原子能科学技术2013，Vol.47Issue(6)：926-932,7.DOI:10.7538/yzk.2013.47.06.0926
基于RELAP5的中国氦冷固态包层真空室外破口瞬态特性分析
Transient Characteristic Analyses of Ex-vessel Coolant Pipe Break for Chinese Helium-cooled Solid Breeder TBM Based on RELAP5 Code
摘要
Abstract
Chinese helium-cooled solid breeder (CH HCSB) test blanket module (TBM) with helium cooling system and secondary cooling water system was modeled and thermal-hydraulic behavior and safety performance of the system were assessed using the RELAP5/MOD3.4 code.According to the accident sequences of ITER accident analysis specification for TBM,the transient analysis of the design basis ex-vessel coolant pipe break accident was carried out.The influences of different break locations,leak areas and plasma shutdown processess on the first wall of TBM were compared.The results indicate that it is much more danger when the pipe break occurs at the downstream side of the helium circulator compared with that at upstream side.The results also show that the accident consequence is worse in case of smaller area break than that in case of larger area break.In case of much more severe accident that the ex-vessel break leads to the break of TBM the first wall,the results reveal that the decay heat can be removed to cool down TBM by natural circulation and radiation.The first wall melting can be avoided if the method to shutdown plasma within 3 seconds in case of ex-vessel break is adopted.关键词
氦冷固态包层/冷却系统/真空室外破口/RELAP5Key words
helium-cooled solid breeder/ cooling system/ ex-vessel coolant pipe break/RELAP5分类
能源科技引用本文复制引用
王杰,苏光辉,田文喜,秋穗正,向斌,张国书,冯开明..基于RELAP5的中国氦冷固态包层真空室外破口瞬态特性分析[J].原子能科学技术,2013,47(6):926-932,7.基金项目
ITER计划专项课题资助项目(2009GB108001) （2009GB108001）
