Power capture performance of hybrid wave farms combining different wave energy conversion technologies: The H-factor

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dc.contributor.authorZheng, Siming
dc.contributor.authorZhang, Yongliang
dc.contributor.authorIglesias, Gregorio
dc.contributor.funderEuropean Commissionen
dc.contributor.funderChina Postdoctoral Science Foundationen
dc.contributor.funderNational Natural Science Foundation of Chinaen
dc.date.accessioned2020-05-25T10:30:53Z
dc.date.available2020-05-25T10:30:53Z
dc.date.issued2020-05-24
dc.description.abstractIn this paper we consider hybrid wave farms, in which different types of WEC are combined, through a case study involving oscillating water columns (OWCs) and point-absorbers (PAs). A new parameter, called “H-factor”, is introduced to compare hybrid (multi-type) and conventional (single-type) wave farms in terms of wave power capture. We develop an ad hoc semi-analytical model to calculate the H-factor in a computationally efficient manner, and apply it to investigate how the H-factor and, consequently, the power capture, depend on: (i) the spacing and layout of the WECs, (ii) the type of WEC technology, and (iii) the wave conditions. We discuss the influence of these factors and, in the process, show that the H-factor is a valuable decision-aid tool. For specified wave conditions and layout limitations, a conventional wave farm may not be the most efficient option as a result of a destructive array effect, whereas a hybrid farm can be more efficient if a constructive hybrid effect occurs (if the H-factor value is above unity). This constructive hybrid effect can even overcome the destructive array effect for specified cases, demonstrating the potential advantage of hybrid wave farms relative to conventional wave farms.en
dc.description.sponsorshipEuropean Commission (Intelligent Community Energy (ICE), INTERREG V FCE Contract No. 5025); China Postdoctoral Science Foundation (Grant No. 2016M601041; 2017T100085); National Natural Science Foundation of China (51679124; 51879144)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationZheng, S., Zhang, Y. and Iglesias, G. (2020) ‘Power capture performance of hybrid wave farms combining different wave energy conversion technologies: The H-factor’, Energy. doi: 10.1016/j.energy.2020.117920en
dc.identifier.doi10.1016/j.energy.2020.117920en
dc.identifier.eissn1873-6785
dc.identifier.issn0360-5442
dc.identifier.journaltitleEnergyen
dc.identifier.urihttps://hdl.handle.net/10468/10029
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.subjectOscillating water columnen
dc.subjectPoint-absorberen
dc.subjectCapture width factoren
dc.subjectWave energyen
dc.subjectWave poweren
dc.subjectWave farmen
dc.titlePower capture performance of hybrid wave farms combining different wave energy conversion technologies: The H-factoren
dc.typeArticle (peer-reviewed)en
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