Abstract:

Numerical simulation code package SWITRIM has been developed to calculate the tritium inventory distribution and its time evolution in all subsystems of FEB reactor. The applications in recent 5 years indicate that it is reasonable and reliable. The new phenomenon of “tritium well depth and tritium well time” during the fusion reactor start-up phase is studied using the SWITRIM code package. The combination of the SWITRIM code package, user’s guide and the latest example are briefly introduced.

Key words: Development of SWITRIM code, Tritium inventory, Tritium well depth and tritium well time, Tritium break-even

摘要：

研制出了用于计算氚投料量在FEB聚变堆各个子系统中的分布及其随时间变化的数值模拟程序包SWITRIM。通过近5年的使用，表明其运行良好、计算结果可靠。用SWITRIM数值模拟研究了聚变堆起动过程中的“氚坑深度和氚坑时间”新现象。简单介绍了SWITRIM程序包的组成和用户使用说明以及最新的运用等。

关键词: SWITRIM程序研制, 氚投料量, 氚坑深度和氚坑时间, 氚得失相当