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A Shrouded Wind Turbine Generating High Output Power with Wind-lens Technology

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  • Yuji Ohya

    (Research Institute for Applied Mechanics, Kyushu University/ Kasuga 816-8580, Japan)

  • Takashi Karasudani

    (Research Institute for Applied Mechanics, Kyushu University/ Kasuga 816-8580, Japan)

Abstract

We have developed a new wind turbine system that consists of a diffuser shroud with a broad-ring brim at the exit periphery and a wind turbine inside it. The shrouded wind turbine with a brimmed diffuser has demonstrated power augmentation by a factor of about 2–5 compared with a bare wind turbine, for a given turbine diameter and wind speed. This is because a low-pressure region, due to a strong vortex formation behind the broad brim, draws more mass flow to the wind turbine inside the diffuser shroud.

Suggested Citation

  • Yuji Ohya & Takashi Karasudani, 2010. "A Shrouded Wind Turbine Generating High Output Power with Wind-lens Technology," Energies, MDPI, vol. 3(4), pages 1-16, March.
    • Handle: RePEc:gam:jeners:v:3:y:2010:i:4:p:634-649:d:7726
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    References listed on IDEAS

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    1. Bet, F & Grassmann, H, 2003. "Upgrading conventional wind turbines," Renewable Energy, Elsevier, vol. 28(1), pages 71-78.
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