Results 151 to 160 of about 978 (186)
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The efficiency of a turbine in a tidal channel
Journal of Fluid Mechanics, 2007There is an upper bound to the amount of power that can be generated by turbines in tidal channels as too many turbines merely block the flow. One condition for achievement of the upper bound is that the turbines are deployed uniformly across the channel, with all the flow through them, but this may interfere with other uses of the channel. An isolated
CHRIS GARRETT, PATRICK CUMMINS
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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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Tidal Current Turbine, Wind Turbine and Their Dynamic Modelling
2014Wind and tidal current are of the most common energy resources for generating electricity in the near future because of the oil problems (crises and pollution). Within that frame, wind and tidal current energies are surging to the fore. The dynamic model of the offshore wind and tidal current is very important topic for dealing with these renewable ...
Hamed H. H. Aly, M. E. El-Hawary
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Tuning turbines in a tidal channel
Journal of Fluid Mechanics, 2010As tidal turbine farms grow they interact with the larger scale flow along a channel by increasing the channel's drag coefficient. This interaction limits a channel's potential to produce power. A 1D model for a tidal channel is combined with a theory for turbines in a channel to show that the tuning of the flow through the turbines and the density of ...
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Reliability prediction for tidal turbines
2021Marine renewable energy has the potential to form a key part of the renewable electricity generation arsenal that is required for society to prevent catastrophic global warming. Device reliability is one of the great engineering hurdles facing the sector; operating cost effectively in the harsh open ocean is very challenging.
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Numerical analysis of the characteristics of vertical axis tidal current turbines
Renewable Energy, 2010Ye Li, Sander M Calisal
exaly