Urban wind energy conversion: the potential of ducted turbines

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Abstract

The prospects for urban wind power are discussed. A roof-mounted ducted wind turbine, which uses pressure differentials created by wind flow around a building, is proposed as an alternative to more conventional approaches. Outcomes from tests at model and prototype scale are described, and a simple mathematical model is presented. Predictions from the latter suggest that a ducted turbine can produce very high specific power outputs, going some way to offsetting its directional sensitivity. Further predictions using climate files are made to assess annual energy output and seasonal variations, with a conventional small wind turbine and a photovoltaic panel as comparators. It is concluded that ducted turbines have significant potential for retro-fitting to existing buildings, and have clear advantages where visual impact and safety are matters of concern.
Original languageEnglish
Pages (from-to)1157-1163
Number of pages6
JournalRenewable Energy
Volume33
Issue number6
Publication statusPublished - 1 Jun 2008

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Keywords

  • urban wind
  • ducted turbine
  • buildings
  • pressure coefficients

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