Gases properties

379.5 cu ftGas Density = 379.5 * MM lb moleFor any perfect gas MR in lb-ft is 1545.One pound mol of any perfect gas occupies 379.5 cu ft at 60F and 1 atm. Universal Gas constant= MR

M kg mole22.84 cu mtGas Density = 22.84 * MFor any perfect gas MR in kg-m is --------.One Kg mol of any perfect gas occupies 22.84 cu mtat 0C and 1 atm.

w

w

Turbo Expanders

Comp.HP.

CompRessor HP

had(per stage) = 144 * (Pia / dv) * k / (k-1) * [ (r)^((k-1)/k) -1 ] =22838lbf*ft/lb

had(per stage) = Zavg * R / MW * (ti+460) * k / (k-1) * [ (r)^((k-1)/k) -1 ] =22836lbf*ft/lb

INOUT

MHP = Motor Horse power9919

Zav =0.830.83

Vs =208300SCFPM

r = Stage Pressure ratio1.81

R1545

k =Cp/Cv1.25

k-1 /Nk0.2

Nk / k-15

MW = Gas molecular weight19.20lb/ lbmole

P10501900psia

ti =83F0

to =174F0

N Number of stages1

Adiabatic efficiencyead0.75

Gear efficiency0.02

Gas densities:

dv = P*MW/10.73/(t+460)/Z4.176.46lb/ft3

Mass flowrate:

w1 = Vs / 379.5 * MW1053810538lb/min

Volumetric flowrate:

Vi = w1/dv25281631CFPM

Adiabatic head had22838lbf*ft/lb

Polytropic head hp30450.1888090142lbf*ft/lb

Gas Horse Power

Ghp =w1* had9724

ead /33000

C.C CALCULATION

Actual Gas VolumeTo Standard Gas Volume

Vs = Vi ( Pi/14.7 ) ( 520/ (ti +460) )

Vi = Vs( 14.7/Pi ) ((ti +460)/ 520 )

Vi cfmP psiat FVs cfmVi = ACTUAL INLET GAS

3045105083208300VOLUME

Vs cfmP psiat FVi cfmVs = STANDARD GAS

2083001050833045VOLUME

CENTRIFUGAL COMPRESSORS CALCULATION

={ }

26.1 MW

K1 Z1 T10

1/2

COMP.INTER. PR.

COMPRESSOR INTERMEDIATE PRESSURE

P0P1P2P3P4

P11.4595094858Barg

P00Barg

PT89BargP25.049186911Barg

N5No of Stages

P313.8780325892Barg

RT90.0P435.592662284Barg

r =P4/P02.5

1/N0.20

1st stage

2nd stage

3rd stage

4th stage

pressure drop

PRESSURE DROP CALCULATION

DESCRIPTIONSYMBOLUNITSVALUES

RATE OF FLOWqgpm3600.00

qm/hr817.56

DENSITY OF THE FLUIDrkg/m1150.0034.07

SPECIFIC GRAVITY1.15

DYNAMIC VISCOSITYmicP70

ROUGHNESS OF THE PIPEKfeet0.00015

0.8208

PIPE NOMINAL SIZEdNB

PIPE SCHEDULE

OD OF THE PIPEODmm610

THICKNESS OF THE PIPEtmm9.53

ID OF THE PIPEdmm590.94

Dm0.59094

Dffeet1.93887414

K / Df RATIOK/D0.0000773645101.6

FLOW AREAAm0.2742689583

DENSITY OF THE FLUIDrkg/m1150.00

FLOW RATEq'm/sec0.2271

VELOCITY OF FLOWVm/sec0.83

REYNOLD'S NUMBERRe8038.7

FACTOR A4A4i0.0018291831

FRICTION FACTORf0.0328

FRICTION FACTOR FITTINGSfT0.012

Nos.K - ValueDP

LENGTH OF PIPE (metres)70038.8850.1533228.6

FITTINGSK - Value

ENTRANCE0.7810.7800.0031

EXIT1.011.0000.0039

90 BUTT WELDED BENDS14 fT101.6800.0066

45 BUTT WELDED BENDS10 fT00.0000.0000

TEE - FLOW THROUGH RUN20 fT10.2400.0009

TEE - FLOW THROUGH BRANCH60 fT00.0000.0000

GATE VALVE8 fT10.0960.0004

GLOBE VALVE340 fT00.0000.0000

CHECK VALVE50 fT10.6000.0024

BALL VALVE3 fT00.0000.0000

PLUG VALVE18 fT10.2160.0009

BUTTERFLY VALVE25fT00.0000.0000

DIAPHRAM VALVE362ft00.0000.0000

RESIN TRAP / STRAINER379fT00.0000.0000

EJECTOR233fT00.0000.0000

EXPANSION JOINT10fT00.0000.0000

INPUTS FOR REDUCERS

SMALLER PIPE SIZE00.0000.0000

INPUTS FOR EXPANDERS

LARGER PIPE SIZE00.0000.0000

MISCELLANEOUS K VALUES0.0000.0000

TOTAL PRESSURE DROP0.171bar

2.521psi

Pressure with margin3psi

0.1715

&L&"CG Times,Regular"&8k:5543\calculation\&F

FOR ENTRANCE K = 0.78

FOR EXIT K = 1

FOR WELDED BENDSK = 14 fT

FOR FLOW THRO' RUN K = 20 fT

FOR FLOW THRO' BRANCH K = 60 fT

FOR GATE VALVE K = 8 fT

FOR GLOBE VALVE K = 340 fT

FOR CHECK VALVE K = 50 fT

K = f * L / D f - Friction Factor L - Length of pipe, m D - Diameter of pipe, m

DP = 0.000 005 * K * r * V DP - Pressure drop, bar K - Resistance coefficient r - Density, kg/m V - Velocity of flow, m/sec

FOR CHECK VALVE K = 50 fT

FOR CHECK VALVE K = 50 fT

FOR CHECK VALVE K = 18 fT

D

To find fT :TABLE FOR ANGLES IN DEGREE

qTHETA

Nominal SizeFriction FactorLINE PIPE DIMENSIONS

NBinchfTBUTTERFLYDIAPHRAMRESIN TRAPEJECTOREXP.JOINTODSCH 10SCH 20SCH 30STDSCH 40XSSCH 60SCH 80SCH 100SCH 120SCH 140SCH 160XXS1520253240506580100125150200250300350400450500600

150.50.02745fT4536237923310SCH 1021.32.272.273.733.734.787.47INLETOUTLETHHANGLE15

200.750.02545fT4536237923310SCH 2026.72.872.873.913.915.567.82PIPE d1PIPE d2INMMDEGREES20

2510.02345fT4536237923310SCH 3033.43.383.384.554.556.359.0960.348.3376.29.0025

321.250.02245fT4536237923310STD42.23.563.564.854.856.359.7060.342.5376.213.3232

401.50.02145fT4529330619110SCH 4048.33.683.685.085.087.1410.1560.333.4376.220.0240

5020.01945fT4532433921010XS60.33.913.915.545.548.7411.0760.326.7376.224.875024.8720.0213.329.00

652.50.01845fT4534235822210SCH 6073.05.165.167.017.019.5314.027360.33.588.98.176525.0519.4715.828.17

8030.01845fT4534235822210SCH 8088.95.495.497.627.6211.1315.247348.33.588.915.828029.2525.7318.2810.22

10040.01745fT4536235823510SCH 100114.36.026.028.568.5611.1313.4917.127342.53.588.919.4710035.9929.7622.9814.25

12550.01645fT4536237923310SCH 120141.36.556.559.539.5312.7015.8819.057333.53.588.925.0512535.3730.1023.3112.14

15060.01545fT4536237923310SCH 140168.37.117.1110.9710.9714.2718.2621.9588.9733.588.910.2215037.6731.7321.8811.04

20080.01445fT4536237923310SCH 160219.16.357.08.188.1812.7010.3112.7015.0918.2620.6223.0122.2388.960.33.588.918.2820037.9528.6418.92

250100.01435fT3536237923310XXS273.16.357.89.279.2712.7012.7015.0918.2621.4425.4028.5825.4088.948.33.588.925.7325048.1340.6732.8417.27

300120.01335fT3536237923310CELL LINK:4323.96.358.49.5310.3112.7014.2717.4821.4425.4028.5833.3225.4088.942.53.588.929.2530048.2041.7028.7114.03

350140.01335fT3536237923310355.66.357.929.59.5311.1312.7015.0919.0526.8327.7931.7535.71114.388.94101.614.2535031.6723.3614.245.63

400160.01325fT2536237923310406.46.357.929.59.5312.7012.7016.6621.4426.1930.9636.5340.49114.3734101.622.9840037.0229.5121.2313.368.17

450180.01225fT25362379233104576.357.9211.19.5314.2012.7019.0523.8329.3634.9339.6745.24114.360.34101.629.7645034.6827.1419.9315.167.60

500200.01225fT25362379233105086.359.5312.79.5315.0912.7020.6226.2032.5038.1044.4050.00114.348.34101.635.9950026.0420.6317.0611.425.75

600240.01225fT25362379233106106.359.5314.39.5317.4812.7024.6131.0038.9046.0052.4059.50141.3114.3512712.1460036.3931.2227.8022.3416.8011.13

141.388.9512723.31

CELL LINK :19fT0.01225fT2536237923310OD610141.373512730.10

THK9.53141.360.3512735.37

ID590.94168.3141.35.5139.711.04

168.3114.35.5139.721.88

REDUCERS168.388.95.5139.731.73

SIZE19OD610168.3735.5139.737.67

SCHDULE6THK12.7219.1168.36152.418.92

ID584.6219.1141.36152.428.64

b0.9893219.1114.36152.437.95

ANGLE0.00273.1219.17177.817.27

K0.0000273.1168.37177.832.84

273.1141.37177.840.67

EXPANDERS273.1114.37177.848.13

SIZE16OD406.4323.1273.18203.214.03

SCHDULE5THK12.7323.1219.18203.228.71

ID381323.1168.38203.241.70

b1.5510323.1141.38203.248.20

ANGLE0.00355.6323.113330.25.63

K0.0000355.6273.113330.214.24

355.6219.113330.223.36

355.6168.313330.231.67

406.4355.614355.68.17

406.4323.114355.613.36

406.4273.114355.621.23

406.4219.114355.629.51

406.4168.314355.637.02

457406.4153817.60

457355.61538115.16

457323.11538119.93

457273.11538127.14

457219.11538134.68

508457205085.75

508406.42050811.42

508355.62050817.06

508323.12050820.63

508273.12050826.04

6075082050811.13

6074572050816.80

607406.42050822.34

607355.62050827.80

607323.12050831.22

607273.12050836.39

T

MATERIAL

IS 3589

MATERIALNBODMIN.THK in mmIS 1239

IS 1239610.52.6CELL LINK3

IS 12398142.9

IS 12391017.52.9

IS 12391521.83.2

IS 12392027.33.2

IS 12392534.24.0

IS 12393242.94.0

IS 12394048.84.0

IS 12395060.84.5

IS 12396576.64.5

IS 12398089.54.8

IS 12391001155.4

IS 1239125140.85.4

IS 3589150168.34

IS 3589175193.74

IS 3589200219.14

IS 3589225244.54

IS 3589250273.14

IS 3589300323.94

IS 3589350355.64

IS 3589400406.44

IS 3589450457.05

IS 3589500508.05

IS 3589550559.05

IS 3589600610.06

IS 3589650660.06

IS 3589700711.06

IS 3589750762.06

IS 3589800813.06

IS 3589850864.06

IS 3589900914.06

IS 3589950965.07

IS 358910001016.07

IS 358910501067.07

IS 358911001118.07

IS 358911501168.07

IS 358912001219.07

IS 358913001321.08

IS 358914001422.08

IS 358915001524.08

IS 358916001626.08

IS 358917001727.010

IS 358918001829.010

IS 358920002032.010

CELL LINK18273.14

To

Pump head calculation

UnitsUnits

Line pressure drop2.8psi2.8psi

Total elevation50.0ft21.6psi

Terminal pressure80.0psi80.0psi

Total104.4psi

i.e. Discharge head241ft

Suction head15ft

Total Developed Head256ft

Total pressure required at pump discharge103psig

i.e.118psia

P =(Q x H x sp.gr.)/(1714 x Eff)

SAFE

IS

IS 3589 : 1991 OUTSIDE DIAMETERS (mm)IS 1239 (Part I) : 1990 Dimensions & Nominal Mass of Steel Tubes - Heavy

NBODNominalOutside DiameterThicknessMass of Tubes

BoreMaximumMinimumPlain EndScrewed

150 NB168.3

175 NB193.76 NB10.59.82.60.4870.490

200 NB219.18 NB14.013.22.90.7650.769

225 NB244.510 NB17.516.72.91.021.03

250 NB273.1

300 NB323.915 NB21.821.03.21.441.45

350 NB355.620 NB27.326.53.21.871.88

400 NB406.425 NB34.233.34.02.932.95

450 NB457.0

500 NB508.032 NB42.942.04.03.793.82

550 NB559.040 NB48.847.94.04.374.41

600 NB610.050 NB60.859.74.56.196.26

650 NB660.0

700 NB711.065 NB76.675.34.57.938.05

750 NB762.080 NB89.588.04.89.9010.4

800 NB813.0100 NB115.0113.15.414.514.8

850 NB864.0

900 NB914.0125 NB140.8138.55.417.918.4

950 NB965.0150 NB166.5163.95.421.321.9

1000 NB1016.0

1050 NB1067.0

1100 NB1118.0

1150 NB1168.0

1200 NB1219.0

1300 NB1321.0

1400 NB1422.0

1500 NB1524.0

1600 NB1626.0

1700 NB1727.0

1800 NB1829.0

2000 NB2032.0

3219.1

Pipes of outside diameter other than those covered in the

above table shall be permissible as agreed to between

the manufacturer and the purchaser.

Minimum Specified Thickness of Pipes

168.3 to 406.6 mm4 mm

Above 406.6 to 559.0 mm5 mm

Above 559.0 to 914.0 mm6 mm

Above 914.0 to 1219.0 mm7 mm

Above 1219.0 to 1620.0 mm8 mm

Above 1620.0 to 2032.0 mm10 mm

Turbo Expanders