Cooling and Ventilation Group

Our Values
Respect
Safety First
Teamwork
Commitment
Innovativeness & Passion


Our Installations
Cooling Towers (480 MW): 24
Chilled and Mixed Water Stations: 46
Chillers: 112
Water Circuits for Machines and Experiments: 281
HVAC: HVAC: ~1’450 units from under 5’000 to 120’000 m³/h each
Compressed Air: 14 production plants, 35 compressors
Water Consumption: ~1’500’000 m³/year
Our Users
CERN’s accelerator complex
Experimental areas
LHC experiments’ sub-detectors
Strategic technical installations such as the Computer Centre

Cooling and Ventilation Group
The Cooling & Ventilation group (CV) is responsible for the design, installation, commissioning, operation and maintenance of the cooling systems, pumping stations, air conditioning plants and fluid distribution systems for the whole of CERN’s accelerator complex, its experimental areas and some of the special cooling systems of the LHC experiments’ sub-detectors as well as for strategic technical installations such as the Computer Centre.
In order to fulfil its mandate, the group performs computational fluid dynamics (CFD) simulations, along with studies on fluid dynamics, heat transfer, ventilation, smoke behavior and the propagation of gases and radio nuclides. The results of these studies are used to optimize existing installations and design future installations.
Serge Deleval is the Group Leader of the EN-CV Group in charge of procurement and operation and maintenance of cooling, ventilation and air conditioning systems for the accelerators and experimental areas. EN-CV also operates the fluids distribution systems for the Laboratory (drinking water, compressed air, etc.)