田湾核电站乏燃料水池采用燃耗信任制的计算研究

Calculation Study of TNPS Spent Fuel Pool Using Burnup Credit

1.
China Institute of Atomic Energy, P. O. Box 275-45, Beijing 102413, China
2.
Nuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing 100082, China

摘要: 以田湾核电站(TNPS)2×5排列的贮存格架构成的乏燃料水池为例，研究采用燃耗信任制技术的密集贮存和临界安全问题。采用MONK9A程序计算分析不同富集度、不同燃耗的乏燃料装载情况下系统的k_eff.根据系统k_eff随不同初始富集度燃料的燃耗变化情况给出了水池的参考装载曲线。采用燃耗信任制技术的密集贮存方案能提高贮存能力31%。
- 燃耗信任制 ,
- 乏燃料水池 ,
- 临界安全 ,
- 装载曲线
Abstract: Exampled by the spent fuel pool of TNPS which is consist of 2×5 fuel storage racks, the spent fuel high-density storage based on burnup credit (BUC) and related criticality safety issues were studied. The MONK9A code was used to analyze k_effof different enrichment fuels at different burnups. A reference loading curve was proposed in accordance with the system k_eff’s changing with the burnup of different initially enriched nuclear fuels. The capacity of the spent fuel pool increases by 31% compared with the one that does not consider BUC.
- burnup credit ,
- spent fuel pool ,
- criticality safety ,
- loading curve

[1]	李友谊，杨晓强. 田湾核电站堆芯燃料管理简介[C]∥第十三届反应堆数值计算与粒子输运学术会议. 西安：反应堆物理数值计算与粒子输运专业委员会，2010.
[2]	ANSWERS Software Service. MONK9A user guide for version 9, MONK/REPORT/005[R]. Dorset: ANSWERS Software Service, 2001.
[3]	WAGNER J C, DEHART M D. Review of axial burnup distribution considerations for burnup credit calculations, ORNL/TM-1999/246[R]. US: ORNL, 2000.