水冷陶瓷增殖剂包层氚输运分析

Tritium transport analysis for water cooled ceramic breeder blanket

基于2015版本中国聚变工程实验堆(CFETR)水冷陶瓷增殖剂(WCCB)包层模块设计特点,建立详细的氚输运分析模型,对不同包层模块(包括不同的增殖区)、载氚气回路、冷却剂回路和蒸汽发生器中的氚输运进行分析。结果表明不同包层模块氚的浓度、渗透量、滞留量均不同,全堆所有包层模块增殖区中氚的滞留量为6.62×10-2g,结构材料中氚滞留量为2.01g,载氚气和冷却剂回路中氚滞留量分别为4.03×10-4g和0.19g,氚通过蒸汽发生器的渗透量为20mg·y-1,冷却剂回路中氚渗透到管道外的量为0.1mg·y-1。

Based on the design of the 2015 version of China Fusion Engineering Test Reactor(CFETR)water cooled ceramic breeder(WCCB)blanket modules surrounding the plasma,a tritium transport model has been developed.Tritium transport analysis has been carried out for each blanket module with different breeding zones,purge gas loop,coolant loop and steam generator.The results indicate that the concentration,permeability and retention of tritium among blanket modules are different.For all of the WCCB blanket modules in CFETR,the tritium retention inside the breeder is 6.62×10-2g,the tritium retention inside the structural materials is 2.01 g,the tritium retention inside purge gas and coolant loop are 4.03×10-4g and 0.19 g respectively,the tritium permeation through the steam generator tube walls is 20 mg·y-1,the tritium permeation from the coolant pipes is 0.1 mg·y-1.