27th IEEE Symposium on Fusion Engineering

Conceptual design of the cryogenic system for CFETR

5 Jun 2017, 13:40

2h

Junior Ballroom

Board: 65

Poster Next step devices, DEMO, power plants M.POS: Poster Session M

Speaker

Mr Xiaogang Liu (Institute of Plasma Physics Chinese Academy of Sciences)

Description

China is planning to construct the China Fusion Engineering Test Reactor (CFETR), in order to bridge the gap between ITER and the Prototype Fusion Power Plant. The cryogenic system of CFETR is indispensable to provide cooling for the superconducting magnet system and cold structures at 4.2 K, the cryopumps at 3.7 K, the HTS current lead at 50 K, and the thermal shields at 80 K. In this paper, the magnet system of CFETR is introduced and the cold mass is estimated. The cryogenic system heat load is extrapolated from that of ITER. The required refrigeration capacity of the cryogenic system is evaluated, taking into account the dimension of CFETR and especially the large burn duty cycle of 50%. The conceptual design of the CFETR cryogenic system is introduced.