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The self-pitch VAWT design is based on a straight-blade Darrieus wind turbine with blades that are allowed to pitch around a feathering axis, which is also parallel to the axis of rotation. The pitch angle amplitude and periodic variation are dynamically controlled by a four-bar linkage system. We only consider the efficiency at low and intermediate TSR; therefore, the pitch amplitude is chosen to be a sinusoidal function with a considerable amplitude. The results of this parametric analysis will contribute to define the guidelines for building a full-size prototype of a small-scale wind turbine of increased efficiency.<\/jats:p>","DOI":"10.1115\/1.4032794","type":"journal-article","created":{"date-parts":[[2016,2,23]],"date-time":"2016-02-23T02:31:33Z","timestamp":1456194693000},"update-policy":"https:\/\/doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":23,"title":["Geometrical Parameters Influencing the Aerodynamic Efficiency of a Small-Scale Self-Pitch High-Solidity VAWT"],"prefix":"10.1115","volume":"138","author":[{"given":"Carlos M.","family":"Xisto","sequence":"first","affiliation":[{"name":"Division of Fluid Dynamics, Department of Applied Mechanics, Chalmers University of Technology, Gothenburg SE-41296, Sweden e-mail:"}]},{"given":"Jos\u00e9 C.","family":"P\u00e1scoa","sequence":"additional","affiliation":[{"name":"Departamento de Engenharia Electromec\u00e2nica, Universidade da Beira Interior, Covilh\u00e3 6200, Portugal e-mail:"}]},{"given":"Michele","family":"Trancossi","sequence":"additional","affiliation":[{"name":"Department of Engineering and Mathematics, Sheffield Hallam University, Sheffield, South Yorkshire S1 1WB, UK e-mail:"}]}],"member":"33","published-online":{"date-parts":[[2016,3,9]]},"reference":[{"issue":"5","key":"2019100620382739100_bib1","doi-asserted-by":"publisher","first-page":"1419","DOI":"10.1016\/j.rser.2006.05.017","article-title":"Evaluation of Different Turbine Concepts for Wind Power","volume":"12","year":"2008","journal-title":"Renewable Sustainable Energy Rev."},{"issue":"9","key":"2019100620382739100_bib2","doi-asserted-by":"publisher","first-page":"2102","DOI":"10.1016\/j.renene.2010.02.013","article-title":"Energy and Exergy Efficiency Comparison of Horizontal and Vertical Axis Wind Turbines","volume":"35","year":"2010","journal-title":"Renewable Energy"},{"key":"2019100620382739100_bib3","doi-asserted-by":"publisher","DOI":"10.1115\/IMECE2014-38966","article-title":"Wind Energy Production Using an Optimized Variable Pitch Vertical Axis Rotor","volume-title":"ASME","year":"2014"},{"key":"2019100620382739100_bib4","doi-asserted-by":"publisher","DOI":"10.2514\/1.J052979","article-title":"Aerodynamics of a Small-Scale Vertical-Axis Wind Turbine With Dynamic Blade Pitching","year":"2015","journal-title":"AIAA J."},{"volume-title":"The Voith-Schneider Wind Turbine: Some Theoretical and Experimental Results on the Aerodynamics of the Voith-Schneider Wind Turbine","year":"1980","key":"2019100620382739100_bib5"},{"year":"2002","key":"2019100620382739100_bib6","article-title":"Development and Evaluation of Passive Variable-Pitch Vertical Axis Wind Turbines"},{"issue":"4","key":"2019100620382739100_bib7","doi-asserted-by":"publisher","first-page":"425","DOI":"10.1115\/1.1629751","article-title":"Numerical Implications of Solidity and Blade Number on Rotor Performance of Horizontal-Axis Wind Turbines","volume":"125","year":"2003","journal-title":"ASME J. 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