Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature Coolant
When the feedwater valve at the outage loop of the floating nuclear power plant leaks, thermal stratification occurs in the steam generator. It causes lower water temperature in the outage loop. The extent of hazard of this phenomenon cannot be directly determined by the existing measurement paramet...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2023/4763033 |
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| author | Xinxin Liu Lei Yu Jianli Hao Xiaolong Wang |
| author_facet | Xinxin Liu Lei Yu Jianli Hao Xiaolong Wang |
| author_sort | Xinxin Liu |
| collection | DOAJ |
| description | When the feedwater valve at the outage loop of the floating nuclear power plant leaks, thermal stratification occurs in the steam generator. It causes lower water temperature in the outage loop. The extent of hazard of this phenomenon cannot be directly determined by the existing measurement parameters, which poses a threat to the operational safety of the reactor. Therefore, this study adopts two routes: data-driven combined with safety analysis system (DSAS) and mechanism model-driven combined with safety analysis system (MSAS), to propose the prediction methods for the minimum temperature of the outage loop and the maximum power caused by the low-temperature coolant. Then, the actual data are used to verify these methods and the prediction results under different initial conditions are analyzed. The results show that both the DSAS method and the MSAS method can predict the minimum temperature of the steam generator in the outage loop and the maximum power when the outage loop is put into operation, but the DSAS method has better performance under certain conditions. These methods can provide guidance to the operators to avoid reactivity insertion accident. |
| format | Article |
| id | doaj-art-70d29789408e4944aab1e000b7997e3e |
| institution | Kabale University |
| issn | 1687-6083 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-70d29789408e4944aab1e000b7997e3e2025-02-03T06:47:31ZengWileyScience and Technology of Nuclear Installations1687-60832023-01-01202310.1155/2023/4763033Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature CoolantXinxin Liu0Lei Yu1Jianli Hao2Xiaolong Wang3College of Nuclear Science and TechnologyCollege of Nuclear Science and TechnologyCollege of Nuclear Science and TechnologyCollege of Nuclear Science and TechnologyWhen the feedwater valve at the outage loop of the floating nuclear power plant leaks, thermal stratification occurs in the steam generator. It causes lower water temperature in the outage loop. The extent of hazard of this phenomenon cannot be directly determined by the existing measurement parameters, which poses a threat to the operational safety of the reactor. Therefore, this study adopts two routes: data-driven combined with safety analysis system (DSAS) and mechanism model-driven combined with safety analysis system (MSAS), to propose the prediction methods for the minimum temperature of the outage loop and the maximum power caused by the low-temperature coolant. Then, the actual data are used to verify these methods and the prediction results under different initial conditions are analyzed. The results show that both the DSAS method and the MSAS method can predict the minimum temperature of the steam generator in the outage loop and the maximum power when the outage loop is put into operation, but the DSAS method has better performance under certain conditions. These methods can provide guidance to the operators to avoid reactivity insertion accident.http://dx.doi.org/10.1155/2023/4763033 |
| spellingShingle | Xinxin Liu Lei Yu Jianli Hao Xiaolong Wang Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature Coolant Science and Technology of Nuclear Installations |
| title | Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature Coolant |
| title_full | Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature Coolant |
| title_fullStr | Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature Coolant |
| title_full_unstemmed | Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature Coolant |
| title_short | Methods for Predicting the Minimum Temperature of the Outage Loop and the Maximum Power Caused by the Low-Temperature Coolant |
| title_sort | methods for predicting the minimum temperature of the outage loop and the maximum power caused by the low temperature coolant |
| url | http://dx.doi.org/10.1155/2023/4763033 |
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