Investigations of a building-integrated ducted wind turbine module

R.K.W. Dannecker, A.D. Grant

Research output: Contribution to journalArticle

Abstract

So far, wind energy has not played a major role in the group of technologies for embedded generation in the built environment. However, the wind flow around conventional tall buildings generates differential pressures, which may cause an enhanced mass flow through a building-integrated turbine. As a first step, a prototype of a small-scale ducted wind turbine has been developed and tested, which seems to be feasible for integration into the leading roof edge of such a building. Here an experimental and numerical investigation of the flow through building-integrated ducting is presented. Pressure and wind speed measurements have been carried out on a wind tunnel model at different angles of incident wind, and different duct configurations have been tested. It was confirmed that wind speeds up to 30% higher than in the approaching freestream may be induced in the duct, and good performance was obtained for angles of incident wind up to ±60°. The experimental work proceeded in parallel with computational fluid dynamics (CFD) modelling. The geometry of the system was difficult to represent to the required level of accuracy, and modelling was restricted to a few simple cases, for which the flow field in the building-integrated duct was compared with experimental results. Generally good agreement was obtained, indicating that CFD techniques could play a major role in the design process. Predicted power of the proposed device suggests that it will compare favourably with conventional small wind turbines and photovoltaics in an urban environment.
Original languageEnglish
Pages (from-to)53-71
Number of pages18
JournalWind Energy
Volume5
Issue number1
DOIs
Publication statusPublished - 2002

Fingerprint

Wind turbines
Ducts
Computational fluid dynamics
Tall buildings
Roofs
Wind power
Wind tunnels
Flow fields
Turbines
Geometry

Keywords

  • renewable energy
  • wind turbine
  • ducting
  • built environment
  • wind tunnel
  • embedded generation
  • wind energy

Cite this

Dannecker, R.K.W. ; Grant, A.D. / Investigations of a building-integrated ducted wind turbine module. In: Wind Energy. 2002 ; Vol. 5, No. 1. pp. 53-71.
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Investigations of a building-integrated ducted wind turbine module. / Dannecker, R.K.W.; Grant, A.D.

In: Wind Energy, Vol. 5, No. 1, 2002, p. 53-71.

Research output: Contribution to journalArticle

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