Analysis of the Initiating Event of TOPAZ-II Space Nuclear Reactor Power System

Yang Jialin; Ding Hongchun; He Fang; Zhang Haochun; Zhao Yulan

doi:10.13832/j.jnpe.2024.06.0192

Volume 45 Issue 6

Dec. 2024

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Yang Jialin, Ding Hongchun, He Fang, Zhang Haochun, Zhao Yulan. Analysis of the Initiating Event of TOPAZ-II Space Nuclear Reactor Power System[J]. Nuclear Power Engineering, 2024, 45(6): 192-196. doi: 10.13832/j.jnpe.2024.06.0192

Citation:

Yang Jialin, Ding Hongchun, He Fang, Zhang Haochun, Zhao Yulan. Analysis of the Initiating Event of TOPAZ-II Space Nuclear Reactor Power System[J]. Nuclear Power Engineering, 2024, 45(6): 192-196. doi: 10.13832/j.jnpe.2024.06.0192

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Analysis of the Initiating Event of TOPAZ-II Space Nuclear Reactor Power System

doi: 10.13832/j.jnpe.2024.06.0192

1.
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
2.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2023-12-25
Rev Recd Date: 2024-04-25
Publish Date: 2024-12-17

Abstract

Abstract

To comprehensively evaluate the safety of space nuclear reactors and provide technical support for their design and operation, based on probabilistic safety assessment (PSA) method, this study takes TOPAZ-Ⅱ space nuclear reactor power system as the research object, and a study on its initiating events (IEs) is carried out. A list of 15 IEs covering all mission phases of the TOPAZ-Ⅱ is obtained through two means: operational experience feedback and Failure Mode and Effects Analysis (FMEA). These IEs are further classified into 6 groups according to their system response process. Research has shown that due to the uniqueness of design features, operating environment, and mission phases, there are significant differences in the IE of space nuclear reactor power system compared to ground nuclear power facilities. The IE list and its grouping method determined for TOPAZ-Ⅱspace nuclear reactor power system in this study have laid the preliminary research foundation for the PSA of space nuclear reactors.
- Space nuclear reactor,
- TOPAZ-Ⅱ,
- Probabilistic safety assessment (PSA),
- Initiating event (IE) analysis,
- Failure mode and effects analysis (FMEA)

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References(23)

References

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