Condenser supply contract report Jose Botelho Direito EN/CV/DC Thermosyphon cooling workshop §5 Thursday, October 20, 2011

Outline Technical Requirements Request for Quotation Design from D.A.T.E. Construction Schedule 20/10/2011Thermosyphon cooling workshop §52

Technical Requirements Thermal Requirements: – Total Condenser cooling power: 170kW De-superheating: 28.7 kW Condensing: kW Sub-cooling: 5.5 kW DO-26673/EN-CV – EMDS document number /10/2011Thermosyphon cooling workshop §53

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 mbar.lt/s Standards: – Pressure Equipment Directive 97/23 (PED) – Leak tightness: BS EN13184:2001 – Cleaning: ASTM A380 – Earthquake loading: EUROCODE 8 20/10/2011Thermosyphon cooling workshop §54

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 /10/2011Thermosyphon cooling workshop §55

Design proposal from D.A.T.E. 20/10/2011Thermosyphon cooling workshop §56 DESUPERHEATING and CONDENSATION ZONESUBCOOLING ZONE HEAT TRANSFER COEFFICIENT 299,65 W.m. -2 °C ,8 W.m. -2 °C -1 HEAT TRANSFERT SURFACE 86,85 m 2 9,07 m 2 PRESSURE DROP 6 mbar10 mbar NUMBER OF TUBES 240 tubes28 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)

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 20/10/2011Thermosyphon cooling workshop §57

Any questions? 20/10/2011Thermosyphon cooling workshop §58