Results 201 to 210 of about 29,236 (265)
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Unsteady gust response of tidal stream turbines
2014 Oceans - St. John's, 2014This paper investigates the limitations of 2D linear unsteady aerofoil theory for modelling the unsteady gust response of tidal stream turbines. The work is motivated by the fact that accurate unsteady load prediction is required to determine turbine life.
Carl L. Sequeira, Robert J. Miller
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The Physics of Fluids
This study investigates the impact of sidewall blockage effect on the hydrodynamic performance of twin-rotor vertical axis tidal stream turbine (TR-VATST) with varying solidities.
Ming Kong +7 more
semanticscholar +1 more source
This study investigates the impact of sidewall blockage effect on the hydrodynamic performance of twin-rotor vertical axis tidal stream turbine (TR-VATST) with varying solidities.
Ming Kong +7 more
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Implementation of Tidal Stream Turbines and Tidal Barrage Structures in DG-SWEM
Volume 10: Ocean Renewable Energy, 2019Abstract There are two approaches to extracting power from tides — either turbines are placed in areas of strong flows or turbines are placed in barrages enabling the two sides of the barrage to be closed off and a head to build up across the barrage.
Schnabl, A +6 more
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The Physics of Fluids
The study investigates the wake characteristics and power fluctuation behavior of a horizontal-axis tidal turbine subjected to co- and counter-directional wave–current interactions.
Yirong Wang +5 more
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The study investigates the wake characteristics and power fluctuation behavior of a horizontal-axis tidal turbine subjected to co- and counter-directional wave–current interactions.
Yirong Wang +5 more
semanticscholar +1 more source
Journal of Marine Science and Engineering
Power generation is affected and structural instability may occur when biofouling attaches to the rotor of tidal stream turbines (TSTs). Image signals are used to identify biofouling for biofouling recognition, thus achieving on-demand maintenance ...
Haoran Xu +3 more
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Power generation is affected and structural instability may occur when biofouling attaches to the rotor of tidal stream turbines (TSTs). Image signals are used to identify biofouling for biofouling recognition, thus achieving on-demand maintenance ...
Haoran Xu +3 more
semanticscholar +1 more source
International marine energy journal
Fast tidal currents are generally found in shallow water depths where tidal turbines can be deployed to operate. In complex environments in which there is an irregular bathymetry, seabed shape changes can induce pressure gradients that accelerate or ...
S. Hurubi +4 more
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Fast tidal currents are generally found in shallow water depths where tidal turbines can be deployed to operate. In complex environments in which there is an irregular bathymetry, seabed shape changes can induce pressure gradients that accelerate or ...
S. Hurubi +4 more
semanticscholar +1 more source
Modelling the Impact of Structure Generated Shadowing on Tidal Stream Turbine Performance
Volume 5: Ocean Renewable EnergyMany tidal stream turbine developers are now opting for fixed yaw devices, in favour of design simplicity and reliability. For every other flood and ebb cycle, these turbines will operate downstream of their floating or fixed foundation, inducing ...
Bryn Townley +4 more
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Investigating the impact of multi-rotor structure shadowing on tidal stream turbine performance
Proceedings of the European Wave and Tidal Energy Conference, 2023As the tidal stream energy sector develops, reducing the Levelised Cost of Energy (LCOE) is essential to sustain commercialisation. Modular multi-rotor foundations, with bi-directional turbines, reduce offshore operational complexity through smaller ...
Bryn Townley +5 more
semanticscholar +1 more source
Characterisation of turbulent flow and the wake of a tidal stream turbine in proximity to a ridge
Proceedings of the European Wave and Tidal Energy Conference, 2023Fast tidal currents are generally found in shallow water depths where tidal turbines can be deployed to operate. In complex environments in which there is an irregular bathymetry, seabed shape changes can induce pressure gradients that accelerate or ...
S. Hurubi +4 more
semanticscholar +1 more source
Tidal stream turbines: With or without a Gearbox?
Ocean Engineering, 2018Abstract This paper proposes a review-based comparative study addressing the critical issue of tidal stream turbine drivetrain options. Indeed, tidal stream turbines are still in development stages with few industrial project deployments. Their technology is not as mature as wind turbine technology, while facing immersion constraints where have to ...
Khalil Touimi +2 more
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