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Tidal Stream Generators
A tidal stream generator, often referred to as a tidal energy converter (TEC), is a machine that extracts energy from moving masses of water, in particular tides, although the term is often used in reference to machines designed to extract energy from run of river or tidal estuarine sites. Certain types of these machines function very much like underwater wind turbines, and are thus often referred to as tidal turbines. They were first conceived in the 1970s during the oil crisis.Jones, Anthony T., and Adam Westwood. "Power from the oceans: wind energy industries are growing, and as we look for alternative power sources, the growth potential is through the roof. Two industry watchers take a look at generating energy from wind and wave action and the potential to alter." The Futurist 39.1 (2005): 37(5). GALE Expanded Academic ASAP. Web. 8 October 2009. Tidal stream generators are the cheapest and the least ecologically damaging among the four main forms of tidal power generation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evopod In Strangford Lough 2008
Evopod is a unique tidal energy device being developed by a UK-based company Oceanflow Energy Ltd for generating electricity from tidal streams and ocean currents. It can operate in exposed deep water sites where severe wind and waves also make up the environment. Floating tethered turbines Advantages *The flow speed in tidal streams and ocean currents tends to be fastest near the surface and falls off in speed as one descend in the water column. As the power that can be extracted from the free flowing water is proportional to the velocity cubed, then a 10% increase in flow speed equates to a 33% increase in power per unit swept area of the turbine.Black and Veatch (17-7-2005"TIDAL STREAM ENERGY - RESOURCE AND TECHNOLOGY SUMMARY REPORT"(PDF) Retrieved on 11-06-2009. *The flow is generally more consistent in the top 1/3 of the water column as it is well away from disturbances created by the seabed topography. *The drag force on turbines of the same power output is proport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
