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

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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 http://hdl.handle.net/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


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