乏燃料贮存燃耗信任制计算的敏感元素分析

摘要

To analyze the burnup credit , it is necessary to calculate the reactive systems of spent fuel .Besides , in order to ensure the nuclear critical safety , it is also necessary to ensure the envelope sex of the results ana-lyzed, requiring taking into account the effect of results caused by a variety of fuel consumption factors .Emplo-ying STARBUCS module of the SCALE program package , the writer has reached beneficial conclusions by ana-lyzing the sensitivities of the nuclear critical safety of spent fuel storage system as a result of factors , such as dif-ferent trust scales and core operating parameters by means of verifying Phase -IA and Phase-IIA benchmark problems released by OECD /NEA.%燃耗信任制的应用分析需要计算乏燃料系统的反应性，为了保证临界安全需要保证分析结果的包络性，为此需要考虑到各种不同燃耗因素对于分析结果的影响。采用SCALE程序包中的STAR-BUCS模块，通过对OECD ／NEA发布的Phase－IA及Phase－IIA基准题的验证分析，研究了不同信任等级、堆芯运行参数等因子对乏燃料贮存系统临界安全的敏感性分析，并得出有益的结论。