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An experimental investigation of design parameters for pico-hydro Turgo turbines using a response surface methodology

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  • Gaiser, Kyle
  • Erickson, Paul
  • Stroeve, Pieter
  • Delplanque, Jean-Pierre

Abstract

Millions of off-grid homes in remote areas around the world have access to pico-hydro (5 kW or less) resources that are undeveloped due to prohibitive installed costs ($/kW). The Turgo turbine, a hydroelectric impulse turbine generally suited for medium to high head applications, has gained renewed attention in research due to its potential applicability to such sites. Nevertheless, published literature about the Turgo turbine is limited and indicates that current theory and experimental knowledge do not adequately explain the effects of certain design parameters, such as nozzle diameter, jet inlet angle, number of blades, and blade speed on the turbine's efficiency. In this study, these parameters are used in a three-level (34) central composite response surface experiment. A low-cost Turgo turbine is built and tested from readily available materials and a second order regression model is developed to predict its efficiency as a function of each parameter above and their interactions. The effects of blade orientation angle and jet impact location on efficiency are also investigated and experimentally found to be of relatively little significance to the turbine. The purpose of this study is to establish empirical design guidelines that enable small hydroelectric manufacturers and individuals to design low-cost efficient Turgo Turbines that can be optimized to a specific pico-hydro site. The results are also expressed in dimensionless parameters to allow for potential scaling to larger systems and manufacturers.

Suggested Citation

  • Gaiser, Kyle & Erickson, Paul & Stroeve, Pieter & Delplanque, Jean-Pierre, 2016. "An experimental investigation of design parameters for pico-hydro Turgo turbines using a response surface methodology," Renewable Energy, Elsevier, vol. 85(C), pages 406-418.
    • Handle: RePEc:eee:renene:v:85:y:2016:i:c:p:406-418
    DOI: 10.1016/j.renene.2015.06.049
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    References listed on IDEAS

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    Cited by:

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    2. Kadier, Abudukeremu & Kalil, Mohd Sahaid & Pudukudy, Manoj & Hasan, Hassimi Abu & Mohamed, Azah & Hamid, Aidil Abdul, 2018. "Pico hydropower (PHP) development in Malaysia: Potential, present status, barriers and future perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P2), pages 2796-2805.
    3. Semmari, Hamza & Mauran, Sylvain & Stitou, Driss, 2017. "Experimental validation of an analytical model of hydraulic motor operating under variable electrical loads and pressure heads," Applied Energy, Elsevier, vol. 206(C), pages 1309-1320.
    4. Benzon, D.S. & Aggidis, G.A. & Anagnostopoulos, J.S., 2016. "Development of the Turgo Impulse turbine: Past and present," Applied Energy, Elsevier, vol. 166(C), pages 1-18.
    5. Suyesh, Bhattarai & Parag, Vichare & Keshav, Dahal & Ahmed, Al Makky & Abdul-Ghani, Olabi, 2019. "Novel trends in modelling techniques of Pelton Turbine bucket for increased renewable energy production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 112(C), pages 87-101.
    6. Bouvant, Maël & Betancour, Johan & Velásquez, Laura & Rubio-Clemente, Ainhoa & Chica, Edwin, 2021. "Design optimization of an Archimedes screw turbine for hydrokinetic applications using the response surface methodology," Renewable Energy, Elsevier, vol. 172(C), pages 941-954.
    7. Jawahar, C.P. & Michael, Prawin Angel, 2017. "A review on turbines for micro hydro power plant," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 882-887.

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