Cooling and Ventilation Studies for the CLIC

The CLiC is composed of a large-scale complex requiring cooling and ventilation infrastructures in surface buildings and in underground tunnels. A conceptual design of these systems has been done throughout 2018 for the 380 GeV accelerator. Two different versions with distinct beam accelerating systems were considered. The total cooling required is approximately 160 MW for the drive beam-based machine and 140 MW for the klystron-based machine. The cost of the cooling and ventilation infrastructure is estimated to be approximately 468 MCHF and 419 MCHF respectively.