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Research on Oil Mist Leakage of Bearing in Hydropower Station: A Review

Author

Listed:
  • Jie Sun

    (College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China)

  • Yuquan Zhang

    (College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China)

  • Bin Liu

    (Luoyun Water Conservancy Project Management Office of Jiangsu Province, Suqian 223800, China)

  • Xinfeng Ge

    (College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China)

  • Yuan Zheng

    (College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China)

  • Emmanuel Fernandez-Rodriguez

    (Technological Institute of Merida, Technological Avenue, Merida 97118, Mexico)

Abstract

Hydropower is a clean and renewable energy, fundamental to the attainment of a sustainable society. Despite its efficacy and success, there is a need to address the hydroelectric stations’ oil throwing and mist leakage, resulting in the deterioration of the generating units, water, and biodiversity. The conventional engineering measures to deal with oil mist leakage include: the reduction in the operating pad and oil temperature, optimization of the oil circulation loop in the oil tank, improvement of the sealing performance, and design of the oil mist emission device. However, the problem of oil mist leakage of bearings is complex, intractable, and cannot be solved by only one method. Numerical simulation can help to solve the oil mist problem and make up for the shortage of engineering measures. Yet, the mass transfer, involving multi-component and multi-phase flow, becomes a limitation for many numerical studies. As a result, this paper seeks to integrate the solutions by reviewing two influences: the global measures of oil mist leakage proof in the oil tank of bearings in the past 40 years, and the views and experiences of engineering practices. These findings offer some relevant insights into the effectiveness of the applied methods and solving of the oil mist leakage problem.

Suggested Citation

  • Jie Sun & Yuquan Zhang & Bin Liu & Xinfeng Ge & Yuan Zheng & Emmanuel Fernandez-Rodriguez, 2022. "Research on Oil Mist Leakage of Bearing in Hydropower Station: A Review," Energies, MDPI, vol. 15(7), pages 1-24, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:7:p:2632-:d:786654
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    References listed on IDEAS

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    1. Harrag, Abdelghani & Messalti, Sabir, 2015. "Variable step size modified P&O MPPT algorithm using GA-based hybrid offline/online PID controller," Renewable and Sustainable Energy Reviews, Elsevier, vol. 49(C), pages 1247-1260.
    2. Zhang, Yuquan & Zang, Wei & Zheng, Jinhai & Cappietti, Lorenzo & Zhang, Jisheng & Zheng, Yuan & Fernandez-Rodriguez, E., 2021. "The influence of waves propagating with the current on the wake of a tidal stream turbine," Applied Energy, Elsevier, vol. 290(C).
    3. Liming, Zhai & Yongyao, Luo & Zhengwei, Wang & Xin, Liu & Yexiang, Xiao, 2017. "A review on the large tilting pad thrust bearings in the hydropower units," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 1182-1198.
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    Cited by:

    1. Jiajun Liu & Haokun Lin & Yue Liu & Lei Xiong & Chenjing Li & Tinghu Zhou & Mike Ma, 2023. "Global Relation-Aware-Based Oil Detection Method for Water Surface of Catchment Wells in Hydropower Stations," Sustainability, MDPI, vol. 15(8), pages 1-18, April.
    2. Emanuele Quaranta, 2023. "Lubricant Oil Consumption and Opportunities for Oil-Free Turbines in the Hydropower Sector: A European Assessment," Energies, MDPI, vol. 16(2), pages 1-7, January.

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