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dc.contributor.authorAl-Abadi, A.
dc.contributor.authorErtunç, Özgür
dc.contributor.authorWeber, H.
dc.contributor.authorDelgado, A.
dc.date.accessioned2015-12-28T11:33:22Z
dc.date.available2015-12-28T11:33:22Z
dc.date.issued2015
dc.identifier.issn1941-7012
dc.identifier.urihttp://hdl.handle.net/10679/1353
dc.identifier.urihttp://scitation.aip.org/content/aip/journal/jrse/7/2/10.1063/1.4918748
dc.descriptionDue to copyright restrictions, the access to the full text of this article is only available via subscription.en_US
dc.description.abstractAn aerodynamic shape optimization method for a horizontal axis wind turbine is developed and verified through experimentation with a laboratory-scale wind turbine. Our method is based on matching the rotor's and the coupled generator's torque. Prior to shape optimization, an initial rotor design is established with a hybrid use of Schmitz and blade element momentum theories. The experimental verification of the developed method is conducted with a small-scale wind turbine; thus, the operating Reynolds number is one order of magnitude lower than large-scale wind turbines. Therefore, a high-lift low-Re airfoil, namely, SG6043, is selected for the blade along the whole span. The shape is optimized by determining the optimum chord and cumulative pitch angle distributions by manipulating the tapering and twisting of the blade. The objective of the optimization is to maximize the turbine's power coefficient Cp , while maintaining the torque equal to that of the generator. The generator's characteristics are found through experimentations which are conducted apart from the wind tunnel experiments. During the optimization process, the local aerodynamic forces on the blade are calculated by interfacing the optimization program with XFOIL; thus, the torque and power can be calculated for the rotor at each iteration step. The optimized turbine performance is evaluated under a design and off-design operating condition. The performance verification experiments are carried out in the wind tunnel with a specially designed setup. A comparison of the measured and computed performance shows good agreement.en_US
dc.language.isoengen_US
dc.publisherAIP Publishingen_US
dc.relation.ispartofJournal of Renewable and Sustainable Energy
dc.rightsrestrictedAccess
dc.titleA design and optimization method for matching the torque of the wind turbinesen_US
dc.typeArticleen_US
dc.peerreviewedyesen_US
dc.publicationstatuspublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID239221
dc.contributor.ozuauthorErtunç, Özgür
dc.identifier.volume7
dc.identifier.issue2
dc.identifier.wosWOS:000353834300029
dc.identifier.doi10.1063/1.4918748
dc.subject.keywordsTorqueen_US
dc.subject.keywordsWind turbinesen_US
dc.subject.keywordsAerodynamicsen_US
dc.subject.keywordsOptimizationen_US
dc.subject.keywordsReynolds stress modelingen_US
dc.identifier.scopusSCOPUS:2-s2.0-84928501283
dc.contributor.authorMale1


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