Pierre Bonneau EN/CV/DC

5th Thermosyphon Workshop 1

Pierre BonneauEN/CV/DC

20 October, 2011

Hydraulic components selection

Review of the selection criteria and purchase advancement status of the hydraulic components of the TS. Expected time

for mechanical assembly

5th Thermosyphon Workshop 220 October, 2011

Plan

• Scope• Sharepoint• Selection Criteria• Purchase Advancement Status• Technical Specifications• Construction Time• Conclusion


Scope

TS Accessories – Balcony USA15

Brine circuit – 1st Floor and roof Bd. 3184

Water circuit – 1st Floor Bd.3184

Chiller, condenser, piping, insulation, civil ingineering and electrical material not included


Sharepoint

Around 350 files already uploadedPeople interested should request the access

(34 persons now)


Sharepoint

Once the order is sent !!!


Sharepoint


Sharepoint

Part list for all componentsCircuit: •TS•Brine•Water

Status of the order: •Review/Pending•Offer requested•Offer received•Ordered•Arrived/Stock

Description of the componentsFunctionP&I referenceSupplierPriceN° DAI


Sharepoint

Worksheets with the requested specifications and the comparison of the suppliers for:

Heat ExchangerValveFlowmeterRelief valveHeaterFilterInstrumentsPumpPneumatic

920 October, 2011 5th Thermosyphon Workshop

Selection CriteriaBased on document Full scale thermosiphon technical note EDMS 1083852

Fluid C6F14Flow [kg/s] 40Flow [m3/h] 75T[°C] -70 -65Pressure [bar.a] 15 1Density [kg/m3] 1920Thermal conductivity [W/m.K] 0.068Dynamic viscosity [µPa.s] 5790Specific Heat [kJ/kg.K] 0.905Enthalpy [kJ/kg] Estimated Power [kW] 180

Brine circuit. C6F14 Characteristics.

C3F8 characteristics for the thermosiphon components.Nominal Flow = 1.2 [kg/s] = 3.2 [m3/h] @ 1 bar.a / 20°CMaximum operating pressure 40 bar.

Operating point

Pressure [bar]

Temperature [°C]

Density [kg/ m3]

Enthalpy [kJ / kg]

Dynamic Viscosity [µPa.s]

Thermal conductivity

[ W/ m.K]

Specific Heat [kJ / K.kg]

Physical

State

Flow [m3/ h]

A 0.5 20 3.90 310.8 12 0.013 0.77 Superheated Vapour

1120

B 0.51 -20 4.65 280.6 10.5 0.010 0.71 Superheated vapour

948

C 0.309 -251 2.85 277.4 10 0.010 0.70 Superheated vapour

1534

D 0.309 -60 1699 140.3 657 0.068 0.93 Saturated liquid

2.54

E 0.42 -65 1717 135.7 660 0.065 0.94 Sub-cooled liquid

2.52

F 16.1 -62 1712 139.0 660 0.063 0.95 Sub-cooled liquid

2.52

G 16.1 -51 1672 149.2 660 0.063 0.96 Sub-cooled liquid

2.58

H 16 -20 1552 179.4 248 0.053 1.02 Sub-cooled liquid

2.78

I 16 20 1365 222.0 145 0.043 1.15 Sub-cooled liquid

3.16

I ’ 0.5 -51 7.89 222.0 Two-phase 66% vapour

1 Temperature of -28°C from thermal expansion plus +3°C due to heat pick-up. 2 Estimated value – it depends on the liquid level inside the condenser that was estimated being 1 meter.


Selection Criteria

• Fluid: Fluorocarbons C2F6, C3F8, C6F14• Pressure: PN16, PN40, DESP 97/23EC approval• Temperature: 20°C to -70°C. Cryo extension• Material: Stainles steel, flat metallic gasket, no

fluorinated plastic• Leak tightness: General 10-7 mbar.l/s• Cleaning: every part degreased, driers, 1µm filter• Safety: Twin relief valves with 3 ways valve,

Deported sensors, Double switches on valves


Purchase advancement status

• TS circuit168 kCHF spent. Almost all components ordered. All deliveries by the end of November.Still pending:

• New dummy load: 10 kCHF• Piping accessories (pipe, flexibles, flandes, belows, etc..): 30 kCHF• Fluid C3F8: 2 Tonnes = 87 kCHF

• Brine circuit30 kCHF spent for valves.Quotation requests for 180 kCHF + 118 kCHF for fluid.Longer delivery time is 4 months (pumps and filter)

• Water circuitDesign on-going. Evaluated to 100 kCHF

Chiller, condenser, piping, insulation, civil ingineering and electrical material not included

Total will be around 500 kCHF + 205 kCHF for fluid !!!


Some Technical SpecificationsFilter: Deshydrator 13X

Special stainless steel housing for molecular sleeves 13X cartridgesDN50PN40





Some Technical Specifications

Deshys and Filters

Deshys and Filters


Some Technical SpecificationsFilter 1 µm

Stainless steel housingDN50PN40DP max 300 mbar


Some Technical SpecificationsSubcooling heat exchanger

Stainless steel welded platesL.C3F8/G.C3F836 kW50 mbar pressure drop on the gas side !!!PN40360 kg






Subcooling HEX

Heater 15.5 X 2 kW



Heater15.5X2 kW



Dummy Load 107 kW for test @ 100% and run @ 10% 1st design


Some Technical SpecificationsMagnetic drive pump for Brine circuit -70°C

Fluid C6F14

Flow [kg/s] 40

Flow [m3/h] 75

T[°C] -70

Density [kg/m3] 1920

Head [m] 40

NPSHa [m] 7.5

NPSHr (pump) [m] <<7.5



Relief valve metal/metal with flange.2 reliel valves with 3-ways valve system everywhere.



Control valve with cryo extension and digital controllerWith bellow extension bonnet4-20mA and 6 bar inputlinkage-less feedback system with 4-20mA output

•TS Circuit C3F8• 2.58 m3/h; dP 0.2b; Cv=10 (2 valves for subcooling Gas)• 1.2 to 0.24 kg/s; Cv=1.5 (Expansion in Dummy Load)

•Brine Circuit C6F14• 71.7 m3/h; dP 1b; Cv=160 (Condensation)• 2.9 m3/h; dP 1b; Cv=6.3 (Subcooling)• 7.5 m3/h; dP 2b; Cv=8.5 (Discharge)






Control valves


Some Technical SpecificationsButt weld stop valve with bellow seals and metallic seat


Some Technical SpecificationsManual ball valve with UHMWPE seat and cryo options

Instrumentation Draining and fillingRelief valves


Some Technical SpecificationsInstrumentations and connections

Socket-well design well for Pt100 with extension for insulation

Deported manifold for pressure instrumentation


Some Technical SpecificationsFlanges Connections: Flange type B1 according DIN EN 1092-1Smooth finish with spiral woung gasket

THE MOST USED SURFACES AREStock FinishThe most widely used of any flange surface finish, because practically, issuitable for all ordinary service conditions. Under compression, the soft facefrom a gasket will embed into this finish, which helps create a seal, and a highlevel of friction is generated between the mating surfaces. The finish for theseflanges is generated by a 1.6 mm radius round-nosed tool at a feed rate of0.8 mm per revolution up to 12 inch. For sizes 14 inch and larger, the finish ismade with 3.2 mm round-nosed tool at a feed of 1.2 mm per revolution.Spiral SerratedThis is also a continuous or phonographic spiral groove, but it differs from thestock finish in that the groove typically is generated using a 90-deg tool whichcreates a "V" geometry with 45° angled serration.Concentric SerratedAs the name suggests, this finish is comprised of concentric grooves. A 90° toolis used and the serrations are spaced evenly across the face.Smooth FinishThis finish shows no visually apparent tool markings. These finishes are typicallyutilized for gaskets with metal facings such as double jacketed, flat steel andcorrugated metal. The smooth surfaces mate to create a seal and depend onthe flatness of the opposing faces to effect a seal. This is typically achieved by having the gasket contact surface formed by a continuous (sometimescalled phonographic) spiral groove generated by a 0.8 mm radius round-nosed tool at a feed rate of 0.3 mm per revolution with a depth of 0.05 mm.This will result in a roughness between Ra 3.2 and 6.3 micrometers (125 - 250 micro inch).

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TS Construction estimation time (mechanical)

WeekTS Skid

Dummy load 56 kWDummy load 107 kWHeater 12.2 kWFilters Unit X2Subcooling HEXManifold Instrumentation X15Pt100 X9Relief valves X5Piping/ConnectionAssembly workshopX-rayInstallation USA15Pressure test balconyConnection USA15/SurfaceFinal test

13 14 15 167 8 9 10 11 121 2 3 4 5 6



Conclusion

•Ordering for TS circuit almost completed.•All components for TS to be delivered at the end of 2011.•We will start construction phase of the “balcony unit” beginning of 2012. We need a 2nd welder.•We have to integrate the installation of the condenser and its accessories in the schedule.•We’ll order all components for Brine circuit before end of 2011.

Pierre Bonneau EN/CV/DC

Documents

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