摘要
导出了反应堆处于非平衡状态条件下的反应性阶跃变化时,反应堆从深度次临界到瞬发超临界整个区间通用的中子增殖统一的计算公式。通过对单组模型的修正,该公式还可以用于计算六组缓发中子的点堆中子动力学方程组。计算结果表明:利用修正后的单组解析方法计算阶跃反应性输入的中子密度响应问题,其计算结果与六组缓发中子的点堆中子动力学方程接近,精度满足工程计算要求。
A general neutron breeder formula is developed when the reactor does not reach the steady state and the reactivity changes in phase. This formula can be used to calculate the results of six groups delayed neutron model through a way of amending 2, in one group delayed neutron model. The analysis shows that the solution of amended single group delayed neutron model is approximately equal to that of six-group delayed neutron model, and the amended model meets the engineering accuracy.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2008年第6期10-13,29,共5页
Nuclear Power Engineering
基金
国家自然科学基金资助项目(10575131)
关键词
中子动力学
中子增殖
缓发中子
反应性
单群
Neutron kinetics, Neutron breeder, Delayed neutron, Reactivity, One group
