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An experimental study on the diffuser-enhanced propeller hydrokinetic turbines

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  • Nunes, Matheus M.
  • Mendes, Rafael C.F.
  • Oliveira, Taygoara F.
  • Brasil Junior, Antonio C.P.

Abstract

In the present paper, wind tunnel experiments with horizontal axis propeller hydrokinetic turbine models are carried out. The turbine performance is assessed for different diffuser configurations and operational ranges. The present experiments evaluate the use of two different geometries of rear diffusers to enhance the power output of the free flow machine. The present paper reports an increase of the power coefficient of about 48%–79%. A discussion about the use of the diffuser technology is pointed out in a framework of a concept of the minimization of the volume of material contained in the turbine parts. It represents an important result that has to be taken into account in the design of hydrokinetic turbines.

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  • Nunes, Matheus M. & Mendes, Rafael C.F. & Oliveira, Taygoara F. & Brasil Junior, Antonio C.P., 2019. "An experimental study on the diffuser-enhanced propeller hydrokinetic turbines," Renewable Energy, Elsevier, vol. 133(C), pages 840-848.
  • Handle: RePEc:eee:renene:v:133:y:2019:i:c:p:840-848
    DOI: 10.1016/j.renene.2018.10.056
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    References listed on IDEAS

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    Cited by:

    1. Nunes, Matheus M. & Brasil Junior, Antonio C.P. & Oliveira, Taygoara F., 2020. "Systematic review of diffuser-augmented horizontal-axis turbines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    2. Faruk Guner & Hilmi Zenk, 2020. "Experimental, Numerical and Application Analysis of Hydrokinetic Turbine Performance with Fixed Rotating Blades," Energies, MDPI, vol. 13(3), pages 1-15, February.
    3. Mohammed Baqer Zaki Yahya Al-quraishi & Shamsul Sarip & Hazilah Mad Kaidi & Jorge Alfredo Ardila-Rey & Firdaus Muhammad-Sukki, 2022. "A CFD Analysis for Novel Close-Ended Deflector for Vertical Water Turbines," Sustainability, MDPI, vol. 14(5), pages 1-19, February.
    4. Mohammadi, S. & Hassanalian, M. & Arionfard, H. & Bakhtiyarov, S., 2020. "Optimal design of hydrokinetic turbine for low-speed water flow in Golden Gate Strait," Renewable Energy, Elsevier, vol. 150(C), pages 147-155.
    5. Niebuhr, C.M. & van Dijk, M. & Neary, V.S. & Bhagwan, J.N., 2019. "A review of hydrokinetic turbines and enhancement techniques for canal installations: Technology, applicability and potential," Renewable and Sustainable Energy Reviews, Elsevier, vol. 113(C), pages 1-1.
    6. Jonathan Aguilar & Ainhoa Rubio-Clemente & Laura Velasquez & Edwin Chica, 2019. "Design and Optimization of a Multi-Element Hydrofoil for a Horizontal-Axis Hydrokinetic Turbine," Energies, MDPI, vol. 12(24), pages 1-18, December.
    7. Wei Zang & Yuan Zheng & Yuquan Zhang & Xiangfeng Lin & Yanwei Li & Emmanuel Fernandez-Rodriguez, 2022. "Numerical Investigation on a Diffuser-Augmented Horizontal Axis Tidal Stream Turbine with the Entropy Production Theory," Mathematics, MDPI, vol. 11(1), pages 1-18, December.
    8. Puertas-Frías, Carmen M. & Willson, Clinton S. & García-Salaberri, Pablo A., 2022. "Design and economic analysis of a hydrokinetic turbine for household applications," Renewable Energy, Elsevier, vol. 199(C), pages 587-598.

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