Limits To Tidal Current Power

Journal Article

Title: Limits To Tidal Current Power
Publication Date:
November 01, 2008
Journal: Renewable Energy
Volume: 33
Issue: 11
Pages: 2485-2490
Publisher: Elsevier
Technology Type:

Document Access

Website: External Link

Citation

Garrett, C.; Cummins, P. (2008). Limits To Tidal Current Power. Renewable Energy, 33(11), 2485-2490.
Abstract: 

Estimating the extractable power of tidal currents in channels is a practical question that has received attention recently. Analysis has clearly shown that the power potential is not given by the flux of kinetic energy, as has been commonly assumed. A general formula for the maximum available power is reviewed, along with assessments of the reduction if only partial fences are used, as would be required for navigational and ecological reasons. In typical situations, the maximum power obtainable may be achieved with a surprisingly small number of turbines, especially if allowance is made for the flow reduction caused by drag on the supporting structures of turbines which reduces the maximum power available. Finally, the flow through tidal turbines is compared with the cooling water demands of nuclear reactors generating the same power.

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