Tupperwave-preliminary numerical modelling of a floating OWC equipped with a unidirectional turbine

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dc.contributor.author Vicente, Miguel
dc.contributor.author Benreguig, Pierre
dc.contributor.author Crowley, Sarah
dc.contributor.author Murphy, Jimmy
dc.date.accessioned 2020-01-29T11:28:40Z
dc.date.available 2020-01-29T11:28:40Z
dc.date.issued 2017
dc.identifier.citation Vicente, M.,Benreguig, P., Crowley, S. and Murphy, J. (2017) 'Tupperwave-preliminary numerical modelling of a floating OWC equipped with a unidirectional turbine', Proceedings of 12th European Wave and Tidal Energy Conference (EWTEC), Cork, 27 August-1 September. en
dc.identifier.startpage 1 en
dc.identifier.endpage 10 en
dc.identifier.uri http://hdl.handle.net/10468/9579
dc.description.abstract The TUPPERWAVE project is supported by the European Commission's OceanEraNet program. It aims to design and validate an innovative Oscillating Water Column (OWC) Power Take-Off (PTO) concept at laboratory scale. A conventional OWC typically generates a highly fluctuating bidirectional air flow through a self-rectifying turbine. To reduce the pneumatic power fluctuations through the turbine and the acoustic impact and ultimately increase the device efficiency, the TUPPERWAVE concept generates unidirectional air flow in a closed circuit, which can be converted into electricity via a conventional, high efficiency, unidirectional turbine. The principle is based on the use of a pair of non-return valves, two additional chambers above the water column and a unidirectional turbine harnessing energy from the resulting air flow between the two chambers. The concept was adapted to a floating axisymmetric structure. Numerical time-domain models have been developed by UCC and WavEC to determine the deviceâ s primary conversion from hydrodynamic to pneumatic power. Comparison of the output from the two models showed good agreement and allowed an initial optimization of the PTO main design parameters. A set of design parameters were chosen which maximize the pneumatic average power output flowing through the turbine whilst minimizing the power fluctuations, in regular and irregular sea states. When compared to a conventional OWC with the same structure geometry, the optimised Tupperwave device was shown to produce similar pneumatic average power with much lower fluctuations. en
dc.description.sponsorship Horizon 2020 (OCEANERA-NET European Network OCN/00028) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher European Wave and Tidal Energy Conference (EWTEC) en
dc.relation.uri https://ewtec.org/proceedings/
dc.relation.uri https://ewtec.org/ewtec-2017/
dc.rights © 2017, European Wave and Tidal Energy Conference (EWTEC). All rights reserved. en
dc.subject Unidirectional turbine en
dc.subject Numerical modelling en
dc.subject Optimization en
dc.subject Wave energy converter en
dc.subject Oscillating water column en
dc.title Tupperwave-preliminary numerical modelling of a floating OWC equipped with a unidirectional turbine en
dc.type Conference item en
dc.internal.authorcontactother James Murphy, School Of Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: jimmy.murphy@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2020-01-29T11:07:38Z
dc.description.version Accepted Version en
dc.internal.rssid 500687872
dc.contributor.funder Horizon 2020 en
dc.description.status Peer reviewed en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.conferencelocation Cork en
dc.internal.IRISemailaddress jimmy.murphy@ucc.ie en

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