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首页> 外文会议>International conference on nuclear engineering >SENSITIVITY STUDIES ON THE INFLUENCE OF SHUTDOWN CONTROL ASSEMBLY BANKS ARRANGEMENT IN ROD CONTROL ASSEMBLY BANKS WITHDRAWAL FROM A SUBCRITICAL CONDITION
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SENSITIVITY STUDIES ON THE INFLUENCE OF SHUTDOWN CONTROL ASSEMBLY BANKS ARRANGEMENT IN ROD CONTROL ASSEMBLY BANKS WITHDRAWAL FROM A SUBCRITICAL CONDITION

机译：停运控制总装安排对亚临界状态抽出的支路控制总装敏感性的敏感性研究

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摘要

A rod cluster control assembly (RCCA) withdrawal from a subcritical condition (RWFS) will lead to an uncontrolled reactivity addition to the core resulting in a power excursion. Such a transient is a limiting case among the moderate frequency incidents in CPR1000 power plant. In this paper a sensitivity study on the arrangement of shutdown control assembly banks which may be have some differences between two power plants have been preformed. The calculation method and main hypothesis used are also briefly presented. The study shows that if all the shutdown assembly banks are located outside the core in hot shutdown state, the radial enthalpy rise factor (F_(△H)), the maximal reactivity insertion rate and maximal thermal power in RWFS accident is lower than the base case defined as the one with some shutdown banks in the core, while the trip reactivity insertion rate values introduced when trigger reactor trip is bigger than the base case.
机译：从次临界状态（RWFS）撤出的棒状组件控制组件（RCCA）将导致堆芯不受控制的反应性增加，从而导致功率偏移。在CPR1000发电厂的中等频率事件中，这种瞬变是一个极限情况。在本文中，已经对关闭控制总成库的布置进行了敏感性研究，这可能在两个电厂之间存在一些差异。还简要介绍了使用的计算方法和主要假设。研究表明，如果在热停机状态下所有停机组件组都位于堆芯外部，则RWFS事故中的径向焓升高因子（​​F_（△H）），最大反应插入率和最大火力均低于基准值。情况定义为在堆芯中有一些停机库的情况，而触发反应堆跳闸时的跳闸反应性插入率值大于基本情况。

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