An Improved Rotor Design for a Diffuser Augmented Wind Turbine

van Dorst, F.A.

An Improved Rotor Design for a Diffuser Augmented Wind Turbine

Improvement of the DONQI URBAN WINDMILL

Master thesis (2011)

Authors

F.A. van Dorst

Contributors

G.J.W. van Bussel (mentor)

K. van der Heijden (mentor)

Programme

Sustainable Energy Technology

Windenergy

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Published Date

10-01-2011

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Programme

Sustainable Energy Technology

Abstract

The polluting fossil fuels are diminishing and becoming more and more expensive. The trias energetica, Figure 1, states that besides reducing the energy demand and using fossil fuels cleaner, renewable energy technologies are the solution to this problem. One of these renewable energy technologies is small-scale wind energy. The DONQI URBAN WINDMILL is a so-called urban turbine, a small roof mounted wind turbine. Moreover, the DONQI URBAN WINDMILL is a diffuser augmented wind turbine (DAWT), a wind turbine embedded in annular wing shaped diffuser. This diffuser has the function of augmenting the flow through the wind turbine.

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