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Development of two-way diffuser for fluid energy conversion system

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  • Setoguchi, Toshiaki
  • Shiomi, Norimasa
  • Kaneko, Kenji

Abstract

An experimental study was carried out to develop a new type of two-way diffuser suitable for a fluid flow energy conversion system. It is known that the power available from the fluid flow is proportional to the cube of the free stream velocity of the flow. Therefore, in order to take higher power output from the fluid flow, it is very important to construct a suitable system to increase the flow velocity. For a wind turbine, it has been reported that the speed of wind passing through it is dramatically increased by the use of a diffuser with a brim around the turbine. In this study, a new type of two-way diffuser suitable for a flow periodically changing its direction, such as a tidal current, was developed, applying the system to accelerate the wind speed for the wind turbine. The effects of the brim height and the outside body shape on the diffuser performance were experimentally investigated by measurement of the pressure and the velocity distributions along the center axis of the diffuser and around the diffuser. The present study is the first one to clarify the effect of these on diffuser performance.

Suggested Citation

  • Setoguchi, Toshiaki & Shiomi, Norimasa & Kaneko, Kenji, 2004. "Development of two-way diffuser for fluid energy conversion system," Renewable Energy, Elsevier, vol. 29(10), pages 1757-1771.
    • Handle: RePEc:eee:renene:v:29:y:2004:i:10:p:1757-1771
    DOI: 10.1016/j.renene.2004.02.007
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    1. Clément, Alain & McCullen, Pat & Falcão, António & Fiorentino, Antonio & Gardner, Fred & Hammarlund, Karin & Lemonis, George & Lewis, Tony & Nielsen, Kim & Petroncini, Simona & Pontes, M. -Teresa & Sc, 2002. "Wave energy in Europe: current status and perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 6(5), pages 405-431, October.
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    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. Borg, Mitchell G. & Xiao, Qing & Allsop, Steven & Incecik, Atilla & Peyrard, Christophe, 2020. "A numerical performance analysis of a ducted, high-solidity tidal turbine," Renewable Energy, Elsevier, vol. 159(C), pages 663-682.
    3. Gaden, David L.F. & Bibeau, Eric L., 2010. "A numerical investigation into upstream boundary-layer interruption and its potential benefits for river and ocean kinetic hydropower," Renewable Energy, Elsevier, vol. 35(10), pages 2270-2278.
    4. Malipeddi, A.R. & Chatterjee, D., 2012. "Influence of duct geometry on the performance of Darrieus hydroturbine," Renewable Energy, Elsevier, vol. 43(C), pages 292-300.
    5. Charles Rajesh Kumar J & Vinod Kumar D & MA Majid, 2019. "Wind energy programme in India: Emerging energy alternatives for sustainable growth," Energy & Environment, , vol. 30(7), pages 1135-1189, November.
    6. T., Micha Premkumar & Chatterjee, Dhiman, 2015. "Computational analysis of flow over a cascade of S-shaped hydrofoil of fully reversible pump-turbine used in extracting tidal energy," Renewable Energy, Elsevier, vol. 77(C), pages 240-249.
    7. Belloni, C.S.K. & Willden, R.H.J. & Houlsby, G.T., 2017. "An investigation of ducted and open-centre tidal turbines employing CFD-embedded BEM," Renewable Energy, Elsevier, vol. 108(C), pages 622-634.
    8. Gaden, David L.F. & Bibeau, Eric L., 2010. "A numerical investigation into the effect of diffusers on the performance of hydro kinetic turbines using a validated momentum source turbine model," Renewable Energy, Elsevier, vol. 35(6), pages 1152-1158.
    9. Tunio, Intizar Ali & Shah, Madad Ali & Hussain, Tanweer & Harijan, Khanji & Mirjat, Nayyar Hussain & Memon, Abdul Hameed, 2020. "Investigation of duct augmented system effect on the overall performance of straight blade Darrieus hydrokinetic turbine," Renewable Energy, Elsevier, vol. 153(C), pages 143-154.
    10. Khan, M.J. & Bhuyan, G. & Iqbal, M.T. & Quaicoe, J.E., 2009. "Hydrokinetic energy conversion systems and assessment of horizontal and vertical axis turbines for river and tidal applications: A technology status review," Applied Energy, Elsevier, vol. 86(10), pages 1823-1835, October.
    11. Kai-Wern Ng & Wei-Haur Lam & Khai-Ching Ng, 2013. "2002–2012: 10 Years of Research Progress in Horizontal-Axis Marine Current Turbines," Energies, MDPI, vol. 6(3), pages 1-30, March.

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