Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov.2004 1 P. Bonneau TS/CV/Detector Cooling CONTENTS Overall statusOverall status Cooling plant.

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Presentation transcript:

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling CONTENTS Overall statusOverall status Cooling plant in USA15Cooling plant in USA15 Control unit in USA15Control unit in USA15 Distribution racks in UX15Distribution racks in UX15 ServicesServices Detector loopDetector loop ScheduleSchedule

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling System design is almost completeSystem design is almost complete R&D is finished and main components are qualifiedR&D is finished and main components are qualified On detector loop manufacture is almost completedOn detector loop manufacture is almost completed Manufacturing of the distribution racks is ongoingManufacturing of the distribution racks is ongoing Orders of main components of the cooling plant are ready to be placedOrders of main components of the cooling plant are ready to be placed Some drawings to be approved for installationSome drawings to be approved for installation Commissioning and testing procedures to be worked outCommissioning and testing procedures to be worked out Overall status

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling System design

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Cooling plant in USA15 Booster Compressors Condenser Compressor On UPS Storage tank Pumps on liquid Liquid manifold Vapor manifold Drawing LHCF

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Compressors HAUG –Compressors HAUG – (IT-2884/EP/ATL) - We are late due to delay in SR1 plant – Should placed the order for 2 nd compressor at the beginning of Booster –Booster – 73 suppliers contacted in the last 2 years. Only 2 positive offers (128 and 271 kCHF) far too expensive. Pump on liquid –Pump on liquid – After bad experience with selected supplier we start new survey. Already 5 offers in hand Storage tank –Storage tank – Suppliers identified. We have to finalize the design before sending the order. Condenser –Condenser – Order ready to be placed Valves –Valves – Call for tender in the purchasing office Piping –Piping – We are ready to send out a call for tender Concrete basement –Concrete basement – Drawing to extract – Contact TS/CE Cooling plant in USA15

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Control unit in USA15 PLC and Electr. –PLC and Electr. – Review of the last design done. 4 PLCs needed instead of 3. Nothing bought Pneumatic –Pneumatic – Order for E->P converters placed – 2/3 pneumatic valves selected. Installation drawing to be done. Compressor for 16b air –Compressor for 16b air – To be found Vacuum –Vacuum – System to be designed

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Distribution racks in UX15

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Racks – Frame and piping –Racks – Frame and piping – Construction on-going Specifications in Order DR-01631/TS/ATLAS Regulators TESCOM –Regulators TESCOM – 20% purchased – Waiting for this first batch to control the specs. Specifications in RadHard pressure transmitter –RadHard pressure transmitter – Order placed through Cern Stores (for all ATLAS systems) Specifications in Valves –Valves – Call for tender in the purchasing office Pressure test –Pressure test – All fittings ready – Need to clarify where it will be done. Inlet and outlet channels –Inlet and outlet channels – Manifolds to be designed and manufactured Distribution racks in UX15

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Services Piping in USA15 Design completed Ready for call for tender Drawing LHCF

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Services Drawing LHCF Piping in ULX16 Design completed Ready for call for tender

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Services Have to clarify who will do what for the installation of the services: ATLAS TC CollaborationATLAS TC Collaboration TS/CV Industrial contractTS/CV Industrial contract Piping in UX15 Design to be finalized and approved before going to tender

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Detector loop Design

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Detector loop Heaters Various prototypes tested Stable operation: –up to a power duty cycle of 95% –with simple On/Off control Temperatures of heating element OK (max around 60 °C), far from max limit Design mature and ready for final prototype pressure drops and occupancy of extrapolated final size OK

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Detector loop Heat exchanger Design is different for the three sub detectors due to different layout and geometrical constraints All countercurrent type Pixel: parallel type external. Al inlet and return tubes glued together over 1.5 m. Simple design, possible with small power load Barrel SCT: parallel type internal. Two inlet tubes are routed inside the return tube over a length of 1.5 m and parallel to the return tube axis EC SCT: inlet tube is coiled in spiral inside the return tube over less than 0.5 m.

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Detector loop Capillaries Flow is function of: Dp, length, ID, inlet liquid T (HEX efficiency) Flow very sensitive to ID change: need test every capillary during production trimming the length to get the right flow Hundreds of data taken, but extrapolation is not easy, so need to check almost every geometry/condition Final capillaries for EC SCT are available. 2 IDs: 0.68 – 0.76 mm (we ordered enough quantities of the bigger ID sufficient also for barrel SCT if it will turn out to be correct) A test setup is being built to trim the capillaries to length

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Schedule Schedule (extract from Marco Olcese talk – Oxford – 6 Nov.2004 Distribution racks on platforms to be installed by June 2005Distribution racks on platforms to be installed by June 2005 Heaters to be ready by September/October 2005Heaters to be ready by September/October 2005 System from PP_1 outwards to be ready (installed and commissioned) by beginning 2006System from PP_1 outwards to be ready (installed and commissioned) by beginning 2006 HEX installed with the detectors (except for pixel)HEX installed with the detectors (except for pixel)

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Last…

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Last…

Status of the ATLAS ID Evaporative cooling system JCOV 25 Nov P. Bonneau TS/CV/Detector Cooling Last…