Commissioning and performance of the cryogenic system of the new test facility for large superconducting devices at CERN

27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018

Derking, J.H.^1 ; Perin, A.^1 ; Dupont, T.^1 ; D'Hulster, B.^1 ; Iakovidis, K.^1 ; Stewart, L.^1 ; Barbe, T.^1 ; Pezzetti, M.^1

CERN, Technology Department, Cryogenics Group, Geneva

121123, Switzerland^1

关键词: Cryogenic system;    Distribution systems;    Helium refrigerators;    Liquid helium;    Test benches;    Transfer lines;    Valve box;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/502/1/012005/pdf
DOI  :  10.1088/1757-899X/502/1/012005

来源: IOP

【 摘 要 】

CERN has built a new test facility for large and heavy superconducting devices that will be first used for testing the Super-FRS magnets of the FAIR project being built at GSI in Germany. This paper reports on the commissioning results and performance of the cryogenic system. The cryogenic system includes a new compression station coupled to a refurbished 1.2 kW equivalent power at 4.5 K TCF200 helium refrigerator. The cryogenic system contains further a 5 m3 liquid helium dewar, two liquid nitrogen cool-down / warm-up units for precooling to 80 K and warming-up the devices after the tests, and a dedicated cryogenic distribution system consisting of multiple valve boxes and transfer lines to distribute helium to the three test benches.