Effects of Upstream Buildings on the Performance of a Synergistic Roof-and-Diffuser Augmentation System for Cross Flow Wind Turbines

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dc.contributor.authorZanforlin, Stefania
dc.contributor.authorLetizia, Stefano
dc.contributor.utdAuthorLetizia, Stefano
dc.date.accessioned2020-07-22T21:18:14Z
dc.date.available2020-07-22T21:18:14Z
dc.date.issued2018-12-10
dc.descriptionDue to copyright restrictions and/or publisher's policy full text access from Treasures at UT Dallas is limited to current UTD affiliates (use the provided Link to Article).
dc.description.abstractIn a previous work we investigated the effectiveness of combining the concentration effects generated by a dual-pitched roof and a convergent-divergent semi-diffuser placed over a cross flow turbine (CFT), which is rooftop mounted with horizontal shaft running close to the roof ridge. By means of 2D CFD we now assess the effects of the upstream buildings on the performance of this concentration system. Three different urban layouts are simulated via a challenging fully-resolved URANS approach that gives unprecedented insight into the complex interactions of the flow around buildings, diffuser and turbine's blades. A promising power augmentation of 40% with respect to the case without diffuser are obtained and the mechanism behind this performance enhancement are analysed. The beneficial effect of the diffuser on the torque fluctuations damping (similar to 60%) is also discussed. Important remarks on the load control strategy for diffuser-augmented CFT are finally presented.
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.identifier.bibliographicCitationZanforlin, Stefania, and Stefano Letizia. 2019. "Effects of upstream buildings on the performance of a synergistic roof-and-diffuser augmentation system for cross flow wind turbines." Journal of Wind Engineering and Industrial Aerodynamics 184: 329-341, doi: 10.1016/j.jweia.2018.11.029
dc.identifier.issn0167-6105
dc.identifier.urihttp://dx.doi.org/10.1016/j.jweia.2018.11.029
dc.identifier.urihttps://hdl.handle.net/10735.1/8731
dc.identifier.volume184
dc.language.isoen
dc.publisherElsevier Science BV
dc.rights©2018 Elsevier Ltd. All rights reserved.
dc.source.journalJournal of Wind Engineering and Industrial Aerodynamics
dc.subjectWind turbines
dc.subjectDiffusers
dc.subjectUrban ecology (Sociology)
dc.subjectElectric power distribution
dc.titleEffects of Upstream Buildings on the Performance of a Synergistic Roof-and-Diffuser Augmentation System for Cross Flow Wind Turbines
dc.type.genrearticle

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