Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear Reactor

Initiating event analysis is an essential prerequisite of conducting probabilistic safety assessment for nuclear reactors, which plays an important role in improving the core design, identifying fault, and guiding operation. In order to determine the initiating event list of SIMONS (Small Innovative...

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Main Authors: Jun Zhou, Jianhui Wu, Yong Cui, Hongkai Zhao, Chunyan Zou, Jingen Chen
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/19/6769
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author Jun Zhou
Jianhui Wu
Yong Cui
Hongkai Zhao
Chunyan Zou
Jingen Chen
author_facet Jun Zhou
Jianhui Wu
Yong Cui
Hongkai Zhao
Chunyan Zou
Jingen Chen
author_sort Jun Zhou
collection DOAJ
description Initiating event analysis is an essential prerequisite of conducting probabilistic safety assessment for nuclear reactors, which plays an important role in improving the core design, identifying fault, and guiding operation. In order to determine the initiating event list of SIMONS (Small Innovative helium-xenon cooled Mobile Nuclear power System), preliminary researches on the initial event of SIMONS were carried out using the MLD (Main Logic Diagram) analysis method and referring to the initial event list and initial event analysis theory of other nuclear reactors such as HTGR (High Temperature Gas-cooled Reactor), MSR (Molten Salt Reactor), and PWR (Pressurized water reactor). With employing these methods, a total of 31 initial events are identified for SIMONS based on its latest conceptual design. These initial events are then divided into six groups according to the accident types, which are core heat removal increase, core heat removal decrease, abnormal reactivity and power distribution, pipeline crevasse and equipment leakage, anticipated transients without scram, and disasters (internal and external). The obtained results can provide a theoretical basis for the further safety analysis of SIMONS.
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spelling doaj.art-77f4b041b7384f268d09d15d5fc769202023-11-19T14:18:37ZengMDPI AGEnergies1996-10732023-09-011619676910.3390/en16196769Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear ReactorJun Zhou0Jianhui Wu1Yong Cui2Hongkai Zhao3Chunyan Zou4Jingen Chen5Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaInitiating event analysis is an essential prerequisite of conducting probabilistic safety assessment for nuclear reactors, which plays an important role in improving the core design, identifying fault, and guiding operation. In order to determine the initiating event list of SIMONS (Small Innovative helium-xenon cooled Mobile Nuclear power System), preliminary researches on the initial event of SIMONS were carried out using the MLD (Main Logic Diagram) analysis method and referring to the initial event list and initial event analysis theory of other nuclear reactors such as HTGR (High Temperature Gas-cooled Reactor), MSR (Molten Salt Reactor), and PWR (Pressurized water reactor). With employing these methods, a total of 31 initial events are identified for SIMONS based on its latest conceptual design. These initial events are then divided into six groups according to the accident types, which are core heat removal increase, core heat removal decrease, abnormal reactivity and power distribution, pipeline crevasse and equipment leakage, anticipated transients without scram, and disasters (internal and external). The obtained results can provide a theoretical basis for the further safety analysis of SIMONS.https://www.mdpi.com/1996-1073/16/19/6769helium-xenon gas cooled nuclear reactorprobabilistic safety assessmentinitiating event
spellingShingle Jun Zhou
Jianhui Wu
Yong Cui
Hongkai Zhao
Chunyan Zou
Jingen Chen
Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear Reactor
Energies
helium-xenon gas cooled nuclear reactor
probabilistic safety assessment
initiating event
title Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear Reactor
title_full Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear Reactor
title_fullStr Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear Reactor
title_full_unstemmed Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear Reactor
title_short Research on Initiating Events Analysis of Small Helium-Xenon Gas Cooled Nuclear Reactor
title_sort research on initiating events analysis of small helium xenon gas cooled nuclear reactor
topic helium-xenon gas cooled nuclear reactor
probabilistic safety assessment
initiating event
url https://www.mdpi.com/1996-1073/16/19/6769
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