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Variable-Speed Propeller Turbine for Small Hydropower Applications

Author

Listed:
  • Eva Bílková

    (Hydraulic Structures Department, Faculty of Civil Engineering, Czech Technical University, 166 29 Prague, Czech Republic)

  • Jiří Souček

    (Hydraulic Structures Department, Faculty of Civil Engineering, Czech Technical University, 166 29 Prague, Czech Republic)

  • Martin Kantor

    (Institute of Machines and Power Engineering, Faculty of Mechanical Engineering, University J. E. Purkyně, 400 96 Ústí nad Labem, Czech Republic)

  • Roman Kubíček

    (Elzaco spol. s r.o., 787 01 Šumperk, Czech Republic)

  • Petr Nowak

    (Hydraulic Structures Department, Faculty of Civil Engineering, Czech Technical University, 166 29 Prague, Czech Republic)

Abstract

Standard technical solutions are not cost-effective for many small hydropower sites. This study aims to demonstrate the workflow for the tailor-made variable-speed axial propeller turbine and provide proof of this concept. The turbine is designed to meet the site’s specific space limitations and operating range needs. The runner shape is adjusted to the variable-speed operation and defined hydraulic profile using a parametric geometry model and CFD-based optimization. The variable-speed propeller turbine shows excellent flow control while keeping the mechanical design simple. The tailor-made approach minimizes construction costs using existing structures and is highly suitable for mini-hydropower applications. The prototype—an atypical turbine designed for highly restricted space and installed on-site—serves as proof of the concept. The findings on the design of axial variable-speed turbines are presented.

Suggested Citation

  • Eva Bílková & Jiří Souček & Martin Kantor & Roman Kubíček & Petr Nowak, 2023. "Variable-Speed Propeller Turbine for Small Hydropower Applications," Energies, MDPI, vol. 16(9), pages 1-14, April.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:9:p:3811-:d:1136062
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    References listed on IDEAS

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    4. Dariusz Borkowski & Marek Majdak, 2020. "Small Hydropower Plants with Variable Speed Operation—An Optimal Operation Curve Determination," Energies, MDPI, vol. 13(23), pages 1-20, November.
    5. Endashaw Tesfaye Woldemariam & Hirpa G. Lemu & G. Gary Wang, 2018. "CFD-Driven Valve Shape Optimization for Performance Improvement of a Micro Cross-Flow Turbine," Energies, MDPI, vol. 11(1), pages 1-18, January.
    6. Quaranta, Emanuele & Revelli, Roberto, 2018. "Gravity water wheels as a micro hydropower energy source: A review based on historic data, design methods, efficiencies and modern optimizations," Renewable and Sustainable Energy Reviews, Elsevier, vol. 97(C), pages 414-427.
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    Cited by:

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