Design and experimental tests for novel shapes of floating OWC wave energy converters with the additional purpose of breakwater

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dc.contributor.authorLyu, Xiangcheng
dc.contributor.authorMi, Chenhao
dc.contributor.authorCollions, Stan
dc.contributor.authorChen, Wenchuang
dc.contributor.authorYang, Danlei
dc.contributor.authorHuang, Luofeng
dc.date.accessioned2025-04-28T12:33:07Z
dc.date.available2025-04-28T12:33:07Z
dc.date.freetoread2025-04-28
dc.date.issued2025-06-01
dc.date.pubOnline2025-03-24
dc.description.abstractThe oscillating water column (OWC) is a type of wave energy converter (WEC) that captures the energy of incoming waves. As waves reach the structure, their movement causes the water within an enclosed chamber to oscillate, creating airflow that powers a turbine, generating electricity. This principle can be applied to the design of breakwaters, which can protect marine structures such as floating solar farms and wind turbines. This study involved designing two types of buoyancy chambers for the OWC-WEC and two underneath baffles with adjustable spacing. These configurations were tested in a wave tank to assess wave energy capture, wave attenuation, hydrodynamics, and mooring forces. The experimental results demonstrate that a baffle spacing of 1 m, combined with a V-type buoyancy chamber, significantly enhances the wave energy capture and wave attenuation performance of the OWC. This configuration achieves up to a 57.09 % increase in the capture width ratio and a maximum reduction of 20.88 % in the wave transmission coefficient. Furthermore, mooring line forces are reduced by 21.86 %, while the baffles effectively mitigate pitch motion. Notably, greater pitch reduction improves the capture width ratio. In conclusion, this study introduces a novel wave energy converter, providing key insights for future marine energy development.
dc.description.journalNameOcean Engineering
dc.description.sponsorshipL.H. acknowledges grants received from Innovate UK (No. 10048187, 10079774, 10081314), the Royal Society (IEC∖NSFC∖223253, RG∖R2∖232462) and UK Department for Transport (TRIG2023 – No. 30066).
dc.identifier.citationLyu X, Mi C, Collions S, et al. (2025) Design and experimental tests for novel shapes of floating OWC wave energy converters with the additional purpose of breakwater. Ocean Engineering, Volume 328, June 2025, Article number 121031
dc.identifier.eissn1873-5258
dc.identifier.elementsID567077
dc.identifier.issn0029-8018
dc.identifier.paperNo121031
dc.identifier.urihttps://doi.org/10.1016/j.oceaneng.2025.121031
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23812
dc.identifier.volumeNo328
dc.languageEnglish
dc.language.isoen
dc.publisherElsevier
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S0029801825007449?via%3Dihub
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectRenewable energy
dc.subjectWave energy converter
dc.subjectOscillating water column
dc.subjectExperiments
dc.subjectCapture width ratio
dc.subject4015 Maritime Engineering
dc.subject40 Engineering
dc.subject7 Affordable and Clean Energy
dc.subjectCivil Engineering
dc.subject4005 Civil engineering
dc.subject4012 Fluid mechanics and thermal engineering
dc.titleDesign and experimental tests for novel shapes of floating OWC wave energy converters with the additional purpose of breakwater
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2025-03-18

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