原子能科学技术2017，Vol.51Issue(8)：1442-1446,5.DOI:10.7538/yzk.2017.51.08.1442
田湾核电站乏燃料干式贮存临界安全计算研究
Calculation Study of Criticality Safety for Tianwan Nuclear Power Plant Spent Fuel Dry Storage
吕牛 1夏兆东 1朱庆福1
作者信息
- 1. 中国原子能科学研究院 反应堆工程技术研究部,北京 102413
- 折叠
摘要
Abstract
Exampled by the dry storage container CASTOR 1000/19 loading Tianwan Nuclear Power Plant hexagonal spent fuel assembly,the criticality safety of dry storage of hexagonal spent fuel assembly was studied.Based on fresh fuel assumption,the keff of the CASTOR 1000/19 loading hexagonal spent fuel assembly fully was calculated at different conditions by using the MONK9A code.The results show that keff is far less than the critical safety limit under normal condition,i.e.it is safe.When the 235U enrichment is greater than 3.15％,the system has critical safety risk at accident conditions.And the loading capacity had to be reduced to ensure the criticality safety.Considering burnup credit(BUC),a reference loading curve was proposed based on the same calculation model,which could ensure criticality safety.The availability of the storage container increases by adopting BUC.The achievements could be reference for spent fuel dry storage scheme in Tianwan Nuclear Power Plant.关键词
乏燃料/干式贮存/临界安全/燃耗信任制Key words
spent fuel/dry storage/criticality safety/burnup credit分类
能源科技引用本文复制引用
吕牛,夏兆东,朱庆福..田湾核电站乏燃料干式贮存临界安全计算研究[J].原子能科学技术,2017,51(8):1442-1446,5.
