PROCESS DESIGN OF THE FORCED-FLOW COOLED FOR CFETR CS MODEL COIL

Superconducting magnet of Central Solenoid (CS) model coil of China Fusion Engineering Test Reactor (CFETR) is made of Nb3Sn/ NbTi cable-in-conduit conductor (CICC), and operated by forced-flow cooling with a large amount of supercritical helium. The cryogenic circulation pump can be effectively to achieve the supercritical helium (SHe) circulation to the forced-flow cooled (FFC) cable-in-conduit conductor (CICC) magnet. A distribution system will be constructed for cooling the CFETR CS model coil. This paper presents the design of FFC process for the CFETR CS model coil