1. EN-CV: P8 systems and Detector Cooling
Michele Battistin, Olivier Crespo, Gilles Morard, Alessandro Saputi EN-CV

2. Agenda Cooling installations Detector Cooling systems
Ventilation installations
Compressed Air
Sumps & raising
Future requirements?

3. Main cooling systems SU: CV chillers for SH-SHM: Cooling
chilled water 6°C
mixed water 12°C
SH-SHM: Cooling
of the cryo
compressors
SF: Cooling towers
for primary 25°C water production
UW demineralized water circuits

4. Main water circuits SH8 Cryo compressors cooling UW85
TI8 demi water cooling
LHCb magnet cooling
Sect. 8-1
cooling
Sect. 7-8 cooling
SU8
Cryo compressors cooling
Mixed water 12°C
LHCb
Chilled water 6°C
HVAC
Pt8

5. Cryo compressors cooling
Main water circuits
The power consumption values shall be considered as rough indication only
39 MW MW
18.2 MW SU
5.5 MW
24-34°C
SH8
Cryo
13.4 MW
24-34°C
UW85
TI8
3.5 MW
27-42°C
LHCb
5 MW
27-56°C
Sect. 8-1
2.2 MW
27-37°C
Sect MW
SU8
Cryo compressors cooling
Mixed
1.5 MW
13-18°C
Chilled
0.9 MW
6-12°C
HVAC
2.9 MW UW
12.6 MW
24-34°C
?? MW
3.5 MW
12 MW

6. Detector Cooling Systems
Inner Tracker
C6F14
5.5
Trigger Tracker
C6F14
5.5
Rich 1&2
C6F14 14
Outer Tracker
Water – leakless 23

7. Main ventilation control panel Pt8
It is a bit complex
It would merit a dedicated presentation
…it is out of the scope of this workshop.

8. Differential pressure measurements in 2010

9. Compressed air Total flow rate: 870 m3/h Dew point: -40°C
Service pressure: 7±1 bar
Maximum allowable pressure: 16 bar

10. Evacuation of clean and waste water
Clean water (infiltration)
1 sump + 3 pumps -> to the “Nant Gobé”
Waste water (industrial)
1 sump + 1 pump -> to waste circuit
Flow-rate:
About 70 m3/h from the lowers point of LHC
180 m3/h in total from point 8.

11. Upgrade requirements?
Which kind of information CV will need to start working on the new requirements of LHCb Experiments for the upgrade?

12. Upgrade requirements? Water Cooling
Cooling power required or water flow-rate (minimum, maximum)
Cooling inlet temperature at the client and acceptable DT
Maximum allowable pressure of the client circuit
Pressure drop DP on the client circuit
Water quality for demi water (μS/cm) + circuit material (Al – Cu)
Connection information
Redundancy
Power supply (standard, diesel, UPS)
Location…

13. Upgrade requirements? Compressed air
Number and position of the equipment to be supplied
Brief description of the equipment (and datasheet if possible)
Nominal diameter of the connection
Requested flow-rate
Maximum allowable pressure
Minimum requested pressure
Air quality in relation to ISO-8573
Simultaneity coefficient of all users
Location…

14. Upgrade requirements? Detector Cooling
The EN/CV/DC section is available to design, build, install, test, commissioning and operate new Detector dedicated cooling units according to resources that could be allocated to cope with the detectors upgrade phase;
Cooling power, fluid, temperature range, temperature stability, maximum allowable pressure, DP, DT, number of distribution lines, etc.;
A very close collaboration for the design of the on-detector and off- detector cooling system is recommended.

15. Thanks to all CV colleagues that provided information
Questions?
Thanks to all CV colleagues that provided information