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Numerical simulation and experimental study on the comparison of the hydraulic characteristics of an axial-flow pump and a full tubular pump

Author

Listed:
  • Shi, Lijian
  • Zhang, Wenpeng
  • Jiao, Haifeng
  • Tang, Fangping
  • Wang, Li
  • Sun, Dandan
  • Shi, Wei

Abstract

An axial-flow pump impeller is designed on the basis of plane cascade theory, which is based on surface element method, to study the influence of impeller rotor on the hydraulic performance of the a full tubular pump. Then, the performance of the full tubular and axial-flow pumps has been compared and analyzed through CFD and model test, respectively. First, two-dimensional plane cascade theory is used for the hydraulic design of pump impeller blades according to the design condition of an axial-flow pump. Second, the CFD calculations of full tubular pump and axial-flow pumps are performed using numerical simulation software. Finally, the reliability of the numerical simulation is verified by using a model test. Results show that under the design condition of the axial-flow pump, the head, efficiency, and maximum efficiency correspond to 3.30 m, 86.3%, and 86.69%, respectively. In the design condition, the head of the full tubular pump is 3.12 m and decreases by 5.5%, and the hydraulic efficiency is 78.54% and declines by 7.76%. The hydraulic loss caused by clearance backflow and the disc friction loss caused by rotor housing mainly caused the reduction in the hydraulic performance of the full tubular pump. Meanwhile, the decrease in the maximum operating head of the full tubular pump is greater than that of the axial-flow pump. Moreover, the safe and stable operation area of the full tubular pump is only 82.43% of that of the axial-flow pump. This work has important theoretical and guiding significance in the design and practical engineering application of the full tubular pump.

Suggested Citation

  • Shi, Lijian & Zhang, Wenpeng & Jiao, Haifeng & Tang, Fangping & Wang, Li & Sun, Dandan & Shi, Wei, 2020. "Numerical simulation and experimental study on the comparison of the hydraulic characteristics of an axial-flow pump and a full tubular pump," Renewable Energy, Elsevier, vol. 153(C), pages 1455-1464.
    • Handle: RePEc:eee:renene:v:153:y:2020:i:c:p:1455-1464
    DOI: 10.1016/j.renene.2020.02.082
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    References listed on IDEAS

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    1. Li, Deyou & Wang, Hongjie & Li, Zhenggui & Nielsen, Torbjørn Kristian & Goyal, Rahul & Wei, Xianzhu & Qin, Daqing, 2018. "Transient characteristics during the closure of guide vanes in a pump-turbine in pump mode," Renewable Energy, Elsevier, vol. 118(C), pages 973-983.
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    Cited by:

    1. Kan, Kan & Xu, Zhe & Chen, Huixiang & Xu, Hui & Zheng, Yuan & Zhou, Daqing & Muhirwa, Alexis & Maxime, Binama, 2022. "Energy loss mechanisms of transition from pump mode to turbine mode of an axial-flow pump under bidirectional conditions," Energy, Elsevier, vol. 257(C).
    2. Wenpeng Zhang & Fangping Tang & Lijian Shi & Qiujin Hu & Ying Zhou, 2020. "Effects of an Inlet Vortex on the Performance of an Axial-Flow Pump," Energies, MDPI, vol. 13(11), pages 1-23, June.
    3. He, Y. & Tao, Y.B. & Zhao, C.Y. & Yu, X.K., 2022. "Structure parameter analysis and optimization of photovoltaic-phase change material-thermoelectric coupling system under space conditions," Renewable Energy, Elsevier, vol. 200(C), pages 320-333.
    4. Shi, Lijian & Yuan, Yao & Jiao, Haifeng & Tang, Fangping & Cheng, Li & Yang, Fan & Jin, Yan & Zhu, Jun, 2021. "Numerical investigation and experiment on pressure pulsation characteristics in a full tubular pump," Renewable Energy, Elsevier, vol. 163(C), pages 987-1000.
    5. Xu, Zhe & Zheng, Yuan & Kan, Kan & Chen, Huixiang, 2023. "Flow instability and energy performance of a coastal axial-flow pump as turbine under the influence of upstream waves," Energy, Elsevier, vol. 272(C).
    6. Hongliang Wang & Bing Long & Chuan Wang & Chen Han & Linjian Li, 2020. "Effects of the Impeller Blade with a Slot Structure on the Centrifugal Pump Performance," Energies, MDPI, vol. 13(7), pages 1-17, April.
    7. Mu, Tong & Zhang, Rui & Xu, Hui & Zheng, Yuan & Fei, Zhaodan & Li, Jinghong, 2020. "Study on improvement of hydraulic performance and internal flow pattern of the axial flow pump by groove flow control technology," Renewable Energy, Elsevier, vol. 160(C), pages 756-769.
    8. Cao, Puyu & Zhu, Rui & Yin, Gang, 2021. "Spike-type disturbances due to inlet distortion in a centrifugal pump," Renewable Energy, Elsevier, vol. 165(P1), pages 288-300.
    9. Lijian Shi & Jun Zhu & Li Wang & Shiji Chu & Fangping Tang & Yan Jin, 2021. "Comparative Analysis of Strength and Modal Characteristics of a Full Tubular Pump and an Axial Flow Pump Impellers Based on Fluid-Structure Interaction," Energies, MDPI, vol. 14(19), pages 1-18, October.
    10. Weixuan Jiao & Di Zhang & Chuan Wang & Li Cheng & Tao Wang, 2020. "Unsteady Numerical Calculation of Oblique Submerged Jet," Energies, MDPI, vol. 13(18), pages 1-13, September.

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