A study on the effects of wave spectra on wave energy conversions

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dc.contributor.author Prendergast, James
dc.contributor.author Li, Mingfang
dc.contributor.author Sheng, Wanan
dc.date.accessioned 2018-12-12T13:01:17Z
dc.date.available 2018-12-12T13:01:17Z
dc.date.issued 2018
dc.identifier.citation Prendergast, J., Li, M. and Sheng, W. (2018) 'A Study on the Effects of Wave Spectra on Wave Energy Conversions', IEEE Journal of Oceanic Engineering, In Press, (13 pp). doi: 10.1109/JOE.2018.2869636 en
dc.identifier.startpage 1 en
dc.identifier.endpage 13 en
dc.identifier.issn 0364-9059
dc.identifier.uri http://hdl.handle.net/10468/7204
dc.identifier.doi 10.1109/JOE.2018.2869636
dc.description.abstract This research work presents an investigation into the effects of wave spectra on energy conversion for wave energy converters and shows it may be important what theoretical spectrum should be used for a better assessment of a wave energy converter (WEC) in the given sea conditions in a proposed deployment site. To illustrate the problem and the solution, a slightly modified Reference Model 3 (RM3) self-referencing floating point absorber device is used for examining the effects of spectrum types on wave energy conversion. The compared wave spectra include the most used theoretical wave spectra, such as the standard JONSWAP and Bretschneider spectra, as well as the real sea spectrum from field measurements. From the analysis it is shown that the modified RM3 WEC extracts a similar amount of energy from the recorded sea conditions (measured at the AMETS site 2010) when the device is optimized to both the Bretschneider spectrum and the real sea spectrum while the use of the JONSWAP spectrum for optimization leads to an over-prediction in the annual energy production of 16.5%. This may be because, in many practical applications for wave energy development, the JONSWAP spectrum is often preferred by the developers for assessing the device power performance. However, the use of the narrower JONSWAP spectrum (compared to the Bretschneider spectrum) may lead to inaccurate optimization results and power performance data for the device. Therefore, using the correct wave spectrum shapes in the assessment and optimization of a device is suggested for a more accurate assessment and a better understanding of the overall power performance of the device. en
dc.description.sponsorship China Scholarship Council (CSC 201608420160); Hubei Provincial Department of Education (Q20171110); Hubei Province Key Laboratory of Systems Science in Metallurgical Process (Wuhan University of Science and Technology, Z201503); en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en
dc.relation.uri https://ieeexplore.ieee.org/document/8488539
dc.rights © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. en
dc.subject Sea measurements en
dc.subject Energy conversion en
dc.subject Optimization en
dc.subject Meteorology en
dc.subject Energy measurement en
dc.subject Performance evaluation en
dc.subject Oceans en
dc.subject Annual energy production (AEP) en
dc.subject Power performance en
dc.subject Wave climate en
dc.subject Wave energy conversion en
dc.title A study on the effects of wave spectra on wave energy conversions en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Wanan Sheng, School Of Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: w.sheng@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-12-12T12:46:59Z
dc.description.version Accepted Version en
dc.internal.rssid 465294336
dc.contributor.funder China Scholarship Council en
dc.contributor.funder Hubei Provincial Department of Education en
dc.contributor.funder Wuhan University of Science and Technology en
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle IEEE Journal Of Oceanic Engineering en
dc.internal.copyrightchecked No !!CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress w.sheng@ucc.ie en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2302/IE/Marine Renewable Energy Ireland (MaREI) - The SFI Centre for Marine Renewable Energy Research/ en

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