Experimental investigation of a variable geometry vertical axis wind turbine

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dc.contributor.authorPrince, Simon A.
dc.contributor.authorBadalamenti, Carmine
dc.contributor.authorGeorgiev, Dimitar
dc.date.accessioned2020-07-16T08:38:02Z
dc.date.available2020-07-16T08:38:02Z
dc.date.issued2020-07-14
dc.description.abstractAn experimental study is presented on the performance of a vertical axis wind turbine with variable blade geometry of the design developed by Austin Farrah. This is experimentally compared with the performance of a correspondingly sized Bach-type Savonius turbine using the same electrical generator and measurement instrumentation in a wind tunnel. Experiments were performed for Reynolds numbers, based on blade chord, in the range 5 × 103 to 1 × 105, and for blade settings between −40° and +40o. The study shows that for the tip speed ratios that have been investigated, the Farrah vertical axis wind turbine design can only marginally outperform a corresponding two-bladed Bach-type Savonius turbine and then only when its blades are set to 40° pitch angle. The presence of a small inner cylinder, which rotates with the turbine, does not enhance its performance due to the fact that it is immersed in an extensive column of relatively static air.en_UK
dc.identifier.citationPrince SA, Badalamenti C, Georgiev D. (2020) Experimental investigation of a variable geometry vertical axis wind turbine. Wind Engineering, Volume 45, Issie 4, 2021, pp. 904-920en_UK
dc.identifier.issn0309-524X
dc.identifier.urihttps://doi.org/10.1177/0309524X20935134
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15553
dc.language.isoenen_UK
dc.publisherSAGEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectVertical axis wind turbineen_UK
dc.subjectFarrah turbineen_UK
dc.subjectSavonius turbineen_UK
dc.subjectaerodynamicsen_UK
dc.titleExperimental investigation of a variable geometry vertical axis wind turbineen_UK
dc.typeArticleen_UK

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