7 Dec 06 CMS Tracker cooling - status report 1

TS-CV-Detector Cooling

Tracker and Preshower detector Tracker and Preshower detector cooling plantcooling plantF545/TS/CMSF545/TS/CMS

Status reportStatus report

December the 7th 2006December the 7th 2006P. TropeaP. Tropea

7 Dec 06 CMS Tracker cooling - status report 2

TS-CV-Detector Cooling

General layout General layout

•3 cooling loops in cascade (chiller, brine, fluorocarbon)

•3 regulation systems for the distribution Temperature (H20 flow rate, brine flow rate, C6F14 heating up)

Chilled water+12°C

Chilled water+6°C

USC55 - CV zone

Tunnel~ 150 m

TT

TT

Detectorcooling unit

(C6F14)

Chiller group(R507 A)

Brine group

TT

UXC55 - 1st floor balconies

Brine circuit: Tyfoxit -50

• 1 heat exchanger with the chiller circuit

• 2 pumps (redundancy)• 7 heat exchanger in the

detector units

7 Dec 06 CMS Tracker cooling - status report 3

TS-CV-Detector Cooling

What is thereWhat is there• Chiller and brine circuits installed in USC55 in April 06

•Thermal Screen and Preshower cooling units installed in UXC55 in August 06•Silicon strip and Pixels units installed in UXC55 in November 06•Electrical and control rack in USC55 in October 06•Piping and cabling between caverns ready

7 Dec 06 CMS Tracker cooling - status report 4

TS-CV-Detector Cooling

What has to be done…What has to be done…

• Pneumatic pipe installation (CMS) – Jan 07• C6F14 cooling system connections – Dec 06• Chiller tests – Jan 07• C6F14 cooling plant tests – Feb/Mar 07• Piping btw cooling and Tracker (Tender)– Apr 07• Commissioning with Tk on – Jun 07• C6F14 recuperation system – Apr 07