CFETR氦冷固态包层及其辅助系统动态氚输运分析

实现氚自持、建立完整的氚循环系统并保证氚安全是中国聚变工程实验堆(CFETR)的主要目标之一。在CFETR氦冷固态包层及其辅助系统设计过程中，需对系统级氚输运行为进行详细分析，包括氚滞留量、释放量、浓度的动态变化等。基于已建立的动态氚分析程序TriSim-Dynamic，在此基础上进行修改完善，利用该程序对CFETR氦冷固态包层及其辅助系统氚动态输运进行分析模拟，得到了冷却剂及提氚吹扫气中氚浓度、氚分压，管壁及结构材料中氚盘存量，氚通过包层结构材料和辅助系统管壁向真空室、水冷系统及建筑的渗透通量动态变化，并将其稳态值与已进行基准校核的稳态氚分析程序TriSim-SA及理论解析解进行比较，以初步验证分析结果的准确性，数据结果也对CFETR氚安全分析提供了一定的参考。

Tritium Dynamic Transport Analysis for CFETR Helium Cooled Ceramic Breeder Blanket and Auxiliary System

To promise tritium self-sufficiency and ensure tritium safety is one of the main objectives of CFETR. The tritium behavior in system should be analyzed in detail, including dynamic changes of tritium retention, tritium release, and tritium concentrations, for the design of CFETR helium cooled ceramic breeder blanket and its auxiliary system. In this work, an integrated dynamic tritium transport analysis tool TriSim-Dynamic is used to analyze the tritium dynamic transport in CFETR helium cooled ceramic breeder blanket and its auxiliary system. The results, including the tritium concentration and partial pressure in coolant and purge gas, the tritium inventory in the wall of pipes and structural materials, the dynamics of tritium flux for permeating into vacuum vessel, water-cooling systems and buildings by way of the structure materials or the walls of pipes in auxiliary system. The steady state results are compared with the steady tritium analysis tool TriSim-SA to verify the analysis results. The results can be a reference data for tritium safety analysis in CFETR.