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Influence of Prewhirl Angle and Axial Distance on Energy Performance and Pressure Fluctuation for a Centrifugal Pump with Inlet Guide Vanes

Author

Listed:
  • Yabin Liu

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

  • Lei Tan

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

  • Ming Liu

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

  • Yue Hao

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

  • Yun Xu

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

Abstract

The energy performance and pressure fluctuations in a centrifugal pump with inlet guide vanes (IGVs) are investigated experimentally and numerically in a prewhirl angle range of −24° to 24° and in an axial distance range of 280 mm, 380 mm, and 460 mm. The reliability and accuracy of the numerical method are validated by the satisfactory agreement between the experimental data and numerical results. Prewhirl regulation with IGVs can significantly increase the energy performance and broaden the efficient operation range for the centrifugal pump due to the improvement of flow pattern at the impeller inlet. The prewhirl angle has an obvious impact on pump energy performance, and the maximum amplitudes of pressure fluctuations on the blade leading edge of the pressure and suction sides decrease by 69% and 89%, respectively. The axial distance has a slight impact on pump energy performance, but the maximum amplitudes of pressure fluctuations drop by 35.4% on the blade leading edge of pressure side when the axial distance extends from 280 mm to 460 mm.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:5:p:695-:d:98719
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    References listed on IDEAS

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    1. Yabin Liu & Lei Tan & Yue Hao & Yun Xu, 2017. "Energy Performance and Flow Patterns of a Mixed-Flow Pump with Different Tip Clearance Sizes," Energies, MDPI, vol. 10(2), pages 1-15, February.
    2. Yue Hao & Lei Tan & Yabin Liu & Yun Xu & Jinsong Zhang & Baoshan Zhu, 2017. "Energy Performance and Radial Force of a Mixed-Flow Pump with Symmetrical and Unsymmetrical Tip Clearances," Energies, MDPI, vol. 10(1), pages 1-13, January.
    3. 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.
    4. 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.
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    Cited by:

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    2. Liu, Yabin & Tan, Lei, 2018. "Tip clearance on pressure fluctuation intensity and vortex characteristic of a mixed flow pump as turbine at pump mode," Renewable Energy, Elsevier, vol. 129(PA), pages 606-615.
    3. Yuquan Zhang & Yanhe Xu & Yuan Zheng & E. Fernandez-Rodriguez & Aoran Sun & Chunxia Yang & Jue Wang, 2019. "Multiobjective Optimization Design and Experimental Investigation on the Axial Flow Pump with Orthogonal Test Approach," Complexity, Hindawi, vol. 2019, pages 1-14, December.
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    5. Jinsong Zhang & Lei Tan, 2018. "Energy Performance and Pressure Fluctuation of a Multiphase Pump with Different Gas Volume Fractions," Energies, MDPI, vol. 11(5), pages 1-14, May.
    6. 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.
    7. 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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    9. Kumar, P. Madhan & Seo, Jeonghwa & Seok, Woochan & Rhee, Shin Hyung & Samad, Abdus, 2019. "Multi-fidelity optimization of blade thickness parameters for a horizontal axis tidal stream turbine," Renewable Energy, Elsevier, vol. 135(C), pages 277-287.
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