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Effect of temperature, suction head and flow velocity on cavitation in a Francis turbine of small hydro power plant

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  • Gohil, Pankaj P.
  • Saini, R.P.

Abstract

Erosion due to cavitation in hydro turbines is one of the reasons for component failure that costs a lot to the hydro power plants. Inception and development of cavitation depend upon different parameters such as atmospheric pressure, suction head, velocity of flow, temperature, gas content in the liquid and operating hours of the turbine. Parameters generally considered for design of a turbine and are used to predict cavitation could be different at actual site. The cavitation in hydro turbine is predicted during model testing and correlated with specific speed. However the erosion and efficiency decay due to cavitation phenomena of turbines are too complex to stimulate which depends on other operating conditions at site.

Suggested Citation

  • Gohil, Pankaj P. & Saini, R.P., 2015. "Effect of temperature, suction head and flow velocity on cavitation in a Francis turbine of small hydro power plant," Energy, Elsevier, vol. 93(P1), pages 613-624.
    • Handle: RePEc:eee:energy:v:93:y:2015:i:p1:p:613-624
    DOI: 10.1016/j.energy.2015.09.042
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    Citations

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    Cited by:

    1. John, Bony & Thomas, Rony N. & Varghese, James, 2020. "Integration of hydrokinetic turbine-PV-battery standalone system for tropical climate condition," Renewable Energy, Elsevier, vol. 149(C), pages 361-373.
    2. Xing Zhou & Changzheng Shi & Kazuyoshi Miyagawa & Hegao Wu & Jinhong Yu & Zhu Ma, 2020. "Investigation of Pressure Fluctuation and Pulsating Hydraulic Axial Thrust in Francis Turbines," Energies, MDPI, vol. 13(7), pages 1-16, April.
    3. Laouari, Ahmed & Ghenaiet, Adel, 2021. "Investigation of steady and unsteady cavitating flows through a small Francis turbine," Renewable Energy, Elsevier, vol. 172(C), pages 841-861.
    4. Li, Deyou & Song, Yechen & Lin, Song & Wang, Hongjie & Qin, Yonglin & Wei, Xianzhu, 2021. "Effect mechanism of cavitation on the hump characteristic of a pump-turbine," Renewable Energy, Elsevier, vol. 167(C), pages 369-383.
    5. Sotoude Haghighi, M.H. & Mirghavami, S.M. & Chini, S.F. & Riasi, A., 2019. "Developing a method to design and simulation of a very low head axial turbine with adjustable rotor blades," Renewable Energy, Elsevier, vol. 135(C), pages 266-276.
    6. Kumar, Anuj & Saini, R.P., 2017. "Performance analysis of a Savonius hydrokinetic turbine having twisted blades," Renewable Energy, Elsevier, vol. 108(C), pages 502-522.
    7. K., Subramanya & Chelliah, Thanga Raj, 2023. "Capability of synchronous and asynchronous hydropower generating systems: A comprehensive study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 188(C).
    8. Borkowski, Dariusz & Węgiel, Michał & Ocłoń, Paweł & Węgiel, Tomasz, 2019. "CFD model and experimental verification of water turbine integrated with electrical generator," Energy, Elsevier, vol. 185(C), pages 875-883.
    9. Li, Huanhuan & Chen, Diyi & Zhang, Hao & Wu, Changzhi & Wang, Xiangyu, 2017. "Hamiltonian analysis of a hydro-energy generation system in the transient of sudden load increasing," Applied Energy, Elsevier, vol. 185(P1), pages 244-253.
    10. Kumar, Prashant & Singal, S.K. & Gohil, Pankaj P., 2024. "A technical review on combined effect of cavitation and silt erosion on Francis turbine," Renewable and Sustainable Energy Reviews, Elsevier, vol. 190(PB).
    11. Ge, Mingming & Manikkam, Pratulya & Ghossein, Joe & Kumar Subramanian, Roshan & Coutier-Delgosha, Olivier & Zhang, Guangjian, 2022. "Dynamic mode decomposition to classify cavitating flow regimes induced by thermodynamic effects," Energy, Elsevier, vol. 254(PC).
    12. Shahzer, Mohammad Abu & Kim, Jin-Hyuk, 2024. "Investigation of role of fins in a Francis turbine model's cavitation-induced instabilities under design and off-design conditions," Energy, Elsevier, vol. 292(C).

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