Conceptual Design Technology Research of CFETR Fusion Power Plant

Abstract

[Introduction] Based on the power output characteristics of China Fusion Engineering Experimental Reactor(CFETR) and under the condition of the maximum thermal power 1.25 GW, this paper aims to provide a conceptual design scheme of CFETR fusion power plant. [Method] To resolve the confliction between the periodic long pulse output characteristics of CFETR fusion reactor and the continuous stable input requirements of conventional island equipment, the energy storage technology scheme was adopted to realize the safe and stable operation of CFETR fusion power generation in the way of “peak cutting and valley filling” .We discussed energy storage under two different cladding schemes of CFETR fusion water cooling and helium cooling, as well as the combination scheme of coupling and decoupling operation modes between primary and secondary circuits. Through scheme comparison, the optimal energy storage operation combination corresponding to different cladding of CFETR fusion reactor was given. [Result] The results show that the best combination scheme of water-cooled cladding and helium cooled cladding fusion reactor is heat transfer oil + decoupled heat storage scheme and molten salt + coupled heat storage scheme. [Conclusion] From the conventional island side, compared with the water-cooled cladding scheme, the technical economy of CFETR fusion power plant with the helium cooled cladding scheme is better. The conceptual design scheme of CFETR fusion power plant has high reference value for the subsequent fusion power generation technology research and engineering design.

Keywords

• cfetr
• conceptual design
• fusion
• tokamak
• power plant
• energy storage