Condenser supply contract report

Jose Botelho Direito EN/CV/DC

Thermosyphon cooling workshop §5Thursday, October 20, 2011

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Outline

• Technical Requirements

• Request for Quotation

• Design from D.A.T.E.

• Construction Schedule

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Technical Requirements

• Thermal Requirements:– Total Condenser cooling power: 170kW

• De-superheating: 28.7 kW• Condensing: 135.8 kW• Sub-cooling: 5.5 kW

• DO-26673/EN-CV – EMDS document number 1134974

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Technical Requirements• Stainless Steel Shell and Cupronickel or SSt cooling tubes• FOAMGLAS Insulation• Storage capacity of 2.5m3• Pressure: PN25• Design temperature from -70°C to 63°C• Leak tightness of 10-4mbar.lt/s• Standards:

– Pressure Equipment Directive 97/23 (PED)– Leak tightness: BS EN13184:2001– Cleaning: ASTM A380– Earthquake loading: EUROCODE 8

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Request for Quotation• Companies contacted (11x):

– AEL (de); KLIMAL (de); ALFA LAVAL (se); APPARETEBAU-CRIMMITSCHAU (de); ARSOPI (pt); BOWMAN (uk); D.A.T.E. (fr); Novoa Equipment Limited (uk); Onda (it); SWEP (se); GEA (de).

• Offers received (3x):– D.A.T.E. – ARSOPI – GEA

• DO-26673/EN-CV – EMDS document number 1134974

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Design proposal from D.A.T.E.

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DESUPERHEATING and CONDENSATION ZONE SUBCOOLING ZONEHEAT TRANSFER COEFFICIENT 299,65 W.m.-2°C-1 112,8 W.m.-2°C-1

HEAT TRANSFERT SURFACE 86,85 m2 9,07 m2

PRESSURE DROP 6 mbar 10 mbarNUMBER OF TUBES 240 tubes 28 tubes

Thermosyphon C3F8 Liquid outlet

Thermosyphon C3F8 Vapour inlet

Brine Condenser IN

Brine Condenser OUT

Brine Sub-cooler IN

Brine Sub-cooler OUT

De-superheating & Condensing tubes (240x)

Sub-cooling tubes (28x)

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Construction Schedule

• Condenser Construction Schedule– October 2011: Contract start– November 2011: Detailed design– January 2012 : Purchasing of material– March 2012: Condenser construction– April 2012: Final pressure tests– April 2012: Insulation of the condenser– April 2012: Delivery at CERN

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• Any questions?

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