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

Yuji Ohya and Takashi Karasudani
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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

Energies, 2010, vol. 3, issue 4, 1-16

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 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2010
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (63)

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