Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAP
BackgroundSevere accident is complex coupling processes involving multiple components, phases, and physical fields, and related research is a complex and challenging systematic engineering project. In recent years, relevant scientific research institutions have placed greater emphasis on the develop...
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Science Press
2024-12-01
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| Series: | He jishu |
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| Online Access: | http://www.hjs.sinap.ac.cn/zh/article/doi/10.11889/j.0253-3219.2024.hjs.47.120601/ |
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| author | GUO Chao WU Shihao ZHAO Chuanqi ZHANG Yapei WEI Chao WU Yingwei |
| author_facet | GUO Chao WU Shihao ZHAO Chuanqi ZHANG Yapei WEI Chao WU Yingwei |
| author_sort | GUO Chao |
| collection | DOAJ |
| description | BackgroundSevere accident is complex coupling processes involving multiple components, phases, and physical fields, and related research is a complex and challenging systematic engineering project. In recent years, relevant scientific research institutions have placed greater emphasis on the development of integrated analysis codes for severe accident in order to address the issue of program autonomy, and modular severe accident analysis program (MOSAP) is one of them independently developed by Xi'an Jiaotong University, China.PurposeThis study aims to validate the early in-vessel phenomenon analysis model of the self-developed integrated analysis code MOSAP for severe accident.MethodsThe MOSAP code and the internationally recognized severe accident analysis code were used to model and calculate experiments on international standard questions ISP31 and ISP46. The calculation results of fuel and control rod temperature, hydrogen production, and major radioactive nuclide release rates obtained by the MOSAP were compared and analyzed with experimental and internationally recognized code calculation results.ResultsThe results show that the MOSAP calculation results are in good agreement with the experimental and internationally recognized code calculation results, and the deviation between the main parameter calculation values and the experimental values is within 20%.ConclusionsThe self-developed code MOSAP can simulate the early in-vessel phenomena of severe accident such as core overheating, fuel, cladding, and control rod oxidation, as well as fission product release. |
| format | Article |
| id | doaj-art-251bbe9bc1794f41b19ee3d50b1f3097 |
| institution | DOAJ |
| issn | 0253-3219 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Science Press |
| record_format | Article |
| series | He jishu |
| spelling | doaj-art-251bbe9bc1794f41b19ee3d50b1f30972025-08-20T02:57:41ZzhoScience PressHe jishu0253-32192024-12-01471212060112060110.11889/j.0253-3219.2024.hjs.47.1206010253-3219（2024）12-0103-10Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAPGUO Chao0WU Shihao1ZHAO Chuanqi2ZHANG Yapei3WEI Chao4WU Yingwei5Nuclear and Radiation Safety Center, Beijing100082, ChinaXi'an Jiaotong University, Xi'an710049, ChinaNuclear and Radiation Safety Center, Beijing100082, ChinaXi'an Jiaotong University, Xi'an710049, ChinaNuclear and Radiation Safety Center, Beijing100082, ChinaXi'an Jiaotong University, Xi'an710049, ChinaBackgroundSevere accident is complex coupling processes involving multiple components, phases, and physical fields, and related research is a complex and challenging systematic engineering project. In recent years, relevant scientific research institutions have placed greater emphasis on the development of integrated analysis codes for severe accident in order to address the issue of program autonomy, and modular severe accident analysis program (MOSAP) is one of them independently developed by Xi'an Jiaotong University, China.PurposeThis study aims to validate the early in-vessel phenomenon analysis model of the self-developed integrated analysis code MOSAP for severe accident.MethodsThe MOSAP code and the internationally recognized severe accident analysis code were used to model and calculate experiments on international standard questions ISP31 and ISP46. The calculation results of fuel and control rod temperature, hydrogen production, and major radioactive nuclide release rates obtained by the MOSAP were compared and analyzed with experimental and internationally recognized code calculation results.ResultsThe results show that the MOSAP calculation results are in good agreement with the experimental and internationally recognized code calculation results, and the deviation between the main parameter calculation values and the experimental values is within 20%.ConclusionsThe self-developed code MOSAP can simulate the early in-vessel phenomena of severe accident such as core overheating, fuel, cladding, and control rod oxidation, as well as fission product release.http://www.hjs.sinap.ac.cn/zh/article/doi/10.11889/j.0253-3219.2024.hjs.47.120601/severe accidentin-vessel phenomenoninternational standard problemcode validation |
| spellingShingle | GUO Chao WU Shihao ZHAO Chuanqi ZHANG Yapei WEI Chao WU Yingwei Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAP He jishu severe accident in-vessel phenomenon international standard problem code validation |
| title | Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAP |
| title_full | Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAP |
| title_fullStr | Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAP |
| title_full_unstemmed | Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAP |
| title_short | Validation of the early in-vessel phenomenon analysis model of the severe accident analysis code MOSAP |
| title_sort | validation of the early in vessel phenomenon analysis model of the severe accident analysis code mosap |
| topic | severe accident in-vessel phenomenon international standard problem code validation |
| url | http://www.hjs.sinap.ac.cn/zh/article/doi/10.11889/j.0253-3219.2024.hjs.47.120601/ |
| work_keys_str_mv | AT guochao validationoftheearlyinvesselphenomenonanalysismodelofthesevereaccidentanalysiscodemosap AT wushihao validationoftheearlyinvesselphenomenonanalysismodelofthesevereaccidentanalysiscodemosap AT zhaochuanqi validationoftheearlyinvesselphenomenonanalysismodelofthesevereaccidentanalysiscodemosap AT zhangyapei validationoftheearlyinvesselphenomenonanalysismodelofthesevereaccidentanalysiscodemosap AT weichao validationoftheearlyinvesselphenomenonanalysismodelofthesevereaccidentanalysiscodemosap AT wuyingwei validationoftheearlyinvesselphenomenonanalysismodelofthesevereaccidentanalysiscodemosap |