Intra-annual variability in the performance of an oscillating water column wave energy converter

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dc.contributor.author López, I.
dc.contributor.author Carballo, R.
dc.contributor.author Iglesias, Gregorio
dc.date.accessioned 2020-04-17T10:50:35Z
dc.date.available 2020-04-17T10:50:35Z
dc.date.issued 2020-02-03
dc.identifier.citation López, I., Carballo, R. and Iglesias, G. (2020) 'Intra-annual variability in the performance of an oscillating water column wave energy converter', Energy Conversion and Management, 207, 112536. doi: 10.1016/j.enconman.2020.112536 en
dc.identifier.volume 207 en
dc.identifier.issn 0196-8904
dc.identifier.uri http://hdl.handle.net/10468/9836
dc.identifier.doi 10.1016/j.enconman.2020.112536 en
dc.description.abstract The intra-annual variability in the wave resource is often disregarded when analysing the performance of wave energy converters (WECs), despite the fact that this variability is substantial in the majority of the areas of interest for the development of wave energy. The objective of this work is to analyse and quantify the intra-annual variability in the performance of oscillating water column (OWC) WECs through a case study in Galicia (NW Spain). To this end a three-step methodology which combines numerical and experimental modelling is followed: (i) intra-annual wave energy resource matrices are determined numerically through a high-resolution procedure; (ii) efficiency matrices of the device are determined by means of physical modelling, considering the influence of air compressibility and different turbine specifications represented through different values of turbine-induced damping; and (iii) finally, intra-annual energy capture matrices are calculated by combining the resource and efficiency matrices. It is found that the intra-annual variability in the energy capture of an OWC converter is significant, over 20% in the case study considered, albeit slightly smaller than that of the wave energy resource itself. The turbine-induced damping exerts a modulating effect over the variability in the intra-annual captured energy. Furthermore, the optimum damping which maximises the performance of the OWC converter varies from month to month. en
dc.description.sponsorship Xunta de Galicia (Consellería de Educación, Universidade e Formación Profesional - Postdoctoral grant ED481D 2019/019) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier Ltd. en
dc.rights © 2020, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. en
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Air compressibility en
dc.subject Numerical modelling en
dc.subject Oscillating water column en
dc.subject Physical modelling en
dc.subject Turbine-induced damping en
dc.subject Wave energy en
dc.title Intra-annual variability in the performance of an oscillating water column wave energy converter en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Jose Gregorio Iglesias Rodriguez, Enginering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: gregorio.iglesias@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 24 months after publication by request of the publisher. en
dc.check.date 2022-02-03
dc.date.updated 2020-04-17T10:33:08Z
dc.description.version Accepted Version en
dc.internal.rssid 502034626
dc.contributor.funder Xunta de Galicia en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Energy Conversion and Management en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress gregorio.iglesias@ucc.ie en
dc.identifier.articleid 112536 en
dc.internal.bibliocheck In press. Check vol. / issue / page range. Amend citation accordingly. en


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© 2020, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. Except where otherwise noted, this item's license is described as © 2020, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license.
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