An upper size of vertical axis wind turbines
Article first published online: 2 AUG 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Volume 17, Issue 10, pages 1623–1629, October 2014
How to Cite
2014), An upper size of vertical axis wind turbines, Wind Energy, 17, pages 1623–1629, doi: 10.1002/we.1655and (
- Issue published online: 3 SEP 2014
- Article first published online: 2 AUG 2013
- Manuscript Accepted: 25 JUN 2013
- Manuscript Revised: 1 MAY 2013
- Manuscript Received: 3 AUG 2012
- upper size
The scaling behaviour of a straight-bladed vertical axis wind turbine is considered. A scaling scheme is described that, in the presence of a wind shear profile, aims at leaving the material stresses of the scaled construction unchanged. On the basis of a recent 200 kW three-bladed H-rotor design, a structural upper size of the turbine is proposed, this size being the scale at which the gravitational force starts to become important. As gravity has a much worse scaling behaviour than the aerodynamic and centrifugal forces, the construction work will become increasingly more difficult above this scale. The upper size is estimated to be around 30 MW. Copyright © 2013 John Wiley & Sons, Ltd.