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Influence of Prewhirl Regulation by Inlet Guide Vanes on Cavitation Performance of a Centrifugal Pump

Author

Listed:
  • Lei Tan

    (State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China)

  • Baoshan Zhu

    (State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China)

  • Shuliang Cao

    (State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China)

  • Yuchuan Wang

    (State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China)

  • Binbin Wang

    (Zachry Department of Civil Engineering, Texas A&M University, College Station, TX 77843, USA)

Abstract

The influence of prewhirl regulation by inlet guide vanes (IGVs) on a centrifugal pump performance is investigated experimentally and numerically. The experimental results show that IGVs can obviously change the head and increase the efficiency of the tested centrifugal pump over a wide range of flow rates. Although the cavitation performance is degraded, the variation of the cavitation critical point is less than 0.5 m. Movement of the computed three-dimensional streamlines in suction pipe and impeller are analyzed in order to reveal the mechanism how the IGVs realize the prewhirl regulation. The calculated results show that the influence of IGVs on the cavitation performance of centrifugal pump is limited by a maximum total pressure drop of 1777 Pa, about 7.6% of the total pressure at the suction pipe inlet for a prewhirl angle of 24°.

Suggested Citation

  • Lei Tan & Baoshan Zhu & Shuliang Cao & Yuchuan Wang & Binbin Wang, 2014. "Influence of Prewhirl Regulation by Inlet Guide Vanes on Cavitation Performance of a Centrifugal Pump," Energies, MDPI, vol. 7(2), pages 1-16, February.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:2:p:1050-1065:d:33302
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    References listed on IDEAS

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    1. Ferro, L.M.C. & Gato, L.M.C. & Falcão, A.F.O., 2010. "Design and experimental validation of the inlet guide vane system of a mini hydraulic bulb-turbine," Renewable Energy, Elsevier, vol. 35(9), pages 1920-1928.
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    Cited by:

    1. Jiaxing Lu & Xiaobing Liu & Yongzhong Zeng & Baoshan Zhu & Bo Hu & Hong Hua, 2020. "Investigation of the Noise Induced by Unstable Flow in a Centrifugal Pump," Energies, MDPI, vol. 13(3), pages 1-22, January.
    2. Yabin Liu & Lei Tan & Ming Liu & Yue Hao & Yun Xu, 2017. "Influence of Prewhirl Angle and Axial Distance on Energy Performance and Pressure Fluctuation for a Centrifugal Pump with Inlet Guide Vanes," Energies, MDPI, vol. 10(5), pages 1-14, May.
    3. Kan, Kan & Binama, Maxime & Chen, Huixiang & Zheng, Yuan & Zhou, Daqing & Su, Wentao & Muhirwa, Alexis, 2022. "Pump as turbine cavitation performance for both conventional and reverse operating modes: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).
    4. Xu, Wei & Chen, Genglin & Shi, Huijin & Zhang, Pengcheng & Chen, Xuemei, 2023. "Research on operational characteristics of coal power centrifugal fans at off-design working conditions based on flap-angle adjustment," Energy, Elsevier, vol. 284(C).
    5. Hehui Zhang & Shengxiang Deng & Yingjie Qu, 2017. "Numerical Investigation of Periodic Fluctuations in Energy Efficiency in Centrifugal Pumps at Different Working Points," Energies, MDPI, vol. 10(3), pages 1-16, March.
    6. Zhe Ma & Baoshan Zhu & Cong Rao & Yonghong Shangguan, 2019. "Comprehensive Hydraulic Improvement and Parametric Analysis of a Francis Turbine Runner," Energies, MDPI, vol. 12(2), pages 1-20, January.
    7. Genglin Chen & Wei Xu & Jinyun Zhao & Haipeng Zhang, 2018. "Energy-Saving Performance of Flap-Adjustment-Based Centrifugal Fan," Energies, MDPI, vol. 11(1), pages 1-14, January.
    8. Patel, Vimal & Eldho, T.I. & Prabhu, S.V., 2019. "Performance enhancement of a Darrieus hydrokinetic turbine with the blocking of a specific flow region for optimum use of hydropower," Renewable Energy, Elsevier, vol. 135(C), pages 1144-1156.

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