期刊论文

Analysis of Space Nuclear Power Reactor Reactivity Accident

中文

新型工业化

2095-6649

2017

7

5

39-46

10.19335/j.cnki.2095-6649.2017.05.007

15C1176:教育厅项目 2015KG53:衡阳市科技局项目

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空间反应堆具有寿命长、功率大、体积小等优点,可以满足太空探索的需要。本文以TOPAZ-Ⅱ空间反应堆为研究对象,建立堆芯中子点堆动力学模型、堆芯热工模型以及堆芯反应性模型,通过编程计算得到堆芯满功率稳态下慢化剂温度和燃料温度。采用全隐式向后差分法求解动态方程组,并以堆芯稳态计算为基础,计算TOPAZ-II空间反应堆堆芯控制鼓转角变化时堆芯功率、慢化剂平均温度、燃料平均温度及反应性。计算结果表明随转鼓的角度发生变化的值越大时,反应性的变化趋势、堆芯热功率产生的波动、慢化剂的平均温度减小的速度和燃料的平均温度减小趋势越大,但一段时间后都能维持在某一稳定值,表明堆芯具有较好...

The Space Nuclear Power Reactor has advantage of long life,high power and small volume etc.It is able to be satisfied with needs of exploring the space.TOPAZ-ⅡSpace Nuclear Power Reactor has been used as the subject to set core point reactor kinetic model,core thermal model and core reactivity model.By programming calculation,we had the temperature of fuel and moderator under the steady full power of core.A full-implicite backward differentiation formula was used to solve dynamic equations.Based on the calculation of core steady-state,the pape...