非平衡态的中子增殖统一公式

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基金项目:

国家自然科学基金资助项目(10575131)

A General Formula Considering one Group Delayed Neutron under Nonequilibrium Condition

1. Department of Nuclear Energy Science and Engineering, Naval University of Engineering, Wuhan, 430033, China;
2. Navy Institute for Nuclear and Chemistry Protection, Beijing, 100077, China

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。
- 中子动力学 /
- 中子增殖 /
- 缓发中子 /
- 反应性 /
- 单群
Abstract: 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 de-layed neutron model through a way of amending λ 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.
- Neutron kinetics /
- Neutron breeder /
- Delayed neutron /
- Reactivity /
- One group