Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systems
Combined pump-pressurized and gravity flow are increasingly relevant in large-scale water delivery methods, yet the transient control strategies for such integrated configurations remain insufficiently addressed. This paper presents an investigation into water hammer protection measures for the syst...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Engineering Applications of Computational Fluid Mechanics |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/19942060.2025.2545887 |
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| author | Xuyun Chen Jian Zhang Xiaodong Yu |
| author_facet | Xuyun Chen Jian Zhang Xiaodong Yu |
| author_sort | Xuyun Chen |
| collection | DOAJ |
| description | Combined pump-pressurized and gravity flow are increasingly relevant in large-scale water delivery methods, yet the transient control strategies for such integrated configurations remain insufficiently addressed. This paper presents an investigation into water hammer protection measures for the system and delineates the functional layout of each hydraulic section. A theoretical framework is established to analyze the pump-valve linkage. Theoretical formulas are derived to guide valve operation and to calculate replenished water volumes for the high-level surge tank and energy dissipation boxes (EDBs). The correlation between valve operation and water replenishment volume is examined. A corresponding pump-valve linkage strategy is determined for accident conditions. The effectiveness of the proposed protective measures has been demonstrated through an actual water delivery project. The derived valve closure rule and water replenishment volume formula are consistent with the numerical simulation results, providing a reliable basis for designing pump-valve linkage strategies and optimizing the hydraulic layout of water delivery systems. Analysis indicates that valve closure methods of valves exert limited influence on system pressure variations and air vessel performance. Simultaneous valve closure can effectively reduce fluctuations in the water levels of the high-level surge tank and EDBs. The research results can serve as a reference for the design, safe operation, and emergency control of water hammer protection in combined water delivery systems, while also reducing the computational workload of numerical simulations. |
| format | Article |
| id | doaj-art-11540eb7560e4ce98c03688b03db0b77 |
| institution | Kabale University |
| issn | 1994-2060 1997-003X |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj-art-11540eb7560e4ce98c03688b03db0b772025-08-22T07:51:22ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2025-12-0119110.1080/19942060.2025.2545887Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systemsXuyun Chen0Jian Zhang1Xiaodong Yu2College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, People’s Republic of ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, People’s Republic of ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, People’s Republic of ChinaCombined pump-pressurized and gravity flow are increasingly relevant in large-scale water delivery methods, yet the transient control strategies for such integrated configurations remain insufficiently addressed. This paper presents an investigation into water hammer protection measures for the system and delineates the functional layout of each hydraulic section. A theoretical framework is established to analyze the pump-valve linkage. Theoretical formulas are derived to guide valve operation and to calculate replenished water volumes for the high-level surge tank and energy dissipation boxes (EDBs). The correlation between valve operation and water replenishment volume is examined. A corresponding pump-valve linkage strategy is determined for accident conditions. The effectiveness of the proposed protective measures has been demonstrated through an actual water delivery project. The derived valve closure rule and water replenishment volume formula are consistent with the numerical simulation results, providing a reliable basis for designing pump-valve linkage strategies and optimizing the hydraulic layout of water delivery systems. Analysis indicates that valve closure methods of valves exert limited influence on system pressure variations and air vessel performance. Simultaneous valve closure can effectively reduce fluctuations in the water levels of the high-level surge tank and EDBs. The research results can serve as a reference for the design, safe operation, and emergency control of water hammer protection in combined water delivery systems, while also reducing the computational workload of numerical simulations.https://www.tandfonline.com/doi/10.1080/19942060.2025.2545887Air vesselenergy dissipation boxvalve closurehydraulic transientwater hammerlong-distance water delivery system |
| spellingShingle | Xuyun Chen Jian Zhang Xiaodong Yu Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systems Engineering Applications of Computational Fluid Mechanics Air vessel energy dissipation box valve closure hydraulic transient water hammer long-distance water delivery system |
| title | Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systems |
| title_full | Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systems |
| title_fullStr | Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systems |
| title_full_unstemmed | Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systems |
| title_short | Water hammer protection and pump-valve linkage optimization for combined pump-pressurized and gravity flow water delivery systems |
| title_sort | water hammer protection and pump valve linkage optimization for combined pump pressurized and gravity flow water delivery systems |
| topic | Air vessel energy dissipation box valve closure hydraulic transient water hammer long-distance water delivery system |
| url | https://www.tandfonline.com/doi/10.1080/19942060.2025.2545887 |
| work_keys_str_mv | AT xuyunchen waterhammerprotectionandpumpvalvelinkageoptimizationforcombinedpumppressurizedandgravityflowwaterdeliverysystems AT jianzhang waterhammerprotectionandpumpvalvelinkageoptimizationforcombinedpumppressurizedandgravityflowwaterdeliverysystems AT xiaodongyu waterhammerprotectionandpumpvalvelinkageoptimizationforcombinedpumppressurizedandgravityflowwaterdeliverysystems |