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dc.contributor.advisorVennell, Ross
dc.contributor.authorLorange, Astrid Marlene Suzanne
dc.date.available2015-03-16T20:02:46Z
dc.date.copyright2015
dc.identifier.citationLorange, A. M. S. (2015). Assessing Tidal Current Power Resources (Thesis, Master of Science). University of Otago. Retrieved from http://hdl.handle.net/10523/5538en
dc.identifier.urihttp://hdl.handle.net/10523/5538
dc.description.abstractTidal current energy is looked upon worldwide as a largely untapped, potentially significant and reliable source of energy. Countries, such as the United Kingdom and Canada, are working towards the implantation of tidal turbine farms in order to exploit this promising form of renewable energy. One of the barriers to further developing tidal energy extraction is the difficulty of accurately assessing the extractable energy or realisable tidal current output of a given site. Various numerical models for site assessments currently exist. Three of them, the Kinetic Energy Flux and two models, named GC05 and V10, which take into account the effect on the flow of the introduction of turbines are described, discussed and used throughout this work. Data regarding 239 channels worldwide have been collected. These data are used to investigate the possible existence of patterns between channel characteristics or parameters and channel potential estimates. New upper limits for the tidal current potentials of the UK and Ireland are calculated using the collected data and the most advanced model - V10, and compared to previous values. Finally, resource assessments, based on realisable power, are produced using the V10 model and the Seagen turbine characteristics. For these resource assessments, limits of up to 20% with regards to the blockage ratio and the reduction in flow speed for a given channel are put in place. These results show that a substantial fraction of the upper tidal current potential limit can be realised with only a 20% blockage ratio and a 20% reduction in flow speed for most channels.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherUniversity of Otago
dc.rightsAll items in OUR Archive are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectNew Zealand
dc.subjectAustralia
dc.subjectNorway
dc.subjectUK
dc.subjectUnited Kingdom
dc.subjectChili
dc.subjectJapan
dc.subjectSingapore
dc.subjectIreland
dc.subjectScotland
dc.subjectUSA
dc.subjectAmerica
dc.subjectCanada
dc.subjectTidal
dc.subjectPower
dc.subjectTidal Energy
dc.subjectTidal Power
dc.subjectTidal Turbine
dc.subjectSeagen
dc.subjectElectricity
dc.subjectElectricity Generation
dc.subjectTidal Turbine Farm
dc.subjectSite Assessment
dc.subjectTidal Current Power Resources
dc.subjectRealizable Power
dc.subjectRealisable Power
dc.subjectTidal Site
dc.subjectSiting
dc.titleAssessing Tidal Current Power Resources
dc.typeThesis
dc.date.updated2015-03-16T02:58:47Z
dc.language.rfc3066en
thesis.degree.disciplineMarine Science
thesis.degree.nameMaster of Science
thesis.degree.grantorUniversity of Otago
thesis.degree.levelMasters
otago.openaccessOpen
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