Research on Rod Withdrawal Accident Analysis Method Based on RELAP5/MOD3 Variable Power Distribution

Zhang Yong; Li Songwei; Wang Wei

doi:10.13832/j.jnpe.2018.02.0101

Volume 39 Issue 2

Feb. 2025

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Zhang Yong, Li Songwei, Wang Wei. Research on Rod Withdrawal Accident Analysis Method Based on RELAP5/MOD3 Variable Power Distribution[J]. Nuclear Power Engineering, 2018, 39(2): 101-103. doi: 10.13832/j.jnpe.2018.02.0101

Citation:

Zhang Yong, Li Songwei, Wang Wei. Research on Rod Withdrawal Accident Analysis Method Based on RELAP5/MOD3 Variable Power Distribution[J]. Nuclear Power Engineering, 2018, 39(2): 101-103. doi: 10.13832/j.jnpe.2018.02.0101

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Research on Rod Withdrawal Accident Analysis Method Based on RELAP5/MOD3 Variable Power Distribution

doi: 10.13832/j.jnpe.2018.02.0101

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2017-11-29
Rev Recd Date: 2017-12-28

Available Online: 2025-02-09

Abstract

Abstract

In this paper,we use the rod-power distribution obtained by the nuclear design and the 202 tables and 205 cards of RELAP5/MOD3 to realize the change of the relative power share of each axial node in the heat of the RELAP5/MOD3.The "variable power distribution" analysis method is successfully realized in RELAP5/MOD3,and the method is used to analyze the rod withdrawal accident of a reactor.The maximum fuel temperature obtained by this method is significantly lower than the fixed power distribution method.
- RELAP5/MOD3,
- Variable power distribution,
- Rod withdrawal accident