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Impeller Optimized Design of the Centrifugal Pump: A Numerical and Experimental Investigation

Author

Listed:
  • Xiangdong Han

    (Key Laboratory of Hydraulic Machinery Transients, Ministry of Education, Wuhan University, Wuhan 430072, China
    Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China
    School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)

  • Yong Kang

    (Key Laboratory of Hydraulic Machinery Transients, Ministry of Education, Wuhan University, Wuhan 430072, China
    Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China
    School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
    Collaborative Innovation Center of Geospatial Technology, Wuhan 430079, China)

  • Deng Li

    (Key Laboratory of Hydraulic Machinery Transients, Ministry of Education, Wuhan University, Wuhan 430072, China
    Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan University, Wuhan 430072, China
    School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)

  • Weiguo Zhao

    (School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

Abstract

Combined numerical simulation with experiment, blade wrap angle, and blade exit angle are varied to investigate the optimized design of the impeller of centrifugal pump. Blade wrap angles are 122°, 126°, and 130°. Blade exit angles are 24°, 26°, and 28°. Based on numerical simulation, internal flow of the centrifugal pump with five different impellers under 0.6, 0.8, 1.0, 1.2, and 1.5 Q d are simulated. Variations of static pressure, relative velocity, streamline, and turbulent kinetic energy are analyzed. The impeller with blade wrap angle 126° and blade exit angle 24° are optimal. Distribution of static pressure is the most uniform and relative velocity sudden changes do not exist. Streamlines are the smoothest. Distribution scope of turbulent kinetic energy is the smallest. Based on performance experiments, head and efficiency of the centrifugal pump with the best impeller are tested. The values of head and efficiency are higher than that of the original pump. Centrifugal pump with the best impeller has better hydraulic performance than the original centrifugal pump.

Suggested Citation

  • Xiangdong Han & Yong Kang & Deng Li & Weiguo Zhao, 2018. "Impeller Optimized Design of the Centrifugal Pump: A Numerical and Experimental Investigation," Energies, MDPI, vol. 11(6), pages 1-21, June.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:6:p:1444-:d:150559
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    Citations

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    Cited by:

    1. Jia Li & Xin Wang & Yue Wang & Wancheng Wang & Baibing Chen & Xiaolong Chen, 2020. "Effects of a Combination Impeller on the Flow Field and External Performance of an Aero-Fuel Centrifugal Pump," Energies, MDPI, vol. 13(4), pages 1-16, February.
    2. Ran Tao & Ruofu Xiao & Zhengwei Wang, 2018. "Influence of Blade Leading-Edge Shape on Cavitation in a Centrifugal Pump Impeller," Energies, MDPI, vol. 11(10), pages 1-16, September.

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