Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unit
The passive safety system is adopted in an AP1000 nuclear power unit to improve the operation safety of the whole unit. However, due to boron diffusion and periodic sampling, boron dilution occurs in the core makeup tank. The boron replenishment process in the core makeup tank is essential and becom...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-06-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573322000018 |
| _version_ | 1818212221113597952 |
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| author | Hong Wang Miao Zhang Jialong Li Junpeng Wang |
| author_facet | Hong Wang Miao Zhang Jialong Li Junpeng Wang |
| author_sort | Hong Wang |
| collection | DOAJ |
| description | The passive safety system is adopted in an AP1000 nuclear power unit to improve the operation safety of the whole unit. However, due to boron diffusion and periodic sampling, boron dilution occurs in the core makeup tank. The boron replenishment process in the core makeup tank is essential and becomes particularly important. Based on the validated models, this article numerically investigates the influence of the replenishment flow rate and the position on the boron distribution in the core makeup tank. The thermal fatigue phenomenon of the “T” connection caused by replenishment is analyzed. Finally, the replenishment strategy is proposed to benefit both boron mixing in the core makeup tank and eliminating the thermal fatigue of the “T” connection. |
| first_indexed | 2024-12-12T05:44:57Z |
| format | Article |
| id | doaj.art-63a160130e9848c1a2ddec57f9ccf1c5 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-12T05:44:57Z |
| publishDate | 2022-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-63a160130e9848c1a2ddec57f9ccf1c52022-12-22T00:35:49ZengElsevierNuclear Engineering and Technology1738-57332022-06-0154623212328Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unitHong Wang0Miao Zhang1Jialong Li2Junpeng Wang3Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, 116026, China; Corresponding author.Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, 116026, ChinaNaval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, 116026, ChinaShandong Haiyang Nuclear Power CO. LTD, Haiyang, 265116, ChinaThe passive safety system is adopted in an AP1000 nuclear power unit to improve the operation safety of the whole unit. However, due to boron diffusion and periodic sampling, boron dilution occurs in the core makeup tank. The boron replenishment process in the core makeup tank is essential and becomes particularly important. Based on the validated models, this article numerically investigates the influence of the replenishment flow rate and the position on the boron distribution in the core makeup tank. The thermal fatigue phenomenon of the “T” connection caused by replenishment is analyzed. Finally, the replenishment strategy is proposed to benefit both boron mixing in the core makeup tank and eliminating the thermal fatigue of the “T” connection.http://www.sciencedirect.com/science/article/pii/S1738573322000018AP1000Core makeup tankBoron dilutionBoron replenishment strategy |
| spellingShingle | Hong Wang Miao Zhang Jialong Li Junpeng Wang Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unit Nuclear Engineering and Technology AP1000 Core makeup tank Boron dilution Boron replenishment strategy |
| title | Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unit |
| title_full | Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unit |
| title_fullStr | Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unit |
| title_full_unstemmed | Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unit |
| title_short | Numerical study on CMT boron replenishment strategy for an AP1000 nuclear power unit |
| title_sort | numerical study on cmt boron replenishment strategy for an ap1000 nuclear power unit |
| topic | AP1000 Core makeup tank Boron dilution Boron replenishment strategy |
| url | http://www.sciencedirect.com/science/article/pii/S1738573322000018 |
| work_keys_str_mv | AT hongwang numericalstudyoncmtboronreplenishmentstrategyforanap1000nuclearpowerunit AT miaozhang numericalstudyoncmtboronreplenishmentstrategyforanap1000nuclearpowerunit AT jialongli numericalstudyoncmtboronreplenishmentstrategyforanap1000nuclearpowerunit AT junpengwang numericalstudyoncmtboronreplenishmentstrategyforanap1000nuclearpowerunit |