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

doi:10.3390/en3040634

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Energies 2010, 3(4), 634-649; doi:10.3390/en3040634

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

Yuji Ohya* and Takashi Karasudani

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

* Author to whom correspondence should be addressed.

Received: 20 January 2010; in revised form: 6 February 2010 / Accepted: 27 February 2010 / Published: 31 March 2010

(This article belongs to the Special Issue Wind Energy)

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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.

Keywords: wind turbine; diffuser; brim; power augmentation; wind tunnel experiment

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Cite This Article

MDPI and ACS Style

Ohya, Y.; Karasudani, T. A Shrouded Wind Turbine Generating High Output Power with Wind-lens Technology. Energies 2010, 3, 634-649.

AMA Style

Ohya Y, Karasudani T. A Shrouded Wind Turbine Generating High Output Power with Wind-lens Technology. Energies. 2010; 3(4):634-649.

Chicago/Turabian Style

Ohya, Yuji; Karasudani, Takashi. 2010. "A Shrouded Wind Turbine Generating High Output Power with Wind-lens Technology." Energies 3, no. 4: 634-649.

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