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Study on the Hydraulic and Energy Loss Characteristics of the Agricultural Pumping Station Caused by Hydraulic Structures

Author

Listed:
  • Weixuan Jiao

    (College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China)

  • Zhishuang Li

    (College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China)

  • Li Cheng

    (College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China)

  • Yuqi Wang

    (College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China)

  • Bowen Zhang

    (College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China)

Abstract

The pumping station is an important part of the agricultural irrigation and drainage system. The sump is one of the common water inlet types of agricultural pumping stations. In the sump, to facilitate the installation and maintenance of equipment, some hydraulic structures, such as pump beams, maintenance platforms and chest walls, are added to the sump. At present, the impact of hydraulic structures in the sump on the hydraulic performance of the pump device is not clear, so this paper focused on the impact of hydraulic structures on the hydraulic characteristics and entropy generation characteristics of the pump device by using numerical simulation methods. The results showed that the installation of hydraulic structures in the sump has the greatest impact on the efficiency of the pump device. The efficiency coefficient increased after adding a pump beam in the sump and decreased by about 2% after adding a maintenance platform and a water retaining chest wall. Results also showed that the installation of hydraulic structures in the sump will lead to uneven distribution of entropy generation in the sump, especially in the vicinity of the hydraulic structures. The installation of the maintenance platform and chest wall will lead to the increase of the total entropy generation in the sump, which also means that the hydraulic loss in the sump will increase accordingly. Hence, in addition to the pump beam, other structures should be avoided in the sump.

Suggested Citation

  • Weixuan Jiao & Zhishuang Li & Li Cheng & Yuqi Wang & Bowen Zhang, 2022. "Study on the Hydraulic and Energy Loss Characteristics of the Agricultural Pumping Station Caused by Hydraulic Structures," Agriculture, MDPI, vol. 12(11), pages 1-16, October.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:11:p:1770-:d:952840
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    References listed on IDEAS

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    1. Yu, An & Tang, Yibo & Tang, Qinghong & Cai, Jianguo & Zhao, Lei & Ge, Xinfeng, 2022. "Energy analysis of Francis turbine for various mass flow rate conditions based on entropy production theory," Renewable Energy, Elsevier, vol. 183(C), pages 447-458.
    2. Qingfeng Ji & Guoying Wu & Weili Liao & Honggang Fan, 2022. "Flow Deflection between Guide Vanes in a Pump Turbine Operating in Pump Mode with a Slight Opening," Energies, MDPI, vol. 15(4), pages 1-18, February.
    3. Zhou, Ling & Hang, Jianwei & Bai, Ling & Krzemianowski, Zbigniew & El-Emam, Mahmoud A. & Yasser, Eman & Agarwal, Ramesh, 2022. "Application of entropy production theory for energy losses and other investigation in pumps and turbines: A review," Applied Energy, Elsevier, vol. 318(C).
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    Cited by:

    1. Hongyin Zhang & Jianlong Liu & Jinxin Wu & Weixuan Jiao & Li Cheng & Mingbin Yuan, 2023. "Research on Optimization of the Bulb Form of the Bulb Tubular Pump Device for a Low-Head Agricultural Irrigation Pumping Station," Agriculture, MDPI, vol. 13(9), pages 1-18, August.

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