Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal Pump
This work analyzes the causes of the slip phenomenon in the impeller on the basis of the internal flow mechanism. Detailed optical measurements of the flow inside the rotation passages of a five-bladed centrifugal pump impeller are obtained through particle image velocimetry (PIV). On the basis of e...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6614981 |
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| _version_ | 1832550946769469440 |
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| author | Bo Chen Baolin Song Bicheng Tu Yiming Zhang Xiaojun Li Zhigang Li Zuchao Zhu |
| author_facet | Bo Chen Baolin Song Bicheng Tu Yiming Zhang Xiaojun Li Zhigang Li Zuchao Zhu |
| author_sort | Bo Chen |
| collection | DOAJ |
| description | This work analyzes the causes of the slip phenomenon in the impeller on the basis of the internal flow mechanism. Detailed optical measurements of the flow inside the rotation passages of a five-bladed centrifugal pump impeller are obtained through particle image velocimetry (PIV). On the basis of experimental data, the deviation coefficient of slip velocity is proposed and then revised according to the slip factor calculation formula of Stechkin. Results show that, at the same rotation speed, the slip factor increases with the flow rate and reaches the maximum value at 1.0 QBEP flow rate. At different rotation speeds, the slip factor increases with the rotation speed and shows a relatively large variation range. Moreover, a revised slip factor formula is proposed. The modified model is suitable for the correction of slip factor at part-load flow rates and serves as a guide for the hydraulic performance design and prediction of centrifugal pumps. |
| format | Article |
| id | doaj-art-f3c81807a2c3401687a3771810621c7a |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f3c81807a2c3401687a3771810621c7a2025-02-03T06:05:28ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66149816614981Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal PumpBo Chen0Baolin Song1Bicheng Tu2Yiming Zhang3Xiaojun Li4Zhigang Li5Zuchao Zhu6National-Provincial Joint Engineering Laboratory for Fluid Transmission System Technology, Zhejiang Sci-Tech University, No. 2 Avenue, Hangzhou, ChinaNational-Provincial Joint Engineering Laboratory for Fluid Transmission System Technology, Zhejiang Sci-Tech University, No. 2 Avenue, Hangzhou, ChinaEbara Great Pumps Co. LTD., No. 111, Fengdu 1st Road, Wenzhou, Ruian, ChinaHangzhou New-Asia Cryogenic Technology Co., Ltd., No. 391, Wener Road, Hangzhou, ChinaNational-Provincial Joint Engineering Laboratory for Fluid Transmission System Technology, Zhejiang Sci-Tech University, No. 2 Avenue, Hangzhou, ChinaNational-Provincial Joint Engineering Laboratory for Fluid Transmission System Technology, Zhejiang Sci-Tech University, No. 2 Avenue, Hangzhou, ChinaNational-Provincial Joint Engineering Laboratory for Fluid Transmission System Technology, Zhejiang Sci-Tech University, No. 2 Avenue, Hangzhou, ChinaThis work analyzes the causes of the slip phenomenon in the impeller on the basis of the internal flow mechanism. Detailed optical measurements of the flow inside the rotation passages of a five-bladed centrifugal pump impeller are obtained through particle image velocimetry (PIV). On the basis of experimental data, the deviation coefficient of slip velocity is proposed and then revised according to the slip factor calculation formula of Stechkin. Results show that, at the same rotation speed, the slip factor increases with the flow rate and reaches the maximum value at 1.0 QBEP flow rate. At different rotation speeds, the slip factor increases with the rotation speed and shows a relatively large variation range. Moreover, a revised slip factor formula is proposed. The modified model is suitable for the correction of slip factor at part-load flow rates and serves as a guide for the hydraulic performance design and prediction of centrifugal pumps.http://dx.doi.org/10.1155/2021/6614981 |
| spellingShingle | Bo Chen Baolin Song Bicheng Tu Yiming Zhang Xiaojun Li Zhigang Li Zuchao Zhu Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal Pump Shock and Vibration |
| title | Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal Pump |
| title_full | Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal Pump |
| title_fullStr | Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal Pump |
| title_full_unstemmed | Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal Pump |
| title_short | Effect of Rotation Speed and Flow Rate on Slip Factor in a Centrifugal Pump |
| title_sort | effect of rotation speed and flow rate on slip factor in a centrifugal pump |
| url | http://dx.doi.org/10.1155/2021/6614981 |
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