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

Simple item page
dc.contributor.authorLópez, I.
dc.contributor.authorCarballo, R.
dc.contributor.authorIglesias, Gregorio
dc.contributor.funderXunta de Galiciaen
dc.date.accessioned2020-04-17T10:50:35Z
dc.date.available2020-04-17T10:50:35Z
dc.date.issued2020-02-03
dc.date.updated2020-04-17T10:33:08Z
dc.description.abstractThe 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.sponsorshipXunta de Galicia (Consellería de Educación, Universidade e Formación Profesional - Postdoctoral grant ED481D 2019/019)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid112536en
dc.identifier.citationLópez, 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.2020.112536en
dc.identifier.doi10.1016/j.enconman.2020.112536en
dc.identifier.issn0196-8904
dc.identifier.journaltitleEnergy Conversion and Managementen
dc.identifier.urihttps://hdl.handle.net/10468/9836
dc.identifier.volume207en
dc.language.isoenen
dc.publisherElsevier 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.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectAir compressibilityen
dc.subjectNumerical modellingen
dc.subjectOscillating water columnen
dc.subjectPhysical modellingen
dc.subjectTurbine-induced dampingen
dc.subjectWave energyen
dc.titleIntra-annual variability in the performance of an oscillating water column wave energy converteren
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
200103-Manuscript-R1.pdf
Size:
1.82 MB
Format:
Adobe Portable Document Format
Description:
Accepted Version
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Environmental Research Institute - Journal Articles
Centre for Marine and Renewable Energy (MaREI) - Journal Articles
Civil and Environmental Engineering - Journal articles