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

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

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

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

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. 7-8 1.9 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

Detector Cooling Systems Inner Tracker C6F14 5.5 kW @ -15°C Trigger Tracker C6F14 5.5 kW @ -15°C Rich 1&2 C6F14 14 kW @ -10°C Outer Tracker Water – leakless 23 kW @ -19°C

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.

Differential pressure measurements in 2010

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

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.

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

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…

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…

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.

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