FEB-E氚循环系统的计算机模拟  

COMPUTER SIMULATION OF THE FEB E TRITIUM CYCLE SYSTEM

作　　者：邓柏权[1] 黄锦华[1] 谢中友[1] 

机构地区：[1]核工业西南物理研究院

出　　处：《核聚变与等离子体物理》1998年第4期8-14,共7页Nuclear Fusion and Plasma Physics

摘　　要：对聚变实验增殖堆（ＦＥＢ）工程概要设计的氚燃料循环构造了一个动态子系统模型，研制了模拟氚燃料循环系统的计算机程序ＳＷＩＴＲＩＭ，计算了运行一年后１０个子系统中的氚投料量和整个堆系统总的氚投料量。这对预示起动一个聚变热功率为１５０ＭＷ量级的实验增殖堆所需要的最少初始氚投料量有参考价值。计算结果表明，要求的最少初始氚贮备量除了与燃料气体净化系统和同位素分离系统中氚的平均逗留时间有关外，还与包层液态锂中提取氚的周期有关，特别是液态锂中可提取的最低氚浓度有关。另外，等离子体中的氚在第一壁、孔栏和偏滤器材料中的滞留量，在中子倍增材料Ｂｅ球中产生的氚和植入的氚也将影响要求的最少氚贮备量。Based on the fusion experimental breeder FEB E engineering outline design, a dynamic subsystem model is constructed for tritium fuel cycle system. A computer simulation code, SWITRIM, has been developed to simulate the tritium fuel cycle system. The tritium inventories in 10 subsystems are calculated during one year operation period. This code is utilized to predict the required minimum initial tritium storage to start up an experimental breeder of 150 MW fusion thermal power. Calculation results show that the required minimum initial tritium storage strongly depends on the mean residence time in the subsystems of plasma exhausted gas, FCU and ISS; besides ,the minimum initial tritium inventory also depends on the tritium permeability in the first wall, limiter, divertor, blanket and tritium production in the beryllium neutron multiplier.

关 键 词：FEB-E 氚循环系统 氚投料量 聚变实验增殖堆 

分 类 号：TL642[核科学技术—核技术及应用]