OPTIMIZATION OF THE PERFORMANCE OF THE VARIABLE PITCH VERTICAL AXIS WIND TURBINE.

Zervos, A; Dessipris, S; Athanassiadis, N

dc.contributor.author	Zervos, A	en
dc.contributor.author	Dessipris, S	en
dc.contributor.author	Athanassiadis, N	en
dc.date.accessioned	2014-03-01T02:47:38Z
dc.date.available	2014-03-01T02:47:38Z
dc.date.issued	1985	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33302
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0022241766&partnerID=40&md5=303cdb8673c37219668ed25c7641bdaa	en
dc.subject.other	AERODYNAMICS - Design	en
dc.subject.other	MATHEMATICAL MODELS	en
dc.subject.other	OPTIMIZATION	en
dc.subject.other	TURBOMACHINERY - Performance	en
dc.subject.other	MAXIMUM OBTAINABLE POSITIVE TORQUE	en
dc.subject.other	REYNOLDS NUMBER	en
dc.subject.other	SOLIDITY	en
dc.subject.other	TIP SPEED RATIO	en
dc.subject.other	VARIABLE PITCH	en
dc.subject.other	VERTICAL AXIS WIND TURBINES	en
dc.subject.other	WIND TURBINES	en
dc.title	OPTIMIZATION OF THE PERFORMANCE OF THE VARIABLE PITCH VERTICAL AXIS WIND TURBINE.	en
heal.type	conferenceItem	en
heal.publicationDate	1985	en
heal.abstract	The optimized performance of a two-dimenisional variable pitch Vertical Axis Wind Turbine (VAWT) is investigated using two different theoretical models: the multiple streamtube model and a vortex model. Both models include viscous effects (profile drag and static blade stall) through the use of airfoil section data. For each blade position, and for a given set of rotor characteristics (solidity, airfoil section) and operating conditions (tip speed ratio, Reynolds number), the maximum obtainable positive torque is found and the corresponding blade pitch angle is calculated. The influence of tip speed ratio, solidity and Reynolds number on the optimal pitch variation is calculated and the corresponding performance curves are produced. Comparison is made with the results of the VAWT without pitch vatiation and with simusoidal pitch variation at different amplitudes.	en
heal.publisher	H. S. Stephens & Associates, Bedford, Engl	en
heal.journalName	Commission of the European Communities, (Report) EUR	en
dc.identifier.spage	411	en
dc.identifier.epage	416	en