Experimental investigation of a variable geometry vertical axis wind turbine
dc.contributor.author | Prince, Simon A. | |
dc.contributor.author | Badalamenti, Carmine | |
dc.contributor.author | Georgiev, Dimitar | |
dc.date.accessioned | 2020-07-16T08:38:02Z | |
dc.date.available | 2020-07-16T08:38:02Z | |
dc.date.issued | 2020-07-14 | |
dc.description.abstract | An 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.citation | Prince SA, Badalamenti C, Georgiev D. (2020) Experimental investigation of a variable geometry vertical axis wind turbine. Wind Engineering, Volume 45, Issie 4, 2021, pp. 904-920 | en_UK |
dc.identifier.issn | 0309-524X | |
dc.identifier.uri | https://doi.org/10.1177/0309524X20935134 | |
dc.identifier.uri | https://dspace.lib.cranfield.ac.uk/handle/1826/15553 | |
dc.language.iso | en | en_UK |
dc.publisher | SAGE | en_UK |
dc.rights | Attribution-NonCommercial 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | * |
dc.subject | Vertical axis wind turbine | en_UK |
dc.subject | Farrah turbine | en_UK |
dc.subject | Savonius turbine | en_UK |
dc.subject | aerodynamics | en_UK |
dc.title | Experimental investigation of a variable geometry vertical axis wind turbine | en_UK |
dc.type | Article | en_UK |
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