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Experimental Investigation and Performance Characteristics of Francis Turbine with Different Guide Vane Openings in Hydro Distributed Generation Power Plants

Author

Listed:
  • Megavath Vijay Kumar

    (Department of Mechanical Engineering, Malla Reddy Engineering College, Maisammaguda, Secunderabad 500100, India)

  • T. Subba Reddy

    (Department of Mechanical Engineering, Andhra Loyola Institute of Engineering and Technology, Vijayawada 520008, India)

  • P. Sarala

    (Department of Electrical and Electronics Engineering, Malla Reddy Engineering College, Secunderabad 500100, India)

  • P. Srinivasa Varma

    (Department of Electrical and Electronics Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram 522502, India)

  • Obbu Chandra Sekhar

    (Department of Electrical Engineering, National Institute of Technology, Srinagar 190006, India)

  • Abdulrahman Babqi

    (Department of Electrical Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia)

  • Yasser Alharbi

    (Department of Electrical Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia)

  • Basem Alamri

    (Department of Electrical Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia)

  • Ch. Rami Reddy

    (Department of Electrical and Electronics Engineering, Malla Reddy Engineering College, Secunderabad 500100, India
    Department of Electrical Engineering, National Institute of Technology, Srinagar 190006, India)

Abstract

This article presents a study on the performance characteristics of a Francis turbine operating with various guide vane openings to determine the best operating point based on unit quantities. The guide vane openings were specified based on the width between the vanes at their exit, i.e., 10 mm, 13 mm, 16 mm, and 19 mm. The performance characteristic curves of the Francis turbine—head versus speed, torque versus speed, discharge versus speed, and efficiency versus speed—were obtained at various input power and guide vane openings. From these data, unit curves were plotted and the corresponding best efficiency points were obtained. The highest efficiency of 50.25% was obtained at a guide vane opening of 19 mm. The values of head, discharge, speed, and output power at BEP were 7.84 m, 13.55 lps, 1250 rpm, and 524 W, respectively.

Suggested Citation

  • Megavath Vijay Kumar & T. Subba Reddy & P. Sarala & P. Srinivasa Varma & Obbu Chandra Sekhar & Abdulrahman Babqi & Yasser Alharbi & Basem Alamri & Ch. Rami Reddy, 2022. "Experimental Investigation and Performance Characteristics of Francis Turbine with Different Guide Vane Openings in Hydro Distributed Generation Power Plants," Energies, MDPI, vol. 15(18), pages 1-24, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:18:p:6798-:d:917408
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    References listed on IDEAS

    as
    1. Ravi Koirala & Baoshan Zhu & Hari Prasad Neopane, 2016. "Effect of Guide Vane Clearance Gap on Francis Turbine Performance," Energies, MDPI, vol. 9(4), pages 1-14, April.
    2. Koirala, Ravi & Neopane, Hari Prasad & Zhu, Baoshan & Thapa, Bhola, 2019. "Effect of sediment erosion on flow around guide vanes of Francis turbine," Renewable Energy, Elsevier, vol. 136(C), pages 1022-1027.
    3. Guang Li & Fengshan Ma & Jie Guo & Haijun Zhao, 2021. "Case Study of Roadway Deformation Failure Mechanisms: Field Investigation and Numerical Simulation," Energies, MDPI, vol. 14(4), pages 1-15, February.
    4. Choi, Hyen-Jun & Zullah, Mohammed Asid & Roh, Hyoung-Woon & Ha, Pil-Su & Oh, Sueg-Young & Lee, Young-Ho, 2013. "CFD validation of performance improvement of a 500 kW Francis turbine," Renewable Energy, Elsevier, vol. 54(C), pages 111-123.
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