1. Cryogenics Introduction for building requirements SHM-SLN-SHE S. Claudet, TE-CRG Kick-off meeting Civil Engineering Consultants 31st May 2016

2. Superconductors and Cryogenic fluids Low Temperature superconductors High Temperature superconductors LHC Superconductors: high performance and “compact” accelerators, but cryogenic cooling required HL-LHC

3. Temperature scale and cooling principle 0 C 100 C 273.15 K 0 K-273.15 C 373.15 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

4. SHE: Slabs for Helium storage tanks Gaseous helium 2 x 250 m3 Maxi 850 kg inside !!! There are existing SHE’s around

5. SHM: Warm Compressor Station MotorsOil/Helium CoolersCompressors 5MW input power 100-120t on the floor 105 - 110 dB(A) Synthetic Oil There are existing SHM’s around

6. SL Surface galleries Various configuration of pipes and cable ladders There are existing SL’s …

7. Diameter: 4m - Length:15m Height up to 8m 100 tons Air Liquide Linde SD with Helium Cold Box There are existing SD’s …

8. SLN Slab for Liquid Nitrogen tanks There are existing SLN’s …