Steady State and Transient Thermal Analysis of the Updated Helium-Cooled Solid Breeder Blanket for CFETR

This paper presents the results of the steady state and transient thermal analysis of the updated helium-cooled solid breeder blanket for the Chinese fusion engineering test reactor (CFETR). The updated design of the helium-cooled solid breeder blanket for the CFETR has been described. The commercial finite element method code ANSYS 15.0 is used for the thermal analysis in this paper. The steady state thermal analysis of the updated blanket has been performed, showing that the temperatures of different materials of the blanket module are below the corresponding temperature limits. The 3-D transient thermal analysis of the updated helium-cooled solid breeder blanket for the CFETR under normal pulsed operation has been conducted. The temperature of different components during flattop burning time calculated by transient thermal analysis matches well with that of steady state thermal analysis. Furthermore, the transient thermal behavior of the blanket under the in-box loss of coolant accidents condition are also described and critically discussed.