CFETR固态水冷包层增殖材料对TBR与核热沉积影响的初步分析

Preliminary Analysis of Breeder Materials Impact on TBR and Nuclear Heating for Water Cooling Solid Breeder Blanket of CFETR

中国聚变工程实验堆(CFETR)是正在设计的聚变反应堆。利用蒙特卡罗粒子输运模拟程序MCNP,针对初步设计的以正硅酸锂(Li4SiO4)和钛酸锂(Li2TiO3)为增殖材料的两种固态水冷包层中子学特性进行了计算和分析。通过对不同模型包层氚增殖比、中子壁负载和核热沉积的计算结果的对比分析可知,包层材料和其设计是影响包层中子学性能的主要因素之一。

China Fusion Engineering Testing Reactor （CFETR） is China＇s fusion reactor being designed. The three-dimensional Monte Carlo neutron-photon transport code MCNP was used in the neutronics performance calculations for water cooling solid breeder blanket （WCSB） of CFETR which use the Li4SiO4 and Li2TiO3 as it breeder material. By comparative analysis of the tritium breeder ratio, neutron wall loading and nuclear heat calculation results of the different models, the results show the main factors which influence the neutronics performance of blanket are the blanket breeder material and its design.