An Instantaneous Method for Reactors Risk Calculation Applies to Level Three Probabilistic Safety Assessment

Cheng Jie; Tang Xiuhuan; Chen Shanqi; Wang Jin; Li Yazhou; Li Jie; Wang Fang; Jiang Jieqiong

doi:10.13832/j.jnpe.2023.01.0124

Volume 44 Issue 1

Feb. 2023

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Article Navigation > Nuclear Power Engineering > 2023 > 44(1): 124-128

Cheng Jie, Tang Xiuhuan, Chen Shanqi, Wang Jin, Li Yazhou, Li Jie, Wang Fang, Jiang Jieqiong. An Instantaneous Method for Reactors Risk Calculation Applies to Level Three Probabilistic Safety Assessment[J]. Nuclear Power Engineering, 2023, 44(1): 124-128. doi: 10.13832/j.jnpe.2023.01.0124

Citation:

Cheng Jie, Tang Xiuhuan, Chen Shanqi, Wang Jin, Li Yazhou, Li Jie, Wang Fang, Jiang Jieqiong. An Instantaneous Method for Reactors Risk Calculation Applies to Level Three Probabilistic Safety Assessment[J]. Nuclear Power Engineering, 2023, 44(1): 124-128. doi: 10.13832/j.jnpe.2023.01.0124

Citation:

Cheng Jie, Tang Xiuhuan, Chen Shanqi, Wang Jin, Li Yazhou, Li Jie, Wang Fang, Jiang Jieqiong. An Instantaneous Method for Reactors Risk Calculation Applies to Level Three Probabilistic Safety Assessment[J]. Nuclear Power Engineering, 2023, 44(1): 124-128. doi: 10.13832/j.jnpe.2023.01.0124

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An Instantaneous Method for Reactors Risk Calculation Applies to Level Three Probabilistic Safety Assessment

doi: 10.13832/j.jnpe.2023.01.0124

Cheng Jie^{1, 2
,},
Tang Xiuhuan³,
Chen Shanqi^{4
,
,},
Wang Jin^{4, 5},
Li Yazhou⁴,
Li Jie⁴,
Wang Fang⁴,
Jiang Jieqiong¹

1.
Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
2.
University of Science and Technology of China, Hefei, 230027, China
3.
Northwest Institute of Nuclear Technology, Xi’an, 710024, China
4.
International Academy of Neutron Science, Qingdao, Shandong, 266199, China
5.
China Three Gorges University, Yichang, Hubei, 443002, China

Received Date: 2022-02-17
Rev Recd Date: 2022-06-12
Publish Date: 2023-02-15

Abstract

Abstract

Risk monitor is a very important technical basis for nuclear reactor safety supervision and nuclear emergency decision-making. Conventional risk monitors only support the core meltdown risk calculation based on the level-1 probabilistic safety assessment. Focusing on the real-time risk monitoring of reactor based on the level-3 probabilistic safety assessment, an improved method is proposed in this paper for risk calculation. For the actual configuration of reactor operation, the accidents frequencies are calculated based on real-time risk model and on-line condition monitoring, and supports the real-time calculation of released source term and off-site dose by accident categorization and dose factors. The case study of reactor risk model shows the effectiveness and provides instantaneous calculation for core damage frequency, large release frequency and off-site risk. The proposed method can provide technical support for nuclear reactor safety regulation and nuclear emergency.
- Nuclear reactor,
- Risk monitoring,
- Probabilistic safety assessment,
- Safety regulation,
- Nuclear emergency

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References(16)

References

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