Study on the influences of RPV deformation on CHF under IVR conditions
After the reactor core melt, the thermal impact of high temperature molten mixture to the lower head of reactor pressure vessel (RPV) will cause the shape change of cooling channel constituted by reactor pressure vessel outer surface and other supporting structures. This phenomenon may lead to local...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1087135/full |
| _version_ | 1828038458958938112 |
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| author | Shuang Wen Shuang Wen Xinli Gao Xinli Gao Rui Zhang Kebin Fan Bin Jia Bin Jia Jianping Jing Fudong Liu Fudong Liu Xinlu Tian Xinlu Tian Xinlu Tian |
| author_facet | Shuang Wen Shuang Wen Xinli Gao Xinli Gao Rui Zhang Kebin Fan Bin Jia Bin Jia Jianping Jing Fudong Liu Fudong Liu Xinlu Tian Xinlu Tian Xinlu Tian |
| author_sort | Shuang Wen |
| collection | DOAJ |
| description | After the reactor core melt, the thermal impact of high temperature molten mixture to the lower head of reactor pressure vessel (RPV) will cause the shape change of cooling channel constituted by reactor pressure vessel outer surface and other supporting structures. This phenomenon may lead to local heat transfer deterioration and then cause the failure of in-vessel retention (IVR). Therefore, it is necessary to study the reactor pressure vessel deformation under in-vessel retention conditions. This paper proposes a numerical method for the CHF of the outer wall of reactor pressure vessel using ANSYS and FLUENT. The geometry of coolant channel is modeled by ANSYS with the coupling of temperature and mechanical field analysis in ANSYS, and the critical heat flux (CHF) of reactor pressure vessel outer surface is further predicted by FLUENT. With the comparing between test data and calculation, the calculation methods are verified. The results show that the CHF will be decreased by the deformation of PRV caused by the core melt. |
| first_indexed | 2024-04-10T16:27:23Z |
| format | Article |
| id | doaj.art-db4602946939427a91f8f08fd2e58b14 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-10T16:27:23Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-db4602946939427a91f8f08fd2e58b142023-02-09T04:35:45ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-02-011110.3389/fenrg.2023.10871351087135Study on the influences of RPV deformation on CHF under IVR conditionsShuang Wen0Shuang Wen1Xinli Gao2Xinli Gao3Rui Zhang4Kebin Fan5Bin Jia6Bin Jia7Jianping Jing8Fudong Liu9Fudong Liu10Xinlu Tian11Xinlu Tian12Xinlu Tian13Nuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing, ChinaState Environmental Protection Key Laboratory of Nuclear and Radiation Safety Regulatory Simulation and Validation, Beijing, ChinaNuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing, ChinaState Environmental Protection Key Laboratory of Nuclear and Radiation Safety Regulatory Simulation and Validation, Beijing, ChinaCollege of Nuclear Science and Technology, Harbin Engineering University, Harbin, ChinaNuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing, ChinaNuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing, ChinaState Environmental Protection Key Laboratory of Nuclear and Radiation Safety Regulatory Simulation and Validation, Beijing, ChinaNuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing, ChinaNuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing, ChinaState Environmental Protection Key Laboratory of Nuclear and Radiation Safety Regulatory Simulation and Validation, Beijing, ChinaNuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing, ChinaState Environmental Protection Key Laboratory of Nuclear and Radiation Safety Regulatory Simulation and Validation, Beijing, ChinaCollege of Nuclear Science and Technology, Harbin Engineering University, Harbin, ChinaAfter the reactor core melt, the thermal impact of high temperature molten mixture to the lower head of reactor pressure vessel (RPV) will cause the shape change of cooling channel constituted by reactor pressure vessel outer surface and other supporting structures. This phenomenon may lead to local heat transfer deterioration and then cause the failure of in-vessel retention (IVR). Therefore, it is necessary to study the reactor pressure vessel deformation under in-vessel retention conditions. This paper proposes a numerical method for the CHF of the outer wall of reactor pressure vessel using ANSYS and FLUENT. The geometry of coolant channel is modeled by ANSYS with the coupling of temperature and mechanical field analysis in ANSYS, and the critical heat flux (CHF) of reactor pressure vessel outer surface is further predicted by FLUENT. With the comparing between test data and calculation, the calculation methods are verified. The results show that the CHF will be decreased by the deformation of PRV caused by the core melt.https://www.frontiersin.org/articles/10.3389/fenrg.2023.1087135/fullIVRCHFCFD analysisRPVcoolant channel |
| spellingShingle | Shuang Wen Shuang Wen Xinli Gao Xinli Gao Rui Zhang Kebin Fan Bin Jia Bin Jia Jianping Jing Fudong Liu Fudong Liu Xinlu Tian Xinlu Tian Xinlu Tian Study on the influences of RPV deformation on CHF under IVR conditions Frontiers in Energy Research IVR CHF CFD analysis RPV coolant channel |
| title | Study on the influences of RPV deformation on CHF under IVR conditions |
| title_full | Study on the influences of RPV deformation on CHF under IVR conditions |
| title_fullStr | Study on the influences of RPV deformation on CHF under IVR conditions |
| title_full_unstemmed | Study on the influences of RPV deformation on CHF under IVR conditions |
| title_short | Study on the influences of RPV deformation on CHF under IVR conditions |
| title_sort | study on the influences of rpv deformation on chf under ivr conditions |
| topic | IVR CHF CFD analysis RPV coolant channel |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1087135/full |
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