Cryogenics Introduction for building requirements SHM-SLN-SHE S. Claudet, TE-CRG Kick-off meeting Civil Engineering Consultants 31st May 2016
Superconductors and Cryogenic fluids Low Temperature superconductors High Temperature superconductors LHC Superconductors: high performance and “compact” accelerators, but cryogenic cooling required HL-LHC
Temperature scale and cooling principle 0 C 100 C K 0 K C K Absolute zero Degrés Kelvin Degrés Celsius Liquid Helium: 4.5K (-269C) Liquid Nitrogen: 77K (-196C) Celsius degrees and scale based on water (ice-vapor) Compressors Expanders Heat exchangers Valves
SHE: Slabs for Helium storage tanks Gaseous helium 2 x 250 m3 Maxi 850 kg inside !!! There are existing SHE’s around
SHM: Warm Compressor Station MotorsOil/Helium CoolersCompressors 5MW input power t on the floor dB(A) Synthetic Oil There are existing SHM’s around
SL Surface galleries Various configuration of pipes and cable ladders There are existing SL’s …
Diameter: 4m - Length:15m Height up to 8m 100 tons Air Liquide Linde SD with Helium Cold Box There are existing SD’s …
SLN Slab for Liquid Nitrogen tanks There are existing SLN’s …