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dc.contributor.authorFallon, David
dc.contributor.authorHartnett, Michael
dc.contributor.authorOlbert, Agnieszka Indiana
dc.contributor.authorNash, Stephen
dc.identifier.citationFallon D, Hartnett M, Olbert AI and Nash S (2014) 'The effects of array configuration on the hydro-environmental impacts of tidal turbines'. Renewable Energy, 64 :10-25.en_US
dc.descriptionJournal articleen_US
dc.description.abstractThe economic viability of tidal turbines will require the deployment of multiple devices in array formations in a manner analogous to wind farms. This research investigates the effects of the configuration of a tidal turbine array, specifically the turbine spacing and capacity, on the hydro-environmental impacts of the array. The hydrodynamic regime of the Shannon Estuary, a highly energetic estuary on the west coast of Ireland, was simulated using a depth integrated 2D hydro-environmental model. The numerical model was modified to incorporate the mechanics of energy extraction using linear momentum actuator disc theory and the impacts of a multiple device array were simulated. Three different array configurations were examined with turbine spacings of 0.5, 2 and 5 rotor diameters. The model results demonstrate that flows are attenuated inside the array and accelerated around the array. Water levels are also affected with a reduction in tidal range within, and upstream of, the array and a delay in high and low tides upstream of the array. The magnitude and extent of the observed impacts are found to reduce as the density and capacity are increased and that the impacts of large-scale arrays can be acceptable if deployed using a low density spacing of 5 rotor diameters.en_US
dc.description.sponsorshipEuropean Regional Development Fund (ERDF) / Atlantic Area Transnational Programme (INTERREG IV); National Centre for Marine Renewable Energy Ireland (MaREI), Science Foundation Irelanden_US
dc.relation.ispartofRenewable Energyen
dc.subjectTidal turbinesen_US
dc.subjectArray configurationen_US
dc.subjectHydro-environmental impactsen_US
dc.subjectTurbine spacingen_US
dc.subjectActuator discen_US
dc.subjectShannon Estuaryen_US
dc.titleThe effects of array configuration on the hydro-environmental impacts of tidal turbinesen_US
dc.local.contactStephen Nash, Dept. Of Civil Engineering, Room N103, Civil Engineering Building, Nui Galway. 3738 Email:

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