Results 21 to 30 of about 322 (180)
Journal of Marine Science and Engineering, 2023 Commercial development of tidal stream energy is hampered by technical and financial challenges, and impeded by uncertainty about potential environmental effects that drive environmental risk assessments and permitting (consenting) processes.
Andrea E. Copping +4 more
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Tidal Energy: The benthic effects of an operational tidal stream turbine
Marine Environmental Research, 2017 The effect of modified flow on epifaunal boulder reef communities adjacent to the SeaGen, the world's first grid-compliant tidal stream turbine, were assessed. The wake of the SeaGen was modelled and the outputs were used in conjunction with positional and substrate descriptor variables, to relate variation in epifaunal community structure to the ...
J.P.J. O'Carroll +3 more
openaire +5 more sources
Tidal stream energy resource assessment in the Qiantang River Estuary, China
International Journal of Sustainable Energy, 2018 A tidal stream energy resource assessment can be achieved through direct measurements of tidal elevations or flow velocities, theoretical formulas, and numerical models. This paper first described the development of renewable energy in China.
Ying Li +3 more
doaj +1 more source
Towards a Low-Cost Modelling System for Optimising the Layout of Tidal Turbine Arrays
Energies, 2015 In the long-term, tidal turbines will most likely be deployed in farms/arrays where energy extraction by one turbine may significantly affect the energy available to another turbine.
Stephen Nash +2 more
doaj +1 more source
Experimental Assessment of Flow, Performance, and Loads for Tidal Turbines in a Closely-Spaced Array
Energies, 2020 Tidal stream turbines are subject to complex flow conditions, particularly when installed in staggered array configurations where the downstream turbines are affected by the wake and/or bypass flow of upstream turbines.
Donald R. Noble +5 more
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Designing multi-rotor tidal turbine fences
International Marine Energy Journal, 2018 An embedded Reynolds-Averaged Navier-Stokes blade element actuator disk model is used to investigate the hydrodynamic design of tidal turbines and their performance in a closely spaced cross-stream fence. Turbines designed for confined flows are found to
C. R. Vogel, R. H. J. Willden
doaj +1 more source
Tidal-stream power assessment—A novel modelling approach
Energy Reports, 2020 An alternative approach for simulating turbine array energy capture, momentum sink-TOC, was developed to improve conventional methodologies for assessing tidal-stream energy resource.
L.M. Flores Mateos, M. Hartnett
doaj +1 more source
Surface Characterisation of Kolk-Boils within Tidal Stream Environments Using UAV Imagery
Journal of Marine Science and Engineering, 2021 High-flow tidal stream environments, targeted for tidal turbine installations, exhibit turbulent features, at fine spatio-temporal scales (metres and seconds), created by site-specific topography and bathymetry. Bed-derived turbulent features (kolk-boils)
James Slingsby +8 more
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Energies, 2013 Tidal stream speeds in straits are accelerated because of geographic and bathymetric features. For instance, narrow channels and shallows can cause high tidal stream energy.
Ming-Hsi Hsu, Wei-Bo Chen, Wen-Cheng Liu
doaj +1 more source
Journal of Marine Science and Engineering, 2019 Estimating the energy potential of tidal stream site is a key feature for tidal energy system deployment. This paper aims to compare two methods of prediction of tidal current velocities. The first one is based on the use of a fully three-dimensional (3D)
Tony El Tawil +3 more
doaj +1 more source