Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump
For a pressurized water reactor power plant, the reactor coolant pump (RCP) is a kernel component. And for a canned motor RCP, the rotor system's properties determines its safety. The liquid coolant inside the canned motor RCP fills clearance between the metal shields of rotor and stator, formi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-07-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573322000213 |
| _version_ | 1811325661441163264 |
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| author | Rui Xu Yuchen Song Xiyao Gu Bin Lin Dezhong Wang |
| author_facet | Rui Xu Yuchen Song Xiyao Gu Bin Lin Dezhong Wang |
| author_sort | Rui Xu |
| collection | DOAJ |
| description | For a pressurized water reactor power plant, the reactor coolant pump (RCP) is a kernel component. And for a canned motor RCP, the rotor system's properties determines its safety. The liquid coolant inside the canned motor RCP fills clearance between the metal shields of rotor and stator, forming a lengthy clearance flow. The influence of inlet preswirl on rotordynamic coefficients of clearance flow in canned motor RCP and their effects on the rotordynamic characteristics of the pump are numerically and experimentally investigated in this work. A quasi-steady state computational fluid dynamics (CFD) method has been used to investigate the influence of inlet preswirl. A vertical experiment rig has also been established for this purpose. Rotordynamic coefficients on different inlet preswirl ratios (IR) are obtained through CFD and experiment. Results show that the cross-coupled stiffness of the clearance flow would change significantly with inlet preswirl, but other rotordynamic coefficients would not change significantly with inlet preswirl. For the case of clearance flow between the stator and rotor cans, influence of inlet preswirl is not so significant as the IR is not large enough. |
| first_indexed | 2024-04-13T14:36:59Z |
| format | Article |
| id | doaj.art-73158f171afd441ca24a73e83cdf3797 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-04-13T14:36:59Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-73158f171afd441ca24a73e83cdf37972022-12-22T02:43:00ZengElsevierNuclear Engineering and Technology1738-57332022-07-0154725402549Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pumpRui Xu0Yuchen Song1Xiyao Gu2Bin Lin3Dezhong Wang4School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, ChinaSchool of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, ChinaSchool of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, ChinaShenyang Blower Works Group Saw Electro-Mechanics Import&Export Corporation, Shenyang, 110021, ChinaSchool of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; Corresponding author.For a pressurized water reactor power plant, the reactor coolant pump (RCP) is a kernel component. And for a canned motor RCP, the rotor system's properties determines its safety. The liquid coolant inside the canned motor RCP fills clearance between the metal shields of rotor and stator, forming a lengthy clearance flow. The influence of inlet preswirl on rotordynamic coefficients of clearance flow in canned motor RCP and their effects on the rotordynamic characteristics of the pump are numerically and experimentally investigated in this work. A quasi-steady state computational fluid dynamics (CFD) method has been used to investigate the influence of inlet preswirl. A vertical experiment rig has also been established for this purpose. Rotordynamic coefficients on different inlet preswirl ratios (IR) are obtained through CFD and experiment. Results show that the cross-coupled stiffness of the clearance flow would change significantly with inlet preswirl, but other rotordynamic coefficients would not change significantly with inlet preswirl. For the case of clearance flow between the stator and rotor cans, influence of inlet preswirl is not so significant as the IR is not large enough.http://www.sciencedirect.com/science/article/pii/S1738573322000213Reactor coolant pumpInlet preswirlClearance flowRotordynamic coefficients |
| spellingShingle | Rui Xu Yuchen Song Xiyao Gu Bin Lin Dezhong Wang Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump Nuclear Engineering and Technology Reactor coolant pump Inlet preswirl Clearance flow Rotordynamic coefficients |
| title | Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump |
| title_full | Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump |
| title_fullStr | Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump |
| title_full_unstemmed | Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump |
| title_short | Research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump |
| title_sort | research on the inlet preswirl effect of clearance flow in canned motor reactor coolant pump |
| topic | Reactor coolant pump Inlet preswirl Clearance flow Rotordynamic coefficients |
| url | http://www.sciencedirect.com/science/article/pii/S1738573322000213 |
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