm


= max[ 0.66 , 2.3 ] = 2.3 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm

V-8601 301


= min[ 5.27 , 15 ] = 5.27 mm


= max[ 2.3 , 5.27 ] = 5.27 mm

Available nozzle wall thickness new, tn = 0.875*13.49 = 11.8 mm The nozzle neck thickness is adequate. Allowable stresses in joints UG-45 and UW-15(c) Groove weld in tension: 0.74*1,203.264 = 890.415 kgf/cm2





Strength of welded joints: (1) Inner fillet weld in shear (π / 2)*Nozzle OD*Leg*Si = (π / 2)*114.3*12*589.599 = 12,702.96 kgf (2) Outer fillet weld in shear (π / 2)*Pad OD*Leg*So = (π / 2)*240*12*589.599 = 26,672.87 kgf (3) Nozzle wall in shear (π / 2)*Mean nozzle dia*tn*Sn = (π / 2)*100.81*13.49*842.285 = 17,989.63 kgf (4) Groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*114.3*15*890.415 = 23,980.07 kgf (6) Upper groove weld in tension (π / 2)*Nozzle OD*tw*Sg = (π / 2)*114.3*15*890.415 = 23,980.07 kgf Loading on welds per UG-41(b)(1) W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (1,309.8754 - 0 + 2*13.49*1*(1*15 - 1*15))*1,203.264= 15,761.28 kgf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (962.1916 + 905.256 + 143.9997 + 0)*1,203.264= 24,203.05 kgf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (962.1916 + 0 + 143.9997 + 0 + 2*13.49*15*1)*1,203.264= 18,179.09 kgf

W3-3 = (A2 + A3 + A5 + A41 + A42 + A43 + 2*tn*t*fr1)*Sv

= (962.1916 + 0 + 905.256 + 143.9997 + 0 + 0 + 2*13.49*15*1)*1,203.264= 29,071.72 kgf

V-8601 302

Load for path 1-1 lesser of W or W1-1 = 15,761.28 kgf Path 1-1 through (2) & (3) = 26,672.87 + 17,989.63 = 44,662.51 kgf Path 1-1 is stronger than W so it is acceptable per UG-41(b)(2). Load for path 2-2 lesser of W or W2-2 = 15,761.28 kgf Path 2-2 through (1), (4), (6) = 12,702.96 + 23,980.07 + 23,980.07 = 60,663.1 kgf Path 2-2 is stronger than W so it is acceptable per UG-41(b)(2). Load for path 3-3 lesser of W or W3-3 = 15,761.28 kgf Path 3-3 through (2), (4) = 26,672.87 + 23,980.07 = 50,652.94 kgf Path 3-3 is stronger than W so it is acceptable per UG-41(b)(2). Reinforcement Calculations for External Pressure




A required


A welds treq tmin

4.4699 17.0035 -- 3.1135 -- 12.6526 1.2374 7.5 11.8






Nozzle to pad fillet (Leg41) 5.24 8.4 weld size is adequate




= MAX(99.33, 49.66 + (13.49 - 6) + (15 - 6))= 99.33 mm


= MIN(2.5*(15 - 6), 2.5*(13.49 - 6) + 15) = 22.5 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*2,399.44 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 819.7 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.65 mm

V-8601 303


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 2,399.44 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 819.7 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.71 mm


= (0.5*(99.33*9*1 + 2*7.49*9*1*(1 - 1))) / 100= 4.4699 cm2


= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)= (99.33*(1*9 - 1*9) - 2*7.49*(1*9 - 1*9)*(1 - 1)) / 100= 0 cm2



= 5*(tn - trn)*fr2*t = (5*(7.49 - 0.57)*1*9) / 100 = 3.1135 cm2

= 2*(tn - trn)*(2.5*tn + te)*fr2 = (2*(7.49 - 0.57)*(2.5*7.49 + 15)*1) / 100= 4.6658 cm2

A41 = Leg2*fr3

= (11.122*1) / 100 = 1.2374 cm2


= (02*1) / 100 = 0 cm2


= ((198.65 - 99.33 - 2*7.49)*15*1) / 100 = 12.6526 cm2

Area = A1 + A2 + A41 + A42 + A5

= 0 + 3.1135 + 1.2374 + 0 + 12.6526 = 17.0035 cm2


V-8601 304

UW-16(c)(2) Weld Check Inner fillet: tmin = lesser of 19 mm or tn or te = 7.49 mm

tc(min) = lesser of 6 mm or 0.7*tmin = 5.24 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm



UG-45 Nozzle Neck Thickness Check ta UG-28 = 7.32 mm ta UG-22 = 7.32 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.57 , 7.32 ] = 7.32 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm


= min[ 11.27 , 7.5 ] = 7.5 mm


= max[ 7.32 , 7.5 ] = 7.5 mm


= 4*206.33 / (3*(114.3 / 0.57)) = 1.37 bar


V-8601 305

Wash Water Inlet (N8) ASME Section VIII Division 1, 2010 Edition Metric

tw(lower) = 15 mm Leg41 = 12 mm Leg43 = 0 mm hnew = 0 mm



Nozzle longitudinal joint efficiency: 1 Nozzle description: NPS 2 XX Heavy DN 50Flange description: NPS 2 Class 150 WN A105 Bolt Material: SA-193 B7 Bolt <= 64 (II-D Metric p. 334, ln. 32) Flange rated MDMT: -48°C (UCS-66(b)(3): Coincident ratio = 0.3042) (Flange rated MDMT = -105 °C (UCS-68(c) applies.) Bolts rated MDMT per Fig UCS-66 note (c) = -48 °C) Liquid static head on flange: 0.2667 bar ASME B16.5-2003 flange rating MAWP: 15.8 bar @ 150°C ASME B16.5-2003 flange rating MAP: 19.6 bar @ 25°C ASME B16.5-2003 flange hydro test: 30 bar @ 25°C PWHT performed: Yes Circumferential joint radiography: Full UW-11(a) Type 1 Nozzle orientation: 90° Local vessel minimum thickness: 15 mm Nozzle center line offset to datum line: 4,550 mm End of nozzle to shell center: 1,255 mm Nozzle inside diameter, new: 38.18 mm Nozzle nominal wall thickness: 11.07 mm Nozzle corrosion allowance: 6 mm Projection available outside vessel, Lpr: 181.5 mm Projection available outside vessel to flange face, Lf: 245 mm

V-8601 306




A required


A welds treq tmin









= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm

Inner Normal Limit of reinforcement per UG-40 LI = MIN(2.5*(t - C), 2.5*(ti - Cn - C))

= MIN(2.5*(15 - 6), 2.5*(11.07 - 6 - 6)) = 0 mm


= 10.5526*25.09 / (1,180*1 - 0.6*10.5526)= 0.23 mm


= 10.5526*1,001 / (1,180*1 - 0.6*10.5526)= 9 mm

V-8601 307


2*S*Ks) * 98066.5

= |10.5526*1,001 / (2*1,180*1.2 + 0.4*10.5526) - 0.6*3,110.99 / (2*π*1,005.5*1,180*1.2) * 98.0665 + 1,639.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.74 mm


2*S*Ks) * 98066.5

= |10.5526*1,001 / (2*1,180*1.2 + 0.4*10.5526) - 3,110.99 / (2*π*1,005.5*1,180*1.2) * 98.0665 - 1,639.8 /

(π*1,005.52*1,180*1.2) * 98066.5| = 3.65 mm


= 10.5526*25.09 / (1,180*1 - 0.6*10.5526) + 6= 6.23 mm


= max[ 6.23 , 6.95 ] = 6.95 mm


= 10.5526*1,001 / (1,180*1 - 0.6*10.5526) + 6= 15 mm


= max[ 15 , 7.5 ]= 15 mm


= min[ 9.42 , 15 ] = 9.42 mm


= max[ 6.95 , 9.42 ] = 9.42 mm


V-8601 308

Applied Loads Radial load: Pr = 149.9 kgf Circumferential moment: Mc = 38.75 kgf-m Circumferential shear: Vc = 106.05 kgf Longitudinal moment: ML = 38.75 kgf-m Longitudinal shear: VL = 106.05 kgf Torsion moment: Mt = 55.06 kgf-m Internal pressure: P = 10.55 bar Mean shell radius: Rm = 1,005.5 mm Local shell thickness: t = 9 mm Shell yield stress: Sy = 1,988.45 kgf/cm2

Maximum stresses due to the applied loads at the nozzle OD (includes pressure) Rm / t = 1,005.5 / 9 = 111.7157 Pressure stress intensity factor, I = 1.19513 (derived from PVP-Vol. 399, pages 77-82) Local circumferential pressure stress = I*P*Ri / t =1,430.324 kgf/cm2 Local longitudinal pressure stress = I*P*Ri / (2*t) =715.162 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 2,490.27 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 1,483.26 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

V-8601 309



3C* 23.3713 0.0262 0 0 0 0 -38.739 -38.739 -38.739 -38.739

4C* 21.1296 0.0262 -35.013 -35.013 -35.013 -35.013 0 0 0 0

1C 0.2234 0.0262 0 0 0 0 -248.043 248.043 -248.043 248.043

2C-1 0.1683 0.0262 -186.876 186.876 -186.876 186.876 0 0 0 0

3A* 1.4377 0.0262 0 0 0 0 -23.342 -23.342 23.342 23.342

1A 0.101 0.0262 0 0 0 0 -1,098.334

1,098.334

1,098.334

-1,098.334

3B* 5.423 0.0262 -87.954 -87.954 87.954 87.954 0 0 0 0

1B-1 0.0593 0.0262 -644.855 644.855 644.855 -644.855 0 0 0 0

Pressure stress* 1,430.324

1,430.324

1,430.324

1,430.324

1,196.764

1,196.764

1,196.764

1,196.764

Total circumferential stress 475.626 2,139.087

1,941.244

1,025.286 -211.694 2,481.06 2,031.65

8 331.075

Primary membrane circumferential stress*

1,307.357

1,307.357

1,483.265

1,483.265

1,134.683

1,134.683

1,181.367

1,181.367

3C* 23.3713 0.0262 -38.739 -38.739 -38.739 -38.739 0 0 0 0

4C* 21.1296 0.0262 0 0 0 0 -35.013 -35.013 -35.013 -35.013

1C-1 0.2161 0.0262 -239.887 239.887 -239.887 239.887 0 0 0 0

2C 0.1727 0.0262 0 0 0 0 -191.727 191.727 -191.727 191.727

4A* 1.7057 0.0262 0 0 0 0 -27.701 -27.701 27.701 27.701

2A 0.0622 0.0262 0 0 0 0 -676.352 676.352 676.352 -676.352

4B* 1.5224 0.0262 -24.678 -24.678 24.678 24.678 0 0 0 0

2B-1 0.1014 0.0262 -1,102.693

1,102.693

1,102.693

-1,102.693

0 0 0 0

Pressure stress* 598.382 598.382 598.382 598.382 715.162 715.162 715.162 715.162

Total longitudinal stress -807.615 1,877.546

1,447.127 -278.486 -215.631 1,520.52

7 1,192.475 223.224


Shear from Mt 107.007 107.007 107.007 107.007 107.007 107.007 107.007 107.007




Combined stress (PL+Pb+Q) 1,305.318 2,185.42 1,958.75 1,317.41

1 -308.225 2,490.27 2,048.321 408.202


V-8601 310


2 - Ri2)) + M*Ro / I

= 10.55*1.02*25.09 / (2*3.69) - 149.9 / (π*(30.162 - 25.092))*100 + 54,799.4*30.16 / 338,924.9*100 = 507.248 kgf/cm2 The average primary stress Pm (see Division 2 5.6.a.1) across the nozzle wall due to internal pressure + external loads is acceptable ( ≤ S = 1,203.264 kgf/cm2) Longitudinal stress in the nozzle wall due to external pressure + external loads σn (Pm) = ABS(P*Ri / (2*tn) - Pr / (π*(Ro

2 - Ri2)) - M*Ro / I)


2 + Vc2)0.5 / (π*Ri*tn)*100





A required


A welds treq tmin








V-8601 311


= MAX(38.18, 19.09 + (11.07 - 0) + (15 - 0))= 45.16 mm


= MIN(2.5*(15 - 0), 2.5*(11.07 - 0) + 0) = 27.69 mm


= MIN(2.5*(15 - 0), 2.5*(11.07 - 0 - 0)) = 27.69 mm


= 17.6294*19.09 / (1,180*1 - 0.6*17.6294)= 0.29 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) = 15 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 0.6*3,917.03 / (2*π*1,002.5*1,180*1.2) * 98.0665 + 3,616.6 /

(π*1,002.52*1,180*1.2) * 98066.5| = 6.23 mm


2*S*Ks) * 98066.5

= |17.6294*995 / (2*1,180*1.2 + 0.4*17.6294) - 3,917.03 / (2*π*1,002.5*1,180*1.2) * 98.0665 - 3,616.6 / (π*1,002.52*1,180*1.2)

* 98066.5| = 6.06 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 11.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 6 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).

V-8601 312


= 17.6294*19.09 / (1,180*1 - 0.6*17.6294) + 0= 0.29 mm


= max[ 0.29 , 1.69 ] = 1.69 mm


= 17.6294*995 / (1,180*1 - 0.6*17.6294) + 0= 15 mm


= max[ 15 , 1.5 ]= 15 mm


= min[ 3.42 , 15 ] = 3.42 mm


= max[ 1.69 , 3.42 ] = 3.42 mm




A required


A welds treq tmin








V-8601 313


= MAX(50.18, 25.09 + (11.07 - 6) + (15 - 6))= 50.18 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6) + 0) = 12.69 mm


= MIN(2.5*(15 - 6), 2.5*(11.07 - 6 - 6)) = 0 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 0.6*3,110.99 / (2*π*1,005.5*874.0564*1.2) * 98.0665 + 1,639.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.63 mm


2*S*Ks) * 98066.5

= |-1.3697*1,001 / (2*874.0564*1.2 + 0.4*1.3697) - 3,110.99 / (2*π*1,005.5*874.0564*1.2) * 98.0665 - 1,639.8 /

(π*1,005.52*874.0564*1.2) * 98066.5| = 0.75 mm

This opening does not require reinforcement per UG-36(c)(3)(a) UW-16(c) Weld Check Fillet weld: tmin = lesser of 19 mm or tn or t = 5.07 mm tc(min) = lesser of 6 mm or 0.7*tmin = 3.55 mm tc(actual) = 0.7*Leg = 0.7*12 = 8.4 mm The fillet weld size is satisfactory. Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e). UG-45 Nozzle Neck Thickness Check ta UG-28 = 6.87 mm ta UG-22 = 6.87 mm ta = max[ ta UG-28 , ta UG-22 ]

= max[ 6.39 , 6.87 ] = 6.87 mm


= 1.3697*1,001 / (1,180*1 - 0.6*1.3697) + 6= 7.16 mm


= max[ 7.16 , 7.5 ] = 7.5 mm

V-8601 314


= min[ 9.42 , 7.5 ] = 7.5 mm


= max[ 6.87 , 7.5 ] = 7.5 mm


= 4*158.27 / (3*(60.32 / 0.39)) = 1.37 bar


V-8601 315

Lifting and Tailing Lugs Calculation Design Conditions


V-8601 316

Lifting Lug

Geometry Inputs

Attached To Shell

Material A 283 Gr.C

Distance of Lift Point From Datum 6,862 mm

Angular Position 90.00° and 270.00°

Length of Lug, L 400 mm

Width of Lug, B 300 mm

Thickness of Lug, t 22 mm

Hole Diameter, d 60 mm

Pin Diameter, Dp 30.28 mm

Lug Diameter at Pin, D 300 mm

Weld Size, tw 12 mm

Weld Length, b1 100 mm

Weld Length, d2 150 mm

Width of Pad, Bp 500 mm

Length of Pad, Lp 250 mm

Pad Thickness, tp 12 mm

Pad Weld Size, twp 12 mm

Weld Length, L3 200 mm

Load Angle from Vertical, φ 0.0000 °

Has Brace Plate No

V-8601 317

Intermediate Values

Load Factor 1.5000

Vessel Weight (new, incl. Load Factor), W 26900 kg

Lug Weight (new), Wlug 94 kg (Qty=2)

Distance from Center of Gravity to Top Lug, l1 5,578.73 mm

Distance from Center of Gravity to Tail Lug, l2 8,970.69 mm

Distance from Vessel Center Line to Tail Lug, l3 1,172 mm

Allowable Stress, Tensile, σt 1404.734 kg/cm²

Allowable Stress, Shear, σs 936.489 kg/cm²

Allowable Stress, Bearing, σp 2107.101 kg/cm²

Allowable Stress, Bending, σb 1560.893 kg/cm²

Allowable Stress, Weld Shear, τallowable 936.489 kg/cm²

Allowable Stress set to 1/3 Sy per ASME B30.20 No

Summary Values

Required Lift Pin Diameter, dreqd 30.24 mm

Required Lug Thickness, treqd 21.08 mm

Lug Stress Ratio, σratio 0.66

Weld Shear Stress Ratio, τratio 0.75

Lug Design Acceptable

Local Stresses Acceptable

Maximum Out of Plane Lift Angle - Weak Axis Bending 4.02°

COMPRESS recommends a spreader beam be used to prevent weak axis bending of the top lugs. No consideration is given for any bracing plate from the lug to the vessel. Lift Forces Lift force on lugs during rotational lift (0° ≤ α ≤ 90°): 2*Ftop = W*(l2*cos(α) + l3*sin(α)) / (l1*cos(α) + l2*cos(α) + l3*sin(α) )Ftail = W - (2*F)

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α [°] Ftop[kgf] Ftail[kgf]

0 8,292.7 10,314.2

15 8,401.7 10,096.3

30 8,521.9 9,855.9

45 8,677.2 9,545.3

60 8,924.2 9,051.4

75 9,484.8 7,930.1

90 13,449.9 0

111 8,372.2 10,155.2

92 8,357.7 10,184.3

123 8,379.6 10,140.6 1Lift angle at maximum lug stress. 2Lift angle at maximum weld stress. 3Lift angle at maximum pad weld stress.

Shell angle at lift lug 0.00° Lug Pin Diameter - Shear stress dreqd = (2*Fv / (π*σs))0.5

= (2*13,449.9 / (π*936.5))0.5 = 30.24 mm

dreqd / Dp = 30.24 / 30.28 = 1.00 Acceptable σ = Fv / A

= Fv / (2*(0.25*π*Dp2))

= 13,449.9 / (2*(0.25*π*30.282)) = 934.1 kg/cm2

σ / σs = 934.1 / 936.5 = 1 Acceptable Lug Thickness - Tensile stress treqd = Fv / ((D - d)*σt)

= 13,449.9 / ((300 - 60)*1,404.7) = 3.99 mm treqd / t = 3.99 / 22 = 0.18 Acceptable σ = Fv / A

= Fv / ((D - d)*t) = 13,449.9 / ((300 - 60)*22) = 254.7 kg/cm2

σ / σt = 254.7 / 1,404.7 = 0.18 Acceptable Lug Thickness - Bearing stress treqd = Fv / (Dp*σp)

= 13,449.9 / (30.28*2,107.1) = 21.08 mm

treqd / t = 21.08 / 22 = 0.96 Acceptable σ = Fv / Abearing

= Fv / (Dp*(t)) = 13,449.9 / (30.28*(22)) = 2,019.3 kg/cm2

σ / σp = 2,019.3 / 2,107.1 = 0.96 Acceptable

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Lug Thickness - Shear stress treqd = [Fv / σs] / (2*Lshear)

= (13,449.9 / 936.5) / (2*121.58) = 5.91 mm

treqd / t = 5.91 / 22 = 0.27 Acceptable τ = Fv / Ashear

= Fv / (2*t*Lshear ) = 13,449.9 / (2*22*121.58) = 251.4 kg/cm2

τ / σs = 251.4 / 936.5 = 0.27 Acceptable Shear stress length (per Pressure Vessel and Stacks, A. Keith Escoe)

φ

= 55*Dp / d

= 55*30.28 / 60 = 27.753° Z = 0.5*(D - d) + 0.5*Dp*(1 - cos(φ))

= 0.5*(300 - 60) + 0.5*30.28*(1 - cos(27.753)) = 121.74 mm Z1 = 0.5*D - sqr(0.25*D*D - (0.5*Dp*sin(φ))2)

= 0.5*300 - sqr(0.25*300*300 - (0.5*30.28*sin(27.753))2) = 0.17 mm Lshear = Z - Z1 = 121.58 mm Lug Plate Stress Lug stress, tensile + bending, during rotational lift: σ ratio = [Ften / (Aten*σt)] + [Mbend / (Zbend*σb)] ≤ 1

= [(Ftop(α)*sin(α) ) / (t*B*σt)] + [(6*Ftop(α) *L*cos(α) ) / (t*B2 * σb)] ≤ 1= 8,372.2*sin(11.0) / (22*300*1,404.7) + 6*(8,372.2)*400*cos(11.0) / (22*3002*1,560.9)= 0.66 Acceptable

Weak Axis Bending Stress Maximum lift cable angle from vertical θ = 4.02°

σb = M / Z = (F*sin(θ)* L1) / Z F*cos(θ) = 0.5*W => F = 0.5*W / cos(θ) θ = arctan( (2*σb*Z ) / (W* L1) ) θ = arctan( (2*1,560.9*(300*222/6) ) / (26,899.7*400*100) ) = 4.02°

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Weld Stress

Weld stress, direct and torsional shear, during rotational lift: Direct shear: Maximum weld shear stress occurs at lift angle 9.00°; lift force = 8,357.7 kgf Aweld = A1 + A2 + A3

= 0.707*tw*((d1 + b1) + (2*d2 + b2) + (d3 + b3)) = 0.707*12*((200 + 100) + (2*150 + 100) + (200 + 100))= 2,545.2 + 3,393.6 + 2,545.2 = 8,484 mm2

τt = Fr*cos(α) / Aweld = 8,357.7*cos(9.0) / 8,484 = 97.3 kg/cm2 τs = Fr*sin(α) / Aweld = 8,357.7*sin(9.0) / 8,484 = 15.4 kg/cm2 Torsional shear: Weld centroid: Weld areas Ai = 0.707*tw*Li A1 = 0.707*12*200 = 1,696.8 mm2

A2 = 0.707*12*100 = 848.4 mm2 A3 = 0.707*12*150 = 1,272.6 mm2

A4 = 0.707*12*100 = 848.4 mm2 A5 = 0.707*12*150 = 1,272.6 mm2

A6 = 0.707*12*100 = 848.4 mm2 A7 = 0.707*12*200 = 1,696.8 mm2

Aweld torsion = Σ Ai = 8,484 mm2 Weld centroid locations x1 = 0 mm y1 = 100 mm x2 = 50 mm y2 = 0 mm x3 = 100 mm y3 = 75 mm x4 = 150 mm y4 = 150 mm x5 = 200 mm y5 = 75 mm x6 = 250 mm y6 = 0 mm x7 = 300 mm y7 = 100 mm Xbar = Σ (Ai*xi) / ΣAi Ybar = Σ (Ai*yi) / ΣAi Xbar = (1,696.8*0 + 848.4*50 + 1,272.6*100 + 848.4*150 + 1,272.6*200 + 848.4*250 + 1,696.8*300 ) / 8,484 = 150 mm Ybar = (1,696.8*100 + 848.4*0 + 1,272.6*75 + 848.4*150 + 1,272.6*75 + 848.4*0 + 1,696.8*100 ) / 8,484 = 77.5 mm

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Radius to centroid locations ri = sqr((Xbar - xi)2 + (Ybar - yi)2 ) r1 = sqr( (150 - 0)2 + (77.5 - 100)2 ) = 151.68 mm r2 = sqr( (150 - 50)2 + (77.5 - 0)2 ) = 126.52 mm r3 = sqr( (150 - 100)2 + (77.5 - 75)2 ) = 50.06 mm r4 = sqr( (150 - 150)2 + (77.5 - 150)2 ) = 72.5 mm r5 = sqr( (150 - 200)2 + (77.5 - 75)2 ) = 50.06 mm r6 = sqr( (150 - 250)2 + (77.5 - 0)2 ) = 126.52 mm r7 = sqr( (150 - 300)2 + (77.5 - 100)2 ) = 151.68 mm Polar Moment of Area Ji = 0.707*tw*(Li

3) / 12 J1 = 0.707*12*(2003) / 12 = 5656000 mm4

J2 = 0.707*12*(1003) / 12 = 707000 mm4 J3 = 0.707*12*(1503) / 12 = 2386125 mm4

J4 = 0.707*12*(1003) / 12 = 707000 mm4 J5 = 0.707*12*(1503) / 12 = 2386125 mm4

J6 = 0.707*12*(1003) / 12 = 707000 mm4 J7 = 0.707*12*(2003) / 12 = 5656000 mm4

J = Σ (Ji + Ai*ri2) Parallel axis theorem

J = [5656000.0000 + 1,696.8*(151.68)2 + (707000.0000 + 848.4*(126.52)2) + (2386125.0000 + 1,272.6*(50.06)2) + (707000.0000 + 848.4*(72.5)2) + (2386125.0000 + 1,272.6*(50.06)2) + (707000.0000 + 848.4*(126.52)2) + (5656000.0000 + 1,696.8*(151.68)2) ] = 134276976 mm4

Radial distance from centroid to weld: r = sqr( Xbar

2 + (L3 - Ybar)2 ) = sqr( 1502 + (200 - 77.5)2 ) = 193.67 mm

θr = arctan( (L3 - Ybar) / (Xbar) )

= arctan( 122.5 / 150 ) = 39.24° τ 2 = M * r / J

= [F(α)*cos(α)*(L + L3 - Ybar)] * r / J = (8,357.7*cos(9.0)*522.5)*193.67 / 134276975.0000 = 622.1 kg/cm2

τ ratio = sqr( (τt + τ2*sin(θr))2 + (τs + τ2*cos(θr))2 ) / τallowable ≤ 1

= sqr ( (97.3 + 622.1*sin(39.24))2 + (15.4 + 622.1*cos(39.24) )2 ) / 936.5 = 0.75 Acceptable

Pad Weld Stress Direct shear: Maximum weld shear stress occurs at lift angle 12.00°; lift force = 8,379.6 kgf Aweld = 0.707*twp*(2*Lp + Bp)

= 0.707*12*(2*250 + 500) = 8,484 mm2 τt = Fr*cos(α) / Aweld = 8,379.6*cos(12.0) / 8,484 = 96.6 kg/cm2 τs = Fr*sin(α) / Aweld = 8,379.6*sin(12.0) / 8,484 = 20.5 kg/cm2 Torsional shear: Weld centroid: Ybarp = Lp

2 / (2*Lp + Bp) = 2502 / (2*250 + 500) = 62.5 mm

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Second polar moment of area: Jp = 0.707*twp*((8*Lp

3 + 6*Lp*Bp2 + Bp

3) / 12 - Lp4 / (2*Lp + Bp))

= 0.707*12* ( (8*2503 + 6*250*5002 + 5003) / 12 - 2504 / (2*250 + 500)) = 408734368 mm4

Radial distance from centroid to weld: rp = sqr( (Xbarp)2 + (Lp - Ybarp)2 )

= sqr( (0.5*500)2 + (250 - 62.5)2 ) = 312.5 mm θr = arctan( (Lp - Ybarp) / (Xbarp) )

= arctan( 187.5 / 250 ) = 36.87° τ 2 = M * rp / Jp

= [F(α)*cos(α)*(L + Lp - Ybarp)] * rp / Jp = (8,379.6*cos(12.0)*587.5)*312.5 / 408734375.0000 = 368.2 kg/cm2

τ ratio = sqr( (τt + τ2*sin(θr))2 + (τs + τ2*cos(θr))2 ) / τallowable ≤ 1

= sqr ( (96.6 + 368.2*sin(36.87))2 + (20.5 + 368.2*cos(36.87) )2 ) / 936.5 = 0.48 Acceptable

WRC 107 Analysis Geometry

Applied Loads Maximum stress ratio occurs at lift angle = 90.00° with lift force = 13,449.9 kgf Radial load: Pr = 0 kgf Circumferential moment: Mc = 0 kgf-m Circumferential shear: Vc = 0 kgf Longitudinal moment: ML = 309.35 kgf-m Longitudinal shear: VL = 13,449.88 kgf Torsion moment: Mt = 0 kgf-m Internal pressure: P = 0 bar Mean shell radius: Rm = 1,002.5 mm Shell yield stress: Sy = 2,253.57 kgf/cm2

Maximum stresses due to the applied loads at the lug edge (includes pressure) Rm / t = 1,002.5 / 27 = 37.1296 C1 = 162, C2 = 112 mm Local circumferential pressure stress = P*Ri / t =0 kgf/cm2 Local longitudinal pressure stress = P*Ri / (2*t) =0 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 222.45 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = -33.18 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

Height(radial): 22 mm Pad Thickness: 12 mmWidth (circumferential): 300 mm Pad Width: 500 mmLength 200 mm Pad Length: 250 mmFillet Weld Size: 12 mm Pad Weld Size: 12 mmLocated on: Shell (200 mm from top end)Location Angle: 90.00° and 270.00°

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Stresses at the lug edge per WRC Bulletin 107


3C* 4.9577 0.1326 0 0 0 0 0 0 0 0

4C* 5.8876 0.148 0 0 0 0 0 0 0 0

1C 0.0947 0.1496 0 0 0 0 0 0 0 0

2C-1 0.0597 0.1496 0 0 0 0 0 0 0 0

3A* 1.3763 0.1429 0 0 0 0 0 0 0 0

1A 0.0851 0.1644 0 0 0 0 0 0 0 0

3B* 4.0505 0.1264 -33.185 -33.185 33.185 33.185 0 0 0 0

1B-1 0.0406 0.1323 -77.97 77.97 77.97 -77.97 0 0 0 0

Pressure stress* 0 0 0 0 0 0 0 0

Total circumferential stress -111.155 44.786 111.155 -44.786 0 0 0 0

Primary membrane circumferential stress* -33.185 -33.185 33.185 33.185 0 0 0 0

3C* 4.5728 0.148 0 0 0 0 0 0 0 0

4C* 6.0855 0.1326 0 0 0 0 0 0 0 0

1C-1 0.1059 0.1384 0 0 0 0 0 0 0 0

2C 0.0679 0.1384 0 0 0 0 0 0 0 0

4A* 2.2579 0.1429 0 0 0 0 0 0 0 0

2A 0.0468 0.1525 0 0 0 0 0 0 0 0

4B* 1.255 0.1264 -9.421 -9.421 9.421 9.421 0 0 0 0

2B-1 0.0624 0.1325 -119.592 119.592 119.592 -119.592 0 0 0 0


Total longitudinal stress -129.013 110.171 129.013 -110.171 0 0 0 0

Primary membrane longitudinal stress* -9.421 -9.421 9.421 9.421 0 0 0 0

Shear from Mt 0 0 0 0 0 0 0 0

Circ shear from Vc 0 0 0 0 0 0 0 0


Total Shear stress 0 0 0 0 -111.226 -111.226 111.226 111.226

Combined stress (PL+Pb+Q) -129.013 110.171 129.013 -110.171 222.451 222.451 222.451 222.451

Note: * denotes primary stress. Maximum stresses due to the applied loads at the pad edge (includes pressure) Rm / t = 1,002.5 / 15 = 66.8333 C1 = 262, C2 = 137 mm Local circumferential pressure stress = P*Ri / t =0 kgf/cm2 Local longitudinal pressure stress = P*Ri / (2*t) =0 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 327.21 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = -74.17 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

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3C* 5.1421 0.1838 0 0 0 0 0 0 0 0

4C* 7.681 0.2281 0 0 0 0 0 0 0 0

1C 0.066 0.2327 0 0 0 0 0 0 0 0

2C-1 0.0193 0.2327 0 0 0 0 0 0 0 0

3A* 2.467 0.2106 0 0 0 0 0 0 0 0

1A 0.0615 0.2393 0 0 0 0 0 0 0 0

3B* 6.5128 0.1696 -74.174 -74.174 74.174 74.174 0 0 0 0

1B-1 0.0223 0.1804 -101.734 101.734 101.734 -101.734 0 0 0 0


Total circumferential stress -175.908 27.56 175.908 -27.56 0 0 0 0

Primary membrane circumferential stress* -74.174 -74.174 74.174 74.174 0 0 0 0

3C* 3.8341 0.2281 0 0 0 0 0 0 0 0

4C* 8.7253 0.1838 0 0 0 0 0 0 0 0

1C-1 0.0518 0.2005 0 0 0 0 0 0 0 0

2C 0.034 0.2005 0 0 0 0 0 0 0 0

4A* 5.9002 0.2106 0 0 0 0 0 0 0 0

2A 0.0305 0.2046 0 0 0 0 0 0 0 0

4B* 2.6399 0.1696 -23.131 -23.131 23.131 23.131 0 0 0 0

2B-1 0.0334 0.1744 -157.558 157.558 157.558 -157.558 0 0 0 0


Total longitudinal stress -180.689 134.427 180.689 -134.427 0 0 0 0

Primary membrane longitudinal stress* -23.131 -23.131 23.131 23.131 0 0 0 0

Shear from Mt 0 0 0 0 0 0 0 0



Total Shear stress 0 0 0 0 -163.604 -163.604 163.604 163.604

Combined stress (PL+Pb+Q) -180.689 134.427 180.689 -134.427 327.208 327.208 327.208 327.208


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Tailing Lug

Geometry Inputs

Attached To Skirt Base Ring

Material A 283 Gr.C

Orientation Longitudinal

Distance of Lift Point From Datum -7,687.41 mm

Angular Position 180.00°

Length of Lug, L 250 mm

Height of Lug, H 200 mm

Thickness of Lug, t 26 mm

Hole Diameter, d 36.73 mm

Pin Diameter, Dp 26.48 mm

Load Eccentricity, a1 0 mm

Distance from Load to Shell or Pad, a2 150 mm

Weld Size, tw 15 mm

Width of Pad, Bp 100 mm

Length of Pad, Lp 310 mm

Pad Thickness, tp 12 mm

Pad Weld Size, twp 12 mm

Load Angle Normal to Vessel, β 0.0000 °

Load Angle from Vertical, φ -90.0000 °

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Intermediate Values

Load Factor 1.5000

Vessel Weight (new, incl. Load Factor), W 26900 kg

Lug Weight (new), Wlug 14 kg

Distance from Center of Gravity to Top Lug, l1 5,578.69 mm

Distance from Center of Gravity to Tail Lug, l2 8,970.73 mm

Distance from Vessel Center Line to Tail Lug, l3 1,172 mm

Allowable Stress, Tensile, σt 1404.734 kg/cm²

Allowable Stress, Shear, σs 936.489 kg/cm²

Allowable Stress, Bearing, σp 2107.101 kg/cm²

Allowable Stress, Bending, σb 1560.893 kg/cm²

Allowable Stress, Weld Shear, τallowable 936.489 kg/cm²

Allowable Stress set to 1/3 Sy per ASME B30.20 No

Summary Values

Required Lift Pin Diameter, dreqd 26.48 mm

Required Lug Thickness, treqd 18.49 mm

Lug Stress Ratio, σratio 0.12

Weld Shear Stress Ratio, τratio 0.15

Lug Design Acceptable

Local Stresses Unacceptable

Base ring loading Acceptable

Lift Forces Lift force on lugs during rotational lift (0° ≤ α ≤ 90°): 2*Ftop = W*(l2*cos(α) + l3*sin(α)) / (l1*cos(α) + l2*cos(α) + l3*sin(α) )Ftail = W - (2*F)

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α [°] Ftop[kgf] Ftail[kgf]

0 8,292.9 10,314.3

15 8,401.8 10,096.4

30 8,522.1 9,855.9

45 8,677.3 9,545.4

60 8,924.3 9,051.5

75 9,484.9 7,930.2

90 13,450 0

151 8,401.8 10,096.4

482 8,716.4 9,467.3

503 8,744.6 9,410.9 1Lift angle at maximum lug stress. 2Lift angle at maximum weld stress. 3Lift angle at maximum pad weld stress. Lug Pin Diameter - Shear stress dreqd = (2*Fr / (π*σs))0.5

= (2*10,314.3 / (π*936.5))0.5 = 26.48 mm

dreqd / Dp = 26.48 / 26.48 = 1.00 Acceptable σ = Fr / A

= Fr / (2*(0.25*π*Dp2))

= 10,314.3 / (2*(0.25*π*26.482)) = 936.5 kg/cm2

σ / σs = 936.5 / 936.5 = 1 Acceptable Lug Thickness - Tensile stress treqd = Fr / ((L - d)*σt)

= 10,314.3 / ((250 - 36.73)*1,404.7) = 3.44 mm treqd / t = 3.44 / 26 = 0.13 Acceptable σ = Fr / A

= Fr / ((L - d)*t) = 10,314.3 / ((250 - 36.73)*26) = 186 kg/cm2

σ / σt = 186 / 1,404.7 = 0.13 Acceptable Lug Thickness - Bearing stress treqd = Fv / (Dp*σp)

= 10,314.3 / (26.48*2,107.1) = 18.49 mm

treqd / t = 18.49 / 26 = 0.71 Acceptable σ = Fv / Abearing

= Fv / (Dp*(t)) = 10,314.3 / (26.48*(26)) = 1,498.2 kg/cm2

σ / σp = 1,498.2 / 2,107.1 = 0.71 Acceptable

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Lug Thickness - Shear stress treqd = [Fv / σs] / (2*Lshear)

= (10,314.3 / 936.5) / (2*34.68) = 15.88 mm

treqd / t = 15.88 / 26 = 0.61 Acceptable τ = Fv / Ashear

= Fv / (2*t*Lshear ) = 10,314.3 / (2*26*34.68) = 572 kg/cm2

τ / σs = 572 / 936.5 = 0.61 Acceptable Shear stress length (per Pressure Vessel and Stacks, A. Keith Escoe)

φ

= 55*Dp / d

= 55*26.48 / 36.73 = 39.6461° Lshear = (H - a2 - 0.5*d) + 0.5*Dp*(1 - cos(φ))

= (200 - 150 - 0.5*36.73) + 0.5*26.48*(1 - cos(39.6461)) = 34.68 mm Lug Plate Stress Lug stress tensile + bending during lift:σ ratio = [Ften / (Aten*σt)] + [Mbend / (Zbend*σb)] ≤ 1

= [(Ftail(α)*cos(α) ) / (t*L*σt)] + [(6*abs(Ftail(α)*sin(α)*Hght - Ftail(α)*cos(α)*a1) ) / (t*L2*σb)] ≤ 1 = 10,096.4*cos(15.0) / (26*250*1,404.7) + 6*abs(10,096.4*sin(15.0)*16.65 - 10,096.4*cos(15.0)*0) / (26*2502*1,560.9)= 0.12 Acceptable

Weld Stress

] Weld stress, tensile, bending and shear during lift: Direct shear: Maximum shear stress occurs at lift angle 48.00°; lift force = 9,467.3 kgf Aweld = 2*(0.707)*tw*(d1 + b1 + d2 + b2 + d3 + b3 + t)

= 2*(0.707)*15*(134.59 + 244.48 + 133.35 + 41.28 + 133.35 + -35.75 + 26) = 14,365.27 mm2

τt = Ftail*cos(α) / Aweld = 9,467.3*cos(48.0) / 14,365.27 = 44.1 kg/cm2 τs = Ftail*sin(α) / Aweld = 9,467.3*sin(48.0) / 14,365.27 = 49 kg/cm2

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Torsional shear: Weld areas Ai = 0.707*tw*Li A1 = 0.707*15*134.59 = 1,427.3 mm2 A2 = 0.707*15*244.48 = 2,592.66 mm2 A3 = 0.707*15*133.35 = 1,414.18 mm2 A4 = 0.707*15*41.28 = 437.72 mm2 A5 = 0.707*15*133.35 = 1,414.18 mm2 Aweld torsion = Σ Ai = 6,906.9 mm2 Weld centroid locations x1 = 0 mm y1 = 67.29 mm x2 = 122.24 mm y2 = 0 mm x3 = 244.48 mm y3 = 66.67 mm x4 = 265.11 mm y4 = 133.35 mm x5 = 285.75 mm y5 = 66.67 mm Xbar = Σ (Ai*xi) / ΣAi Ybar = Σ (Ai*yi) / ΣAi Xbar = (1,427.3*0 + 2,592.66*122.24 + 1,414.18*244.48 + 437.72*265.11 + 1,414.18*285.75 ) / 6,906.9 = 156.54 mm Ybar = (1,427.3*67.29 + 2,592.66*0 + 1,414.18*66.67 + 437.72*133.35 + 1,414.18*66.67 ) / 6,906.9 = 49.66 mm Radius to centroid locations ri = sqr((Xbar - xi)2 + (Ybar - yi)2 ) r1 = sqr( (156.54 - 0)2 + (49.66 - 67.29)2 ) = 157.53 mm r2 = sqr( (156.54 - 122.24)2 + (49.66 - 0)2 ) = 60.36 mm r3 = sqr( (156.54 - 244.48)2 + (49.66 - 66.67)2 ) = 89.56 mm r4 = sqr( (156.54 - 265.11)2 + (49.66 - 133.35)2 ) = 137.08 mm r5 = sqr( (156.54 - 285.75)2 + (49.66 - 66.67)2 ) = 130.32 mm Radial distance from centroid to weld: r = sqr( ΔX2 + ΔY2 )

= sqr( 156.542 + 84.932 ) = 178.1 mm θr = arctan( ΔY / ΔX )

= arctan( 84.93 / 156.54 ) = 28.48° Polar Moment of Area Ji = 0.707*tw*(Li

3) / 12 J1 = 0.707*15*(134.593) / 12 = 2154485.75 mm4 J2 = 0.707*15*(244.483) / 12 = 12913168 mm4 J3 = 0.707*15*(133.353) / 12 = 2095599.5 mm4 J4 = 0.707*15*(41.283) / 12 = 62142.7773 mm4 J5 = 0.707*15*(133.353) / 12 = 2095599.5 mm4 J = 2*Σ (Ji + Ai*ri

2) Parallel axis theorem (weld on both sides of lug)

J = 2*[2154485.6459 + 1,427.3*(157.53)2 + (12913167.7022 + 2,592.66*(60.36)2) + (2095599.4614 + 1,414.18*(89.56)2) + (62142.7793 + 437.72*(137.08)2) + (2095599.4614 + 1,414.18*(130.32)2) ] = 215467808 mm4

Secondary shear τ 2 = M * r / J = [F(α)*cos(α)*(X - Xbar) - F(α)*sin(α)*(Y - Ybar)] * r / J

= (9,467.3*cos(48.0)*(125 - 156.54) - 9,467.3*sin(48.0)*(150 - 49.66) )*178.1 / 215467814.9101 = -74.9 kg/cm2

τ ratio = sqr( (τt - τ2*cos(θr))2 + (τs - τ2*sin(θr))2 ) / τallowable ≤ 1

= sqr ( (44.1 - 74.9*cos(28.48))2 + (49 - 74.9*sin(28.48) )2 ) / 936.5 = 0.15 Acceptable

V-8601 330

Pad Weld Stress, tensile, bending and shear during lift: Direct shear: Maximum shear stress occurs at lift angle 50.00°; lift force = 9,410.9 kgf Aweld = 2*(0.707)*twp*(Lp + Bp)

= 2*(0.707)*12*(310 + 100) = 6,956.88 mm2 τt = Ftail*cos(α) / Aweld = 9,410.9*cos(50.0) / 6,956.88 = 87 kg/cm2 τs = Ftail*sin(α) / Aweld = 9,410.9*sin(50.0) / 6,956.88 = 103.6 kg/cm2 τb = M * c / I

= 3*(Ftail*sin(α)*Hght - Ftail*cos(α)*Δa) / (0.707*hp*Lp*(3*Wp + Lp)) = 3*abs(9,410.9*sin(50.0)*162 - 9,410.9*cos(50.0)*(-30)) / (1604324.4000)= 252.3 kg/cm2

τ ratio = sqr( (τt + τb)2 + τs

2 ) / τallowable ≤ 1= sqr ( (87 + 252.3)2 + (103.6)2 ) / 936.5 = 0.38 Acceptable

WRC 107 Analysis Geometry

Applied Loads Maximum stress ratio occurs at lift angle = 0.00° with lift force = 10,314.3 kgf Radial load: Pr = -10,314.3 kgf Circumferential moment: Mc = 0 kgf-m Circumferential shear: Vc = 0 kgf Longitudinal moment: ML = 0 kgf-m Longitudinal shear: VL = 0 kgf Torsion moment: Mt = 0 kgf-m Internal pressure: P = 0 bar Mean shell radius: Rm = 1,005 mm Shell yield stress: Sy = 2,253.57 kgf/cm2

Maximum stresses due to the applied loads at the lug edge (includes pressure) Rm / t = 1,005 / 22 = 45.6818 C1 = 28, C2 = 112 mm Note: Actual lug C1 / C2 < 1 / 4, C1 / C2 = 1 / 4 used as this is the minimum ratio covered by WRC 107. Local circumferential pressure stress = P*Ri / t =0 kgf/cm2 Local longitudinal pressure stress = P*Ri / (2*t) =0 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 2,743.52 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 The maximum combined stress (PL+Pb+Q) is within allowable limits. Maximum local primary membrane stress (PL) = 391.89 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.

Height(radial): 200 mm Pad Thickness: 12 mmWidth (circumferential): 26 mm Pad Width: 100 mmLength 250 mm Pad Length: 310 mmFillet Weld Size: 15 mm Pad Weld Size: 12 mmLocated on: Skirt Base Ring (27 mm from bottom end)Location Angle: 180.00°

V-8601 331

Stresses at the lug edge per WRC Bulletin 107


3C* 7.4176 0.0825 0 0 0 0 346.051 346.051 346.051 346.051

4C* 8.4013 0.0669 391.891 391.891 391.891 391.891 0 0 0 0

1C 0.1875 0.049 0 0 0 0 2,397.465 -2,397.465 2,397.465 -

2,397.465

2C-1 0.1475 0.049 1,885.983 -1,885.983 1,885.983 -

1,885.983 0 0 0 0

3A* 0.5731 0.0442 0 0 0 0 0 0 0 0

1A 0.1045 0.0552 0 0 0 0 0 0 0 0

3B* 3.9895 0.0702 0 0 0 0 0 0 0 0

1B-1 0.0553 0.0607 0 0 0 0 0 0 0 0


Total circumferential stress 2,277.873 -1,494.092 2,277.873 -

1,494.092 2,743.516 -2,051.415 2,743.516 -

2,051.415

Primary membrane circumferential stress* 391.891 391.891 391.891 391.891 346.051 346.051 346.051 346.051

3C* 7.8762 0.0669 367.424 367.424 367.424 367.424 0 0 0 0

4C* 8.1594 0.0825 0 0 0 0 380.642 380.642 380.642 380.642

1C-1 0.1544 0.0697 1,974.218 -1,974.218 1,974.218 -

1,974.218 0 0 0 0

2C 0.1128 0.0697 0 0 0 0 1,442.276 -1,442.276 1,442.276 -

1,442.276

4A* 0.7782 0.0442 0 0 0 0 0 0 0 0

2A 0.058 0.0728 0 0 0 0 0 0 0 0

4B* 1.0479 0.0702 0 0 0 0 0 0 0 0

2B-1 0.0782 0.084 0 0 0 0 0 0 0 0


Total longitudinal stress 2,341.642 -1,606.794 2,341.642 -

1,606.794 1,822.917 -1,061.634 1,822.917 -

1,061.634


Shear from Mt 0 0 0 0 0 0 0 0


Long shear from VL 0 0 0 0 0 0 0 0

Total Shear stress 0 0 0 0 0 0 0 0

Combined stress (PL+Pb+Q) 2,341.642 -1,606.794 2,341.642 -

1,606.794 2,743.516 -2,051.415 2,743.516 -

2,051.415


V-8601 332

Maximum stresses due to the applied loads at the pad edge (includes pressure) Rm / t = 1,005 / 10 = 100.5 C1 = 62, C2 = 167 mm Local circumferential pressure stress = P*Ri / t =0 kgf/cm2 Local longitudinal pressure stress = P*Ri / (2*t) =0 kgf/cm2 Maximum combined stress (PL+Pb+Q) = 6,747.35 kgf/cm2 Allowable combined stress (PL+Pb+Q) = +-3*S = +-3,609.79 kgf/cm2 WRC-107: The combined stress (PL+Pb+Q) is excessive (at pad edge) Maximum local primary membrane stress (PL) = 1,496.2 kgf/cm2 Allowable local primary membrane (PL) = +-1.5*S = +-1,804.9 kgf/cm2 The maximum local primary membrane stress (PL) is within allowable limits.



3C* 8.3992 0.142 0 0 0 0 862.033 862.033 862.033 862.033

4C* 14.5783 0.1182 1,496.201 1,496.201 1,496.201 1,496.201 0 0 0 0

1C 0.0951 0.0911 0 0 0 0 5,885.32 -5,885.32 5,885.32 -5,885.32

2C-1 0.0609 0.0911 3,768.872 -3,768.872 3,768.872 -

3,768.872 0 0 0 0

3A* 3.5908 0.0858 0 0 0 0 0 0 0 0

1A 0.0846 0.0946 0 0 0 0 0 0 0 0

3B* 10.674 0.1194 0 0 0 0 0 0 0 0

1B-1 0.0322 0.1029 0 0 0 0 0 0 0 0


Total circumferential stress 5,265.073 -2,272.671 5,265.073 -

2,272.671 6,747.353 -5,023.287 6,747.353 -

5,023.287

Primary membrane circumferential stress* 1,496.201 1,496.201 1,496.201 1,496.201 862.033 862.033 862.033 862.033

3C* 10.4492 0.1182 1,072.391 1,072.391 1,072.391 1,072.391 0 0 0 0

4C* 13.4311 0.142 0 0 0 0 1,378.437 1,378.437 1,378.437 1,378.437

1C-1 0.0722 0.1225 4,468.144 -4,468.144 4,468.144 -

4,468.144 0 0 0 0

2C 0.0453 0.1225 0 0 0 0 2,803.417 -2,803.417 2,803.417 -

2,803.417

4A* 5.6933 0.0858 0 0 0 0 0 0 0 0

2A 0.0393 0.1165 0 0 0 0 0 0 0 0

4B* 3.9554 0.1194 0 0 0 0 0 0 0 0

2B-1 0.034 0.1298 0 0 0 0 0 0 0 0


Total longitudinal stress 5,540.535 -3,395.753 5,540.535 -

3,395.753 4,181.854 -1,424.98 4,181.854 -1,424.98

Primary membrane longitudinal stress* 1,072.391 1,072.391 1,072.391 1,072.391 1,378.437 1,378.437 1,378.437 1,378.437

Shear from Mt 0 0 0 0 0 0 0 0


Long shear from VL 0 0 0 0 0 0 0 0

Total Shear stress 0 0 0 0 0 0 0 0

Combined stress (PL+Pb+Q) 5,540.535 -3,395.753 5,540.535 -

3,395.753 6,747.353 -5,023.287 6,747.353 -

5,023.287


V-8601 333

Base Ring Sectional Properties

t1 10 mm L1 275.86 mm

t2 27 mm L2a 134.59 mm

L2b 68.61 mm

t3 41.28 mm L3 133.35 mm

Base Ring Geometry

Effective skirt length:

Rm = (Di + t1)*0.5 = (2,000 + 10)*0.5 = 1,005 mm

L1 = t3 + (3)*Min(0.78*sqr(Rm*t1), 16*t1) = 41.28 + (3)*0.78*sqr(1,005*10) = 275.86 mm

Section Area: A1 = t1*L1 = 10*275.86 = 2,758.59 mm2

A2 = t2*L2 = 27*(134.59 + 68.61) = 5,486.4 mm2

A3 = t3*L3 = 41.28*133.35 = 5,504.02 mm2

Atotal = A1 + A2 + A3 = 2,758.59 + 5,486.4 + 5,504.02 = 13,749.01 mm2

Centroid, C: h1 = L2a + 0.5*t1 = 134.59 + 0.5*10 = 139.59 mmh2 = 0.5*(L2a + L2b) = 0.5*(134.59 + 68.61) = 101.6 mmh3 = 0.5*L3 - (L3 - L2a) = 0.5*133.35 - (133.35 - 134.59) = 67.91 mmC = ( (A1*h1) + (A2*h2) + (A3*h3) ) / Atotal

= ((2,758.59*139.59) + (5,486.4*101.6) + (5,504.02*67.91) ) / 13,749.01 = 95.74 mmMoment of Inertia, I:

I1 = (L1*t13) / 12 + A1*(h1 - C)2

= (275.86*103) / 12 + 2,758.59*(139.59 - 95.74)2 = 5327643.3mm4

I2 = t2*(L2a + L2b)3 / 12 + A2*(h2 - C)2 = 27*(134.59 + 68.61)3 / 12 + 5,486.4*(101.6 - 95.74)2 = 19066557.9 mm4

I3 = (t3*L33) / 12 + A3*(h3 - C)2

= (41.28*133.353) / 12 + 5,504.02*(67.91 - 95.74)2 = 12417056.4 mm4

Iring = I1 + I2 + I3 = 5327643.3470 + 19066557.9413 + 12417056.3918 = 36811257.7mm4

Section Modulus, Z: Z = Iring / Cmax = 36811257.6801 / 107.46 = 342544.911 mm3

Base Ring Loads without stiffener beam Base Ring Load Wr = W = Ftail = 10,314.3 kgf

V-8601 334

Base Ring Loading Reference: Roark's Formulas for Stress & Strain - 6th Edition. Table 17, Case 20 For thin ring sections k1 = k2 = 1 Change in vertical diameter, DV = (-W)*R3*(π*k1 / 8 - k2

2 / π) / (E * I) Internal Moment, MA = W*R*(k2 - 0.5) / (2*π) Internal Force, NA = 0.75*W / π Internal Shear Force, VA = 0 Ring loading, Wr = 10,314.3 kgf DVr = -10,314.3*1,048.853*(π*1 / 8 - 12 / π) / (2,038,903*36811257.6801) = -1.18 mmMAr = 10,314.3*1,048.85*(1 - 0.5) / (2*π) = 860.8825 kg-mNAr = 0.75*10,314.3 / π = 2,462.4 kgfLoad Equations LTM = W*R*(1 - cos(x) - 0.5*x*sin(x)) / π LTN = -W*(x*sin(x)) / (2*π) LTV = W*(sin(x) - x*cos(x)) / (2*π) M = MA - NA*R*(1 - cos(x)) + VA*R*sin(x) + LTM N = NA*cos(x) + VA*sin(x) + LTN V = -NA*sin(x) + VA*cos(x) + LTV Load Table for Load Wr

x [°] LTM [kgf-m] LTN [kgf] LTV [kgf] M [kgf-m] N [kgf] V [kgf]

180 0.00 -0.00 0.00 860.88 2462.36 0.00

150 10.59 -429.76 76.42 525.46 1702.70 -1154.76

120 160.30 -1488.74 562.12 -270.14 -257.56 -1570.34

90 738.99 -2578.57 1641.57 -982.78 -2578.57 -820.79

60 2042.36 -2977.48 3140.69 -970.73 -4208.66 1008.23

30 4171.93 -2148.81 4542.63 213.53 -4281.27 3311.46

0 6887.06 -0.00 5157.15 2582.65 -2462.36 5157.15

(0 ° at lug) Maximum Stress in Base Ring Section Allowable Base Ring Stresses Fa = 0.6*Fy = 1,518.6 kg/cm2 Fb = 0.66*Fy = 1,670.5 kg/cm2 Fs = 0.4*Fy = 1,012.4 kg/cm2 Base Ring Stresses Maximum combined stress occurs at 0.00 degrees fa = N / A = -2,462.4 / 13,749.01 = -17.9 kg/cm2

fb = M / Z = 2,582.6 / 342544.9107 = 754 kg/cm2

fa / Fa + fb / Fb = 0.46 Acceptable Maximum shear stress occurs at 0.00 degrees fs = V / A = 5,157.1 / 13,749.01 = 37.5 kg/cm2

fs / Fs = 0.04 Acceptable

V-8601 335

Skirt Support Calculation Design Conditions


V-8601 336

Support Skirt 1 Material: SA-516 60 (II-D Metric p. 10, ln. 27) Design temperature, operating: 25 °C Design temperature, vacuum: 25 °C Inner diameter at top, new: 2,000 mm Inner diameter at bottom, new: 2,000 mm Overall length (includes base ring thickness): 670 mm Corrosion allowance inside: 1.5 mm Corrosion allowance outside: 1.5 mm Weld joint efficiency top: 0.55 Weld joint efficiency bottom: 0.55 Nominal thickness, new: 10 mm Skirt is attached to: Bottom Head Skirt attachment offset: 101.41 mm down from the top seam Skirt design thickness, largest of the following + corrosion = 4.36 mm The governing condition is due to vortex shedding, compressive stress at the base, empty & corroded. The skirt thickness of 10 mm is adequate.

Loading Vessel

Condition (Stress)

Governing Skirt

Location

Temperature(°C)

AllowableStress

(kgf/cm2)

CalculatedStress/E(kgf/cm2)

Required thickness

(mm)

Wind operating, corroded (+) top 25 821.06 -34.57 0.29

Wind operating, corroded (-) bottom 25 821.06 102.36 0.87

Wind operating, new (+) top 25 918.01 -26.04 0.28

Wind operating, new (-) bottom 25 918.01 75.29 0.82

Wind empty, corroded (+) top 25 821.06 -4.18 0.04

Wind empty, corroded (-) bottom 25 821.06 51.71 0.44

Wind empty, new (+) top 25 918.01 -5.05 0.06

Wind empty, new (-) bottom 25 918.01 40.32 0.44

Wind test, corroded (+) top 25 821.06 -27.26 0.23

Wind test, corroded (-) bottom 25 821.06 90.18 0.77

Wind test, new (+) top 25 918.01 -20.92 0.23

Wind test, new (-) bottom 25 918.01 66.76 0.73

Wind vacuum, corroded (+) top 25 821.06 -34.57 0.29

Wind vacuum, corroded (-) bottom 25 821.06 102.36 0.87

Vortex shedding operating, corroded (+) top 25 821.06 -7.37 0.06

Vortex shedding operating, corroded (-) bottom 25 821.06 133.49 1.14

Vortex shedding empty, corroded (+) bottom 25 1,203.26 191.57 1.11

Vortex shedding empty, corroded (-) bottom 25 821.06 159.35 1.36

Vortex shedding vacuum, corroded (+) top 25 821.06 -7.37 0.06

Vortex shedding vacuum, corroded (-) bottom 25 821.06 133.49 1.14

V-8601 337

Loading due to wind, operating & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)

= 0.28 mm Required thickness, tensile stress at the top: t = -0.6*Wt / (p*Dt*St*E) + 4*Mt / (p*Dt

2*St*E)

= -0.6*37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)

= 0.29 mm Leeward side (compressive) Required thickness, compressive stress at base: t = W / (p*D*Sc*Ec) + 4*M / (p*D2*Sc*Ec)

= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)

= 0.87 mm Required thickness, compressive stress at the top: t = Wt / (p*Dt*Sc*Ec) + 4*Mt / (p*Dt

2*Sc*Ec)

= 37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)

= 0.85 mm Loading due to wind, operating & new Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*39,501.19 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*39,169.8 / (p*2,010*918.009/100*1) + 4*1e3*3,547.9 / (p*2,0102*918.009/100*1)


= 39,501.19 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 39,169.8 / (p*2,010*918.009/100*1) + 4*1e3*3,547.9 / (p*2,0102*918.009/100*1)

= 0.8 mm Loading due to wind, empty & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*14,913.97 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)

= 0.0194 mm

V-8601 338

Required thickness, tensile stress at the top: t = -0.6*Wt / (p*Dt*St*E) + 4*Mt / (p*Dt

2*St*E)

= -0.6*14,681.99 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)


= 14,913.97 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 14,681.99 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)

= 0.42 mm Loading due to wind, empty & new Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*17,414.08 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*17,082.69 / (p*2,010*918.009/100*1) + 4*1e3*3,547.9 / (p*2,0102*918.009/100*1)


= 17,414.08 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 17,082.69 / (p*2,010*918.009/100*1) + 4*1e3*3,547.9 / (p*2,0102*918.009/100*1)

= 0.42 mm Loading due to wind, test & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*31,918.21 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*31,686.24 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)


= 31,918.21 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)

= 0.77 mm

V-8601 339

Required thickness, compressive stress at the top: t = Wt / (p*Dt*Sc*Ec) + 4*Mt / (p*Dt

2*Sc*Ec)

= 31,686.24 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)

= 0.75 mm Loading due to wind, test & new Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*34,113.63 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*33,782.24 / (p*2,010*918.009/100*1) + 4*1e3*3,547.9 / (p*2,0102*918.009/100*1)


= 34,113.63 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 33,782.24 / (p*2,010*918.009/100*1) + 4*1e3*3,547.9 / (p*2,0102*918.009/100*1)

= 0.7 mm Loading due to wind, vacuum & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)


= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*3,498.1 / (p*2,0102*821.06/100*1)

= 0.85 mm

V-8601 340

Loading due to vortex shedding, operating & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*9,538 / (p*2,0102*821.06/100*1)


= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*9,538 / (p*2,0102*821.06/100*1)

= 1.08 mm Loading due to vortex shedding, empty & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*14,913.97 / (p*2,010*1,203.264/100*0.55) + 4*1e3*27,899 / (p*2,0102*1,203.264/100*0.55)


2*St*E)

= -0.6*14,681.99 / (p*2,010*1,203.264/100*0.55) + 4*1e3*24,371.1 / (p*2,0102*1,203.264/100*0.55)


= 14,913.97 / (p*2,010*821.06/100*1) + 4*1e3*27,899 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 14,681.99 / (p*2,010*821.06/100*1) + 4*1e3*24,371.1 / (p*2,0102*821.06/100*1)

= 1.22 mm Loading due to vortex shedding, vacuum & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)

= 0.013 mm

V-8601 341


2*St*E)

= -0.6*37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*9,538 / (p*2,0102*821.06/100*1)


= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,067.87 / (p*2,010*821.06/100*1) + 4*1e3*9,538 / (p*2,0102*821.06/100*1)

= 1.08 mm

V-8601 342

Support Skirt 2 Material: SA-283 C (II-D Metric p. 6, ln. 41) Design temperature, operating: 25 °C Design temperature, vacuum: 25 °C Inner diameter at top, new: 2,000 mm Inner diameter at bottom, new: 2,000 mm Overall length (includes base ring thickness): 1,500 mm Corrosion allowance inside: 1.5 mm Corrosion allowance outside: 1.5 mm Weld joint efficiency top: 0.55 Weld joint efficiency bottom: 0.55 Nominal thickness, new: 10 mm Skirt is attached to: Support Skirt 1 Skirt attachment offset: 0 mm up from the bottom seam Skirt design thickness, largest of the following + corrosion = 4.68 mm The governing condition is due to vortex shedding, compressive stress at the base, empty & corroded. The skirt thickness of 10 mm is adequate.

Loading Vessel

Condition (Stress)

Governing Skirt

Location

Temperature(°C)

AllowableStress

(kgf/cm2)


Required thickness

(mm)





Wind empty, corroded (+) bottom 25 1,101.29 4.9 0.03


Wind empty, new (+) top 25 918.01 -3.81 0.04




Wind test, new (+) top 25 918.01 -19.68 0.21




Vortex shedding operating, corroded (+) bottom 25 1,101.29 22.32 0.14




Vortex shedding vacuum, corroded (+) bottom 25 1,101.29 22.32 0.14


V-8601 343


= -0.6*37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


= -0.6*40,243.13 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*39,501.19 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


= 40,243.13 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)

= \ HYPERLINK Required thickness, compressive stress at the top: t = Wt / (p*Dt*Sc*Ec) + 4*Mt / (p*Dt

2*Sc*Ec)

= 39,501.19 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


= -0.6*15,433.32 / (p*2,010*1,101.293/100*0.55) + 4*1e3*5,251.9 / (p*2,0102*1,101.293/100*0.55)

= 0.0312 mm

V-8601 344


2*St*E)

= -0.6*14,913.97 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


= 15,433.32 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 14,913.97 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


= -0.6*18,156.02 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*17,414.08 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


= 18,156.02 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 17,414.08 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


= -0.6*32,437.57 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*31,918.21 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)

= 0.22 mm

V-8601 345

Leeward side (compressive) Required thickness, compressive stress at base: t = W / (p*D*Sc*Ec) + 4*M / (p*D2*Sc*Ec)

= 32,437.57 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 31,918.21 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


= -0.6*34,855.57 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*34,113.63 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


= 34,855.57 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 34,113.63 / (p*2,010*918.009/100*1) + 4*1e3*4,041.9 / (p*2,0102*918.009/100*1)


= -0.6*37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)


= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*3,992.1 / (p*2,0102*821.06/100*1)

= 0.87 mm

V-8601 346


= -0.6*37,819.2 / (p*2,010*1,101.293/100*0.55) + 4*1e3*14,129.1 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)


= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*14,129.1 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)


= -0.6*15,433.32 / (p*2,010*1,101.293/100*0.55) + 4*1e3*35,950.9 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*14,913.97 / (p*2,010*1,101.293/100*0.55) + 4*1e3*27,899 / (p*2,0102*1,101.293/100*0.55)


= 15,433.32 / (p*2,010*821.06/100*1) + 4*1e3*35,950.9 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 14,913.97 / (p*2,010*821.06/100*1) + 4*1e3*27,899 / (p*2,0102*821.06/100*1)


= -0.6*37,819.2 / (p*2,010*1,101.293/100*0.55) + 4*1e3*14,129.1 / (p*2,0102*1,101.293/100*0.55)

= 0.14 mm

V-8601 347


2*St*E)

= -0.6*37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)


= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*14,129.1 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,299.84 / (p*2,010*821.06/100*1) + 4*1e3*10,908 / (p*2,0102*821.06/100*1)

= 1.14 mm

V-8601 348

Support Skirt 3 Material: SA-283 C (II-D Metric p. 6, ln. 41) Design temperature, operating: 25 °C Design temperature, vacuum: 25 °C Inner diameter at top, new: 2,000 mm Inner diameter at bottom, new: 2,000 mm Overall length (includes base ring thickness): 1,500 mm Corrosion allowance inside: 1.5 mm Corrosion allowance outside: 1.5 mm Weld joint efficiency top: 0.55 Weld joint efficiency bottom: 0.55 Nominal thickness, new: 10 mm Skirt is attached to: Support Skirt 2 Skirt attachment offset: 0 mm up from the bottom seam Skirt design thickness, largest of the following + corrosion = 5.05 mm The governing condition is due to vortex shedding, tensile stress at the base, empty & corroded. The skirt thickness of 10 mm is adequate.

Loading Vessel

Condition (Stress)

Governing Skirt

Location

Temperature(°C)

AllowableStress

(kgf/cm2)


Required thickness

(mm)


Wind operating, corroded (-) bottom 25 821.06 117.01 1





Wind empty, new (+) bottom 25 1,101.29 6.17 0.06




Wind test, new (+) top 25 918.01 -16.41 0.18



Wind vacuum, corroded (-) bottom 25 821.06 117.01 1




Vortex shedding empty, corroded (-) bottom 25 821.06 235.16 2



V-8601 349


= -0.6*38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)

= 1 mm Required thickness, compressive stress at the top: t = Wt / (p*Dt*Sc*Ec) + 4*Mt / (p*Dt

2*Sc*Ec)

= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


= -0.6*40,985.06 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*40,243.13 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


= 40,985.06 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 40,243.13 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


= -0.6*15,952.68 / (p*2,010*1,101.293/100*0.55) + 4*1e3*6,724.5 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*15,433.32 / (p*2,010*1,101.293/100*0.55) + 4*1e3*5,251.9 / (p*2,0102*1,101.293/100*0.55)

= 0.0312 mm

V-8601 350


= 15,952.68 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 15,433.32 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


= -0.6*18,897.95 / (p*2,010*1,101.293/100*0.55) + 4*1e3*6,775.2 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*18,156.02 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


= 18,897.95 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 18,156.02 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


= -0.6*32,956.92 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*32,437.57 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


= 32,956.92 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)

= 0.89 mm

V-8601 351


2*Sc*Ec)

= 32,437.57 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


= -0.6*35,597.5 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*34,855.57 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


= 35,597.5 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 34,855.57 / (p*2,010*918.009/100*1) + 4*1e3*5,302 / (p*2,0102*918.009/100*1)


= -0.6*38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)


= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*5,251.9 / (p*2,0102*821.06/100*1)

= 0.93 mm

V-8601 352


= -0.6*38,338.55 / (p*2,010*1,101.293/100*0.55) + 4*1e3*17,563 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*37,819.2 / (p*2,010*1,101.293/100*0.55) + 4*1e3*14,129.1 / (p*2,0102*1,101.293/100*0.55)


= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*17,563 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*14,129.1 / (p*2,0102*821.06/100*1)


= -0.6*15,952.68 / (p*2,010*1,101.293/100*0.55) + 4*1e3*44,215.6 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*15,433.32 / (p*2,010*1,101.293/100*0.55) + 4*1e3*35,950.9 / (p*2,0102*1,101.293/100*0.55)


= 15,952.68 / (p*2,010*821.06/100*1) + 4*1e3*44,215.6 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 15,433.32 / (p*2,010*821.06/100*1) + 4*1e3*35,950.9 / (p*2,0102*821.06/100*1)


= -0.6*38,338.55 / (p*2,010*1,101.293/100*0.55) + 4*1e3*17,563 / (p*2,0102*1,101.293/100*0.55)

= 0.31 mm

V-8601 353


2*St*E)

= -0.6*37,819.2 / (p*2,010*1,101.293/100*0.55) + 4*1e3*14,129.1 / (p*2,0102*1,101.293/100*0.55)


= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*17,563 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 37,819.2 / (p*2,010*821.06/100*1) + 4*1e3*14,129.1 / (p*2,0102*821.06/100*1)

= 1.27 mm

V-8601 354


Loading Vessel

Condition (Stress)

Governing Skirt

Location

Temperature(°C)

AllowableStress

(kgf/cm2)


Required thickness

(mm)











Wind test, new (+) top 25 918.01 -12.47 0.14










V-8601 355


= -0.6*38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)

= 1 mm Loading due to wind, operating & new Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*41,727 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*40,985.06 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


= 41,727 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 40,985.06 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


= -0.6*16,472.03 / (p*2,010*1,101.293/100*0.55) + 4*1e3*8,409.7 / (p*2,0102*1,101.293/100*0.55)

= 0.18 mm

V-8601 356


2*St*E)

= -0.6*15,952.68 / (p*2,010*1,101.293/100*0.55) + 4*1e3*6,724.5 / (p*2,0102*1,101.293/100*0.55)


= 16,472.03 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 15,952.68 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


= -0.6*19,639.89 / (p*2,010*1,101.293/100*0.55) + 4*1e3*8,461.4 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*18,897.95 / (p*2,010*1,101.293/100*0.55) + 4*1e3*6,775.2 / (p*2,0102*1,101.293/100*0.55)


= 19,639.89 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 18,897.95 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


= -0.6*33,476.28 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*32,956.92 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)

= 0.12 mm

V-8601 357


= 33,476.28 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 32,956.92 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


= -0.6*36,339.44 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*35,597.5 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


= 36,339.44 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 35,597.5 / (p*2,010*918.009/100*1) + 4*1e3*6,775.2 / (p*2,0102*918.009/100*1)


= -0.6*38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)


= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)

= 1.07 mm

V-8601 358


2*Sc*Ec)

= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*6,724.5 / (p*2,0102*821.06/100*1)

= 1 mm Loading due to vortex shedding, operating & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*38,857.91 / (p*2,010*1,101.293/100*0.55) + 4*1e3*21,209.5 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*38,338.55 / (p*2,010*1,101.293/100*0.55) + 4*1e3*17,563 / (p*2,0102*1,101.293/100*0.55)


= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*21,209.5 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*17,563 / (p*2,0102*821.06/100*1)


= -0.6*16,472.03 / (p*2,010*1,101.293/100*0.55) + 4*1e3*52,693 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*15,952.68 / (p*2,010*1,101.293/100*0.55) + 4*1e3*44,215.6 / (p*2,0102*1,101.293/100*0.55)


= 16,472.03 / (p*2,010*821.06/100*1) + 4*1e3*52,693 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 15,952.68 / (p*2,010*821.06/100*1) + 4*1e3*44,215.6 / (p*2,0102*821.06/100*1)

= 2 mm

V-8601 359

Loading due to vortex shedding, vacuum & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*38,857.91 / (p*2,010*1,101.293/100*0.55) + 4*1e3*21,209.5 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*38,338.55 / (p*2,010*1,101.293/100*0.55) + 4*1e3*17,563 / (p*2,0102*1,101.293/100*0.55)


= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*21,209.5 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 38,338.55 / (p*2,010*821.06/100*1) + 4*1e3*17,563 / (p*2,0102*821.06/100*1)

= 1.41 mm

V-8601 360


Loading Vessel

Condition (Stress)

Governing Skirt

Location

Temperature(°C)

AllowableStress

(kgf/cm2)


Required thickness

(mm)











Wind test, new (+) top 25 918.01 -7.86 0.09










V-8601 361


= -0.6*39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


= -0.6*42,268.11 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*41,727 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


= 42,268.11 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 41,727 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


= -0.6*16,850.81 / (p*2,010*1,101.293/100*0.55) + 4*1e3*9,773 / (p*2,0102*1,101.293/100*0.55)

= 0.24 mm

V-8601 362


2*St*E)

= -0.6*16,472.03 / (p*2,010*1,101.293/100*0.55) + 4*1e3*8,409.7 / (p*2,0102*1,101.293/100*0.55)


= 16,850.81 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 16,472.03 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


= -0.6*20,181 / (p*2,010*1,101.293/100*0.55) + 4*1e3*9,825.5 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*19,639.89 / (p*2,010*1,101.293/100*0.55) + 4*1e3*8,461.4 / (p*2,0102*1,101.293/100*0.55)


= 20,181 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 19,639.89 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


= -0.6*33,855.06 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*33,476.28 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


= 33,855.06 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)

= 1.03 mm

V-8601 363


2*Sc*Ec)

= 33,476.28 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


= -0.6*36,880.55 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*36,339.44 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


= 36,880.55 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 36,339.44 / (p*2,010*918.009/100*1) + 4*1e3*8,461.4 / (p*2,0102*918.009/100*1)


= -0.6*39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)


= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*8,409.7 / (p*2,0102*821.06/100*1)

= 1.07 mm

V-8601 364


= -0.6*39,236.69 / (p*2,010*1,101.293/100*0.55) + 4*1e3*24,003.2 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*38,857.91 / (p*2,010*1,101.293/100*0.55) + 4*1e3*21,209.5 / (p*2,0102*1,101.293/100*0.55)


= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*24,003.2 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*21,209.5 / (p*2,0102*821.06/100*1)


= -0.6*16,850.81 / (p*2,010*1,101.293/100*0.55) + 4*1e3*59,010 / (p*2,0102*1,101.293/100*0.55)


2*St*E)

= -0.6*16,472.03 / (p*2,010*1,101.293/100*0.55) + 4*1e3*52,693 / (p*2,0102*1,101.293/100*0.55)


= 16,850.81 / (p*2,010*821.06/100*1) + 4*1e3*59,010 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 16,472.03 / (p*2,010*821.06/100*1) + 4*1e3*52,693 / (p*2,0102*821.06/100*1)


= -0.6*39,236.69 / (p*2,010*1,101.293/100*0.55) + 4*1e3*24,003.2 / (p*2,0102*1,101.293/100*0.55)

= 0.63 mm

V-8601 365


2*St*E)

= -0.6*38,857.91 / (p*2,010*1,101.293/100*0.55) + 4*1e3*21,209.5 / (p*2,0102*1,101.293/100*0.55)


= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*24,003.2 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 38,857.91 / (p*2,010*821.06/100*1) + 4*1e3*21,209.5 / (p*2,0102*821.06/100*1)

= 1.56 mm

V-8601 366

Support Skirt 6 Material: SA-516 60 (II-D Metric p. 10, ln. 27) Design temperature, operating: 25 °C Design temperature, vacuum: 25 °C Inner diameter at top, new: 2,000 mm Inner diameter at bottom, new: 2,000 mm Overall length (includes base ring thickness): 1,512 mm Corrosion allowance inside: 1.5 mm Corrosion allowance outside: 1.5 mm Weld joint efficiency top: 0.55 Weld joint efficiency bottom: 0.55 Nominal thickness, new: 10 mm Skirt is attached to: Support Skirt 5 Skirt attachment offset: 0 mm up from the bottom seam Skirt design thickness, largest of the following + corrosion = 5.99 mm The governing condition is due to vortex shedding, tensile stress at the base, empty & corroded. The skirt thickness of 10 mm is adequate.

Loading Vessel

Condition (Stress)

Governing Skirt

Location

Temperature(°C)

AllowableStress

(kgf/cm2)


Required thickness

(mm)









Wind test, corroded (+) bottom 25 1,203.26 12.1 0.07


Wind test, new (+) top 25 918.01 -4.08 0.04










V-8601 367


= -0.6*39,760.2 / (p*2,010*821.06/100*1) + 4*1e3*11,843.4 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


= 39,760.2 / (p*2,010*821.06/100*1) + 4*1e3*11,843.4 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


= -0.6*43,015.98 / (p*2,010*918.009/100*1) + 4*1e3*11,897.4 / (p*2,0102*918.009/100*1)


2*St*E)

= -0.6*42,268.11 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


= 43,015.98 / (p*2,010*918.009/100*1) + 4*1e3*11,897.4 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 42,268.11 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


= -0.6*17,374.32 / (p*2,010*1,203.264/100*0.55) + 4*1e3*11,843.4 / (p*2,0102*1,203.264/100*0.55)

= 0.31 mm

V-8601 368


2*St*E)

= -0.6*16,850.81 / (p*2,010*1,203.264/100*0.55) + 4*1e3*9,773 / (p*2,0102*1,203.264/100*0.55)


= 17,374.32 / (p*2,010*821.06/100*1) + 4*1e3*11,843.4 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 16,850.81 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


= -0.6*20,928.87 / (p*2,010*1,203.264/100*0.55) + 4*1e3*11,897.4 / (p*2,0102*1,203.264/100*0.55)


2*St*E)

= -0.6*20,181 / (p*2,010*1,203.264/100*0.55) + 4*1e3*9,825.5 / (p*2,0102*1,203.264/100*0.55)


= 20,928.87 / (p*2,010*918.009/100*1) + 4*1e3*11,897.4 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 20,181 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


= -0.6*34,378.57 / (p*2,010*1,203.264/100*0.55) + 4*1e3*11,843.4 / (p*2,0102*1,203.264/100*0.55)


2*St*E)

= -0.6*33,855.06 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)

= 0.0167 mm

V-8601 369


= 34,378.57 / (p*2,010*821.06/100*1) + 4*1e3*11,843.4 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 33,855.06 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


= -0.6*37,628.42 / (p*2,010*1,203.264/100*0.55) + 4*1e3*11,897.4 / (p*2,0102*1,203.264/100*0.55)


2*St*E)

= -0.6*36,880.55 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


= 37,628.42 / (p*2,010*918.009/100*1) + 4*1e3*11,897.4 / (p*2,0102*918.009/100*1)


2*Sc*Ec)

= 36,880.55 / (p*2,010*918.009/100*1) + 4*1e3*9,825.5 / (p*2,0102*918.009/100*1)


= -0.6*39,760.2 / (p*2,010*821.06/100*1) + 4*1e3*11,843.4 / (p*2,0102*821.06/100*1)


2*St*E)

= -0.6*39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)


= 39,760.2 / (p*2,010*821.06/100*1) + 4*1e3*11,843.4 / (p*2,0102*821.06/100*1)

= 1.22 mm

V-8601 370


2*Sc*Ec)

= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*9,773 / (p*2,0102*821.06/100*1)

= 1.13 mm Loading due to vortex shedding, operating & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*39,760.2 / (p*2,010*1,203.264/100*0.55) + 4*1e3*28,050.6 / (p*2,0102*1,203.264/100*0.55)


2*St*E)

= -0.6*39,236.69 / (p*2,010*1,203.264/100*0.55) + 4*1e3*24,003.2 / (p*2,0102*1,203.264/100*0.55)


= 39,760.2 / (p*2,010*821.06/100*1) + 4*1e3*28,050.6 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*24,003.2 / (p*2,0102*821.06/100*1)


= -0.6*17,374.32 / (p*2,010*1,203.264/100*0.55) + 4*1e3*67,926.8 / (p*2,0102*1,203.264/100*0.55)


2*St*E)

= -0.6*16,850.81 / (p*2,010*1,203.264/100*0.55) + 4*1e3*59,010 / (p*2,0102*1,203.264/100*0.55)


= 17,374.32 / (p*2,010*821.06/100*1) + 4*1e3*67,926.8 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 16,850.81 / (p*2,010*821.06/100*1) + 4*1e3*59,010 / (p*2,0102*821.06/100*1)

= 2.59 mm

V-8601 371

Loading due to vortex shedding, vacuum & corroded Windward side (tensile) Required thickness, tensile stress at base: t = -0.6*W / (p*D*St*E) + 4*M / (p*D2*St*E)

= -0.6*39,760.2 / (p*2,010*1,203.264/100*0.55) + 4*1e3*28,050.6 / (p*2,0102*1,203.264/100*0.55)


2*St*E)

= -0.6*39,236.69 / (p*2,010*1,203.264/100*0.55) + 4*1e3*24,003.2 / (p*2,0102*1,203.264/100*0.55)


= 39,760.2 / (p*2,010*821.06/100*1) + 4*1e3*28,050.6 / (p*2,0102*821.06/100*1)


2*Sc*Ec)

= 39,236.69 / (p*2,010*821.06/100*1) + 4*1e3*24,003.2 / (p*2,0102*821.06/100*1)

= 1.68 mm

V-8601 372

Skirt Base Ring Base configuration: double base plate Foundation compressive strength: 116.569 kgf/cm2 Concrete ultimate 28-day strength: 210.921 kgf/cm2 Anchor bolt material: A 36 Anchor bolt allowable stress, Sb: 1,406.138 kgf/cm2 Bolt circle, BC: 2,155.83 mm Anchor bolt corrosion allowance (applied to root radius): 3 mm Anchor bolt clearance: 1.5 mm Base plate material: Base plate allowable stress, Sp: 1,406.138 kgf/cm2 Base plate inner diameter, Di: 1,882.78 mm Base plate outer diameter, Do: 2,289.18 mm Base plate thickness, tb: 27 mm Gusset separation, w: 127 mm Gusset height, h: 244.48 mm Gusset thickness, tg: 15.88 mm Compression ring width: 133.35 mm Compression ring thickness, tc: 41.28 mm Initial bolt preload: 0 % (0 kgf/cm2) Number of bolts, N: 8 Bolt size and type: 1.875 inch series 8 threaded Bolt root area (corroded), Ab: 11.0471 cm2 Diameter of anchor bolt holes, db: 49.13 mm

Load Vessel condition

Base M (kgf-m)

W (kg)

Requiredbolt area

(cm2)

tr Base(mm)

Foundationbearing stress

(kgf/cm2)

tr compring

(mm)

tr gusset (mm)

Wind operating, corroded 11,843.4 40,404.5 0 13.2 4.9232 0 0

Wind operating, new 11,897.4 43,660.3 0 13.54 5.179 0 0

Wind empty, corroded 11,843.4 18,018.6 0.9924 12.56 4.4555 7.39 4.63

Wind empty, new 11,897.4 21,573.2 0.8117 12.74 4.589 6.17 4.6

Wind test, corroded 11,843.4 35,022.9 0.0854 12.64 4.5144 3.13 4.54

Wind test, new 11,897.4 38,272.7 0 12.99 4.7697 0 0

Wind vacuum, corroded 11,843.4 40,404.5 0 13.2 4.9232 0 0

Vortex shedding operating, corroded 28,050.6 40,404.5 2.4716 19.24 10.4644 11.9 4.81

Vortex shedding empty, corroded 67,926.8 18,018.6 10.2428 26.1 19.2523 29.25 6.55

Vortex shedding vacuum, corroded 28,050.6 40,404.5 2.4716 19.24 10.4644 11.9 4.81

Anchor bolt load (operating, corroded + Wind) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*40,404.52 / 8 + 4 * 11,843.4 / (8*2.1558) = -283.5 kgf The anchor bolts are satisfactory (no net uplift on anchor bolt)

V-8601 373

Foundation bearing stress (operating, corroded + Wind) Ac = pi*(Do

2 - Di2) / 4 - N*pi*db

2 / 4 = p*(228.91752 - 188.27752) / 4 - 8*p*4.91252 / 4 = 13,164.64 cm2 Ic = p*(Do

4 - Di4) / 64

= p*(228.91754 - 188.27754) / 64 = 7.3116E+07 cm4 fc = N*Ab*Preload / Ac + W / Ac + M / 2*Do / Ic = 8*14.8645*0 / 13,164.64 + 40,404.52 / 13,164.64 + 10*11,843.4 / 2*2,289.18 / 7.3116E+07 = 4.923 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. Base plate required thickness (operating, corroded + Wind) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*4.923*687.842 = 106.7 kgf My = 0.01*-0.4577*4.923*134.592 = -408.2 kgf tr = (6*Mmax / Sp)0.5 = (100*6*408.2 / 1,406.138)0.5 = 13.2 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*0 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 0 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 0 / (2 * 20.3577) = 0 kgf/cm2 The gusset plate thickness is satisfactory.

V-8601 374

Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*0*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 0 mm The skirt thickness is satisfactory. Note: No local skirt reaction is present because the foundation resists the initial bolt preload. Anchor bolt load (operating, new + Wind) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*43,660.31 / 8 + 4 * 11,897.4 / (8*2.1558) = -515.15 kgf The anchor bolts are satisfactory (no net uplift on anchor bolt) Foundation bearing stress (operating, new + Wind) Ac = pi*(Do

2 - Di2) / 4 - N*pi*db

2 / 4 = p*(228.91752 - 188.27752) / 4 - 8*p*4.91252 / 4 = 13,164.64 cm2 Ic = p*(Do

4 - Di4) / 64

= p*(228.91754 - 188.27754) / 64 = 7.3116E+07 cm4 fc = N*Ab*Preload / Ac + W / Ac + M / 2*Do / Ic = 8*14.8645*0 / 13,164.64 + 43,660.31 / 13,164.64 + 10*11,897.4 / 2*2,289.18 / 7.3116E+07 = 5.179 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. Base plate required thickness (operating, new + Wind) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*5.179*687.842 = 112.2 kgf My = 0.01*-0.4577*5.179*134.592 = -429.4 kgf tr = (6*Mmax / Sp)0.5 = (100*6*429.41 / 1,406.138)0.5 = 13.54 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*0 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 0 mm The compression ring thickness is satisfactory.

V-8601 375

Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 0 / (2 * 20.3577) = 0 kgf/cm2 The gusset plate thickness is satisfactory. Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*0*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 0 mm The skirt thickness is satisfactory. Note: No local skirt reaction is present because the foundation resists the initial bolt preload. Anchor bolt load (empty, corroded + Wind) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*18,018.64 / 8 + 4 * 11,843.4 / (8*2.1558) = 1,395.44 kgf Required area per bolt = P / Sb = 0.9924 cm2 The area provided (11.0471 cm2) by the specified anchor bolt is adequate. Support calculations (Jawad & Farr chapter 12, empty, corroded + Wind) Base plate width, tc: 203.2 mm Average base plate diameter, d: 2,085.98 mm Base plate elastic modulus, Es: 2,038,900.1 kgf/cm2 Base plate yield stress, Sy: 2,531.048 kgf/cm2

Ec = 57,000*0.265154*Sqr(210.921) = 219,499.448 kgf/cm2 n = Es/Ec = 2,038,900.1 / 219,499.448 = 9.2889 ts = (N*Ab) / (p*d) = (8*1,486.4486) / (p*2,085.98) = 1.81 mm

V-8601 376

From table 12.4 for k = 0.478036: K1 = 2.0499, K2 = 1.9496 L1 = 1.8037, L2 = 33.6305, L3 = 30.8662 Total tensile force on bolting T = (M - 0.6*W *(L1 + L3)) / (L2 + L3) = (11,843.4 - 0.6*18,018.64 *(0.0458 + 0.784)) / (0.8542 + 0.784) = 1,753.18 kgf Tensile stress in bolts use the larger of fs or bolt preload = 0 kgf/cm2 fs = T / (ts * (d / 2) * K1) = 100*1,753.18 / (1.81 * (2,085.98 / 2) * 2.0499) = 45.189 kgf/cm2 Total compressive load on foundation Cc = T + W + Bolt Preload = 1,753.18 + 18,018.64 + 0 = 19,771.82 kgf Foundation bearing stress fc = Cc / (((tc - ts) + n*ts)*(d / 2)*K2) = 100*19,771.82 / (((203.2 - 1.81) + 9.2889*1.81)*(2,085.98 / 2)*1.9496) = 4.455 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. k = 1 / (1 + fs / (n*fc)) = 1 / (1 + 45.189 / (9.2889*4.455)) = 0.478036 Base plate required thickness (empty, corroded + Wind) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*4.455*687.842 = 96.5 kgf My = 0.01*-0.4577*4.455*134.592 = -369.4 kgf tr = (6*Mmax / Sp)0.5 = (100*6*369.42 / 1,406.138)0.5 = 12.56 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*671.72 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 7.39 mm The compression ring thickness is satisfactory.

V-8601 377

Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 671.72 / (2 * 20.3577) = 16.498 kgf/cm2 The gusset plate thickness is satisfactory. Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*671.72*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 0.83 mm The skirt thickness is satisfactory. Anchor bolt load (empty, new + Wind) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*21,573.2 / 8 + 4 * 11,897.4 / (8*2.1558) = 1,141.38 kgf Required area per bolt = P / Sb = 0.8117 cm2 The area provided (14.8645 cm2) by the specified anchor bolt is adequate. Support calculations (Jawad & Farr chapter 12, empty, new + Wind) Base plate width, tc: 203.2 mm Average base plate diameter, d: 2,085.98 mm Base plate elastic modulus, Es: 2,038,900.1 kgf/cm2 Base plate yield stress, Sy: 2,531.048 kgf/cm2

Ec = 57,000*0.265154*Sqr(210.921) = 219,499.448 kgf/cm2 n = Es/Ec = 2,038,900.1 / 219,499.448 = 9.2889 ts = (N*Ab) / (p*d) = (8*1,486.4486) / (p*2,085.98) = 1.81 mm

V-8601 378

From table 12.4 for k = 0.575399: K1 = 1.8243, K2 = 2.1692 L1 = -6.1866, L2 = 27.487, L3 = 36.9659 Total tensile force on bolting T = (M - 0.6*W *(L1 + L3)) / (L2 + L3) = (11,897.4 - 0.6*21,573.2 *(-0.1571 + 0.9389)) / (0.6982 + 0.9389) = 1,086.04 kgf Tensile stress in bolts use the larger of fs or bolt preload = 0 kgf/cm2 fs = T / (ts * (d / 2) * K1) = 100*1,086.04 / (1.81 * (2,085.98 / 2) * 1.8243) = 31.456 kgf/cm2 Total compressive load on foundation Cc = T + W + Bolt Preload = 1,086.04 + 21,573.2 + 0 = 22,659.24 kgf Foundation bearing stress fc = Cc / (((tc - ts) + n*ts)*(d / 2)*K2) = 100*22,659.24 / (((203.2 - 1.81) + 9.2889*1.81)*(2,085.98 / 2)*2.1692) = 4.589 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. k = 1 / (1 + fs / (n*fc)) = 1 / (1 + 31.456 / (9.2889*4.589)) = 0.575399 Base plate required thickness (empty, new + Wind) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*4.589*687.842 = 99.4 kgf My = 0.01*-0.4577*4.589*134.592 = -380.5 kgf tr = (6*Mmax / Sp)0.5 = (100*6*380.5 / 1,406.138)0.5 = 12.74 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*467.57 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 6.17 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm

V-8601 379

Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 467.57 / (2 * 20.3577) = 11.484 kgf/cm2 The gusset plate thickness is satisfactory. Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*467.57*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 0.65 mm The skirt thickness is satisfactory. Anchor bolt load (test, corroded + Wind) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*35,022.89 / 8 + 4 * 11,843.4 / (8*2.1558) = 120.12 kgf Required area per bolt = P / Sb = 0.0854 cm2 The area provided (11.0471 cm2) by the specified anchor bolt is adequate. Foundation bearing stress (test, corroded + Wind) Ac = pi*(Do

2 - Di2) / 4 - N*pi*db

2 / 4 = p*(228.91752 - 188.27752) / 4 - 8*p*4.91252 / 4 = 13,164.64 cm2 Ic = p*(Do

4 - Di4) / 64

= p*(228.91754 - 188.27754) / 64 = 7.3116E+07 cm4 fc = N*Ab*Preload / Ac + W / Ac + M / 2*Do / Ic = 8*14.8645*0 / 13,164.64 + 35,022.89 / 13,164.64 + 10*11,843.4 / 2*2,289.18 / 7.3116E+07 = 4.514 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. Base plate required thickness (test, corroded + Wind) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*4.514*687.842 = 97.8 kgf My = 0.01*-0.4577*4.514*134.592 = -374.3 kgf tr = (6*Mmax / Sp)0.5 = (100*6*374.31 / 1,406.138)0.5 = 12.64 mm The base plate thickness is satisfactory.

V-8601 380

Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*120.12 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 3.13 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 120.12 / (2 * 20.3577) = 2.95 kgf/cm2 The gusset plate thickness is satisfactory. Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*120.12*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 0.26 mm The skirt thickness is satisfactory. Anchor bolt load (test, new + Wind) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*38,272.75 / 8 + 4 * 11,897.4 / (8*2.1558) = -111.09 kgf The anchor bolts are satisfactory (no net uplift on anchor bolt) Foundation bearing stress (test, new + Wind) Ac = pi*(Do

2 - Di2) / 4 - N*pi*db

2 / 4 = p*(228.91752 - 188.27752) / 4 - 8*p*4.91252 / 4 = 13,164.64 cm2 Ic = p*(Do

4 - Di4) / 64

= p*(228.91754 - 188.27754) / 64 = 7.3116E+07 cm4

V-8601 381

fc = N*Ab*Preload / Ac + W / Ac + M / 2*Do / Ic = 8*14.8645*0 / 13,164.64 + 38,272.75 / 13,164.64 + 10*11,897.4 / 2*2,289.18 / 7.3116E+07 = 4.77 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. Base plate required thickness (test, new + Wind) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*4.77*687.842 = 103.4 kgf My = 0.01*-0.4577*4.77*134.592 = -395.5 kgf tr = (6*Mmax / Sp)0.5 = (100*6*395.48 / 1,406.138)0.5 = 12.99 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*0 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 0 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 0 / (2 * 20.3577) = 0 kgf/cm2 The gusset plate thickness is satisfactory. Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*0*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 0 mm The skirt thickness is satisfactory. Note: No local skirt reaction is present because the foundation resists the initial bolt preload.

V-8601 382

Anchor bolt load (vacuum, corroded + Wind) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*40,404.52 / 8 + 4 * 11,843.4 / (8*2.1558) = -283.5 kgf The anchor bolts are satisfactory (no net uplift on anchor bolt) Foundation bearing stress (vacuum, corroded + Wind) Ac = pi*(Do

2 - Di2) / 4 - N*pi*db

2 / 4 = p*(228.91752 - 188.27752) / 4 - 8*p*4.91252 / 4 = 13,164.64 cm2 Ic = p*(Do

4 - Di4) / 64

= p*(228.91754 - 188.27754) / 64 = 7.3116E+07 cm4 fc = N*Ab*Preload / Ac + W / Ac + M / 2*Do / Ic = 8*14.8645*0 / 13,164.64 + 40,404.52 / 13,164.64 + 10*11,843.4 / 2*2,289.18 / 7.3116E+07 = 4.923 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. Base plate required thickness (vacuum, corroded + Wind) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*4.923*687.842 = 106.7 kgf My = 0.01*-0.4577*4.923*134.592 = -408.2 kgf tr = (6*Mmax / Sp)0.5 = (100*6*408.2 / 1,406.138)0.5 = 13.2 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*0 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 0 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2

V-8601 383

Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 0 / (2 * 20.3577) = 0 kgf/cm2 The gusset plate thickness is satisfactory. Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*0*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 0 mm The skirt thickness is satisfactory. Note: No local skirt reaction is present because the foundation resists the initial bolt preload. Anchor bolt load (operating, corroded + Vortex shedding) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*40,404.52 / 8 + 4 * 28,050.6 / (8*2.1558) = 3,475.42 kgf Required area per bolt = P / Sb = 2.4716 cm2 The area provided (11.0471 cm2) by the specified anchor bolt is adequate. Support calculations (Jawad & Farr chapter 12, operating, corroded + Vortex shedding) Base plate width, tc: 203.2 mm Average base plate diameter, d: 2,085.98 mm Base plate elastic modulus, Es: 2,038,900.1 kgf/cm2 Base plate yield stress, Sy: 2,531.048 kgf/cm2

Ec = 57,000*0.265154*Sqr(210.921) = 219,499.448 kgf/cm2 n = Es/Ec = 2,038,900.1 / 219,499.448 = 9.2889 ts = (N*Ab) / (p*d) = (8*1,486.4486) / (p*2,085.98) = 1.81 mm From table 12.4 for k = 0.453412: K1 = 2.1052, K2 = 1.8923 L1 = 3.8254, L2 = 35.1724, L3 = 29.3102 Total tensile force on bolting T = (M - 0.6*W *(L1 + L3)) / (L2 + L3) = (28,050.6 - 0.6*40,404.52 *(0.0972 + 0.7445)) / (0.8934 + 0.7445) = 4,668.8 kgf Tensile stress in bolts use the larger of fs or bolt preload = 0 kgf/cm2 fs = T / (ts * (d / 2) * K1) = 100*4,668.8 / (1.81 * (2,085.98 / 2) * 2.1052) = 117.178 kgf/cm2 Total compressive load on foundation Cc = T + W + Bolt Preload = 4,668.8 + 40,404.52 + 0 = 45,073.32 kgf

V-8601 384

Foundation bearing stress fc = Cc / (((tc - ts) + n*ts)*(d / 2)*K2) = 100*45,073.32 / (((203.2 - 1.81) + 9.2889*1.81)*(2,085.98 / 2)*1.8923) = 10.464 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. k = 1 / (1 + fs / (n*fc)) = 1 / (1 + 117.178 / (9.2889*10.464)) = 0.453412 Base plate required thickness (operating, corroded + Vortex shedding) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*10.464*687.842 = 226.8 kgf My = 0.01*-0.4577*10.464*134.592 = -867.6 kgf tr = (6*Mmax / Sp)0.5 = (100*6*867.65 / 1,406.138)0.5 = 19.24 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*1,741.79 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 11.9 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 1,741.79 / (2 * 20.3577) = 42.78 kgf/cm2 The gusset plate thickness is satisfactory.

V-8601 385

Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*1,741.79*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 1.57 mm The skirt thickness is satisfactory. Anchor bolt load (empty, corroded + Vortex shedding) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*18,018.64 / 8 + 4 * 67,926.8 / (8*2.1558) = 14,402.86 kgf Required area per bolt = P / Sb = 10.2428 cm2 The area provided (11.0471 cm2) by the specified anchor bolt is adequate. Support calculations (Jawad & Farr chapter 12, empty, corroded + Vortex shedding) Base plate width, tc: 203.2 mm Average base plate diameter, d: 2,085.98 mm Base plate elastic modulus, Es: 2,038,900.1 kgf/cm2 Base plate yield stress, Sy: 2,531.048 kgf/cm2


V-8601 386

Foundation bearing stress fc = Cc / (((tc - ts) + n*ts)*(d / 2)*K2) = 100*53,611.99 / (((203.2 - 1.81) + 9.2889*1.81)*(2,085.98 / 2)*1.2234) = 19.252 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. k = 1 / (1 + fs / (n*fc)) = 1 / (1 + 707.795 / (9.2889*19.252)) = 0.2017 Base plate required thickness (empty, corroded + Vortex shedding) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*19.252*687.842 = 417.2 kgf My = 0.01*-0.4577*19.252*134.592 = -1,596.3 kgf tr = (6*Mmax / Sp)0.5 = (100*6*1,596.29 / 1,406.138)0.5 = 26.1 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*10,521.02 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 29.25 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 10,521.02 / (2 * 20.3577) = 258.404 kgf/cm2 The gusset plate thickness is satisfactory.

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Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*10,521.02*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 5.2 mm The skirt thickness is satisfactory. Anchor bolt load (vacuum, corroded + Vortex shedding) P = -0.6*W / N + 4 * M / (N*BC) = -0.6*40,404.52 / 8 + 4 * 28,050.6 / (8*2.1558) = 3,475.42 kgf Required area per bolt = P / Sb = 2.4716 cm2 The area provided (11.0471 cm2) by the specified anchor bolt is adequate. Support calculations (Jawad & Farr chapter 12, vacuum, corroded + Vortex shedding) Base plate width, tc: 203.2 mm Average base plate diameter, d: 2,085.98 mm Base plate elastic modulus, Es: 2,038,900.1 kgf/cm2 Base plate yield stress, Sy: 2,531.048 kgf/cm2


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Foundation bearing stress fc = Cc / (((tc - ts) + n*ts)*(d / 2)*K2) = 100*45,073.32 / (((203.2 - 1.81) + 9.2889*1.81)*(2,085.98 / 2)*1.8923) = 10.464 kgf/cm2 As fc <= 116.569 kgf/cm2 the base plate width is satisfactory. k = 1 / (1 + fs / (n*fc)) = 1 / (1 + 117.178 / (9.2889*10.464)) = 0.453412 Base plate required thickness (vacuum, corroded + Vortex shedding) From Brownell & Young, Table 10.3:, l / b = 0.1957 Mx = 0.01*0.0046*10.464*687.842 = 226.8 kgf My = 0.01*-0.4577*10.464*134.592 = -867.6 kgf tr = (6*Mmax / Sp)0.5 = (100*6*867.65 / 1,406.138)0.5 = 19.24 mm The base plate thickness is satisfactory. Check the compression ring for bolt load (Jawad & Farr equation 12.13) tcr = (3.91*F / (Sy*(2*b / w+w / (2*l)-db*(2 / w+1 / (2*l)))))0.5 = (100*3.91*1,741.79 / (2,531.048*(2*133.35 / 127+127 / (2*67.92)-49.13*(2 / 127+1 / (2*67.92)))))0.5 = 11.9 mm The compression ring thickness is satisfactory. Check gusset plate thickness (Bednar chapter 4.3) Radius of gyration of gusset r = 0.289*tg = 0.289*15.88 = 4.59 mm Cross sectional area of one gusset Ag = tg*(b - 0.25*25.41) = 0.01*15.88*(134.59 - 0.25*25.41) = 20.3577 cm2 Gusset allowable stress Sa = 0.07031*(17000 - 0.485*(h / r)2) = 1,195.27 - 0.0341*(244.48 / 4.59)2 = 1,098.393 kgf/cm2 Gusset axial stress due to bolt load Sg = F / (2 * Ag) = 1,741.79 / (2 * 20.3577) = 42.78 kgf/cm2 The gusset plate thickness is satisfactory.

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Check skirt thickness for bolt load reaction (Brownell & Young eq. 10.59) t = 1.76*(F*l / (Mb*hc*Ss))2 / 3*(ODs / 2)1 / 3 = 1.76*(100*1,741.79*67.91 / (793.25*312.75*1,804.896))2 / 3*(2,020 / 2)1 / 3 = 1.57 mm The skirt thickness is satisfactory.

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The local stress in the WRC 107 calculation are excessive.

A stiffener beam is required to prevent the ring section from being over stressed from tail lug loading.

Added tailing beam on skirt base ring

Beam material SS400

Yeild strength of material = Ys = 2531 kg/cm2

Beam length = L = 3124 mm

Beam size H-150x150x7x10

Elasticity of material = E = 10800

Raduis gyraion of beam = r = 63.9 mm

Section area of beam = a = 40.14 cm2

Maximum Load = W = 2300 kg

L/r = < 60

Allowable tensile stress = 0.6Ys = 1518.6 kg/cm2

Stress at beam = W/a = 57.2994519 kg/cm2 Acceptable

Reference : AISC specification, Code and Standard.

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APPENDIX I : Calculation Stress Design for Support Demister

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Stress Analysis Anchor bolt and Support for Demister.Material of demister for internal part A 240 TP 304Yeild strength of support demister = γd = 205 N/mm2

Allowable shear stress of support demister = Sd = 0.4γd82 N/mm2

Material of anchor bolt for internal par SS304Yeild strength of anchor bolt = γa = 205 N/mm2

Allowable shear stress of anchor bolt = Sa = 0.4γd82 MPa

Bolt size = D = M10Section area of bolt = Ab = 55.1 mm2

Dimeter of bolt holes = d = 12 mmNumber of bolt holes = N1 = 4

Outside Effective Demister Diameter = Di = 1990 mm

Back Pressure (Design as Internal Pressure) = Pi = 3.5 bar (g)

Weight of internal part = W1 = 392 N

Weight of liquid = W2 = 4,900 N

Load for Pressure = W3 = PiD/4= 1,741 N

Safety factor = k = 2Total = W4 = k(W1+W2+W3)

= 14,067 NWidth of Demister l = 56 mmBending Moment Load at Clip Support = M = W4*l

= 14,067 N-mmThickness of Support Demister = td = 6 mmHight of Support Demister = h = 50 mmSection Modulus = Z = th2/4

= 3,750 mm3

Area of support demister = Ad = 81,053.090 mm2

Shear stress at bolt = σa = (W/N1)/Ab < Sa

= 63.82259528 N/mm2 PASSShear stress at support demister (Method I) = σah = W/Ad < Sd

= 0.173546746 N/mm2 PASSShear stress at support demister (Method II) = M/Z < 0.6σah

= 3.751066667 N/mm2 PASS

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Support Ring Removable Calculation

Length of Support Ring Removable = L = 400 mmArea of support demister = As = 2,400.000 mm2

Load form Support Ring Removable = W5 = W4/L35.16625 N

Shear stress at support demister = σah = W5/As < Sd

= 0.01 N/mm2 PASSShear stress at bolt = σa = (W5/N1)/Ab < Sa

= 0.159556488 N/mm2 PASSWeld Stress:Weld stress, tensile, bending and shere during weight: (Demister)Direct shear:Shear stress of weight angle = α = 90 Deg.Weight = W4 = 14,067 NLength of weld = = 50 mmAllowable Stress, Weld Shear, τal = = 68 N/mm2

Thickness of weld = = 6 mm.Thickness of support = = 6 mm.

Aweld = 2(0.707)tw(L+t)

= 475 mm2

τt = Wr(cos(α))/Aweld

= 1.814E-15 N/mm2

τs = Wr(sin(α))/Aweld

= 29.607202 N/mm2τb = Mc/I

= 2.534 N/mm2τratio = sqr((τt+τb)

2+τs2)/τallowable

= 0.4369918 <=1 PASSWeld sizeBending Moment = Mb = 411,445 NmmTreat weld as line = Sx = d2/3

= 833.33333 mmForce from bending moment = σb = M/Sx

= 493.73 N/mmForce from shear force = σs = P/A

= 29.61 N/mmTotal force = qT = sqr(σb

2+σs2)

= 494.62106 N/mm

Allowable stress = 0.3σu

weld size = x = 0.0151036 mmThere fore we choose the weld size = 6 mm.

Diamension will show after drawing demister finished

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Compress report for pressure vessel

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