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Self-starting capability of a Darrieus turbine.

Dominy, R. and Lunt, P. and Bickerdyke, A. and Dominy, J (2007) 'Self-starting capability of a Darrieus turbine.', Proceedings of the I MECH E part A : journal of power and energy., 221 (1). pp. 111-120.

Abstract

Darrieus-type vertical axis wind turbines have a number of potential advantages for small-scale and domestic applications. For such applications, the issues of cost and reliability are paramount and hence simplicity of design of the structure, the generator, and any control system is vital. A particular concern relating to Darrieus turbines is their potential to self-start. If, as has been suggested by several authors, they require external assistance to start then much of their advantage is lost. The purpose of the study described here is, therefore, to investigate their starting performance through the development and validation of computational simulation and to determine the parameters that govern the capability to self-start. A case study is presented based upon the use of the widely used and well documented, symmetrical NACA 0012 turbine blade profile. It is shown that a lightly loaded, three-bladed rotor always has the potential to self start under steady wind conditions, whereas the starting of a two-bladed device is dependent upon its initial starting orientation.

Item Type:Article
Keywords:Vertical axis wind turbine, Darrieus, Self-starting.
Full text:PDF - Published Version (775Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1243/09576509JPE340
Publisher statement:© Dominy, R. and Lunt, P. and Bickerdyke, A. and Dominy, J., 2007. The definitive, peer reviewed and edited version of this article is published in Proceedings of the I MECH E part A : journal of power and energy, 221, 1, pp. 111-120, 10.1243/09576509JPE340
Record Created:18 Nov 2008
Last Modified:19 Aug 2011 16:41

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