Author: Beatriz
Website: http://iran.whyweprotest.net/off-topic/52127-tidal-power.htm…
Tidal energy is one of the most reliable and predictable source of renewable energy. There are two ways of creating tidal power: tidal dams and ocean currents. Dams are based on using a barrage at a bay or estuary with a large tidal range. Power is generated primarily at ebb tides as the barrage creates a significant head of water, much like a hydroelectric dam. Tidal turbines take advantage of fast-flowing ocean currents to create energy. The horizontal axis ocean turbines are the more common ones and are only half the size of the wind turbines, which are producing 1 MW of power.
The ocean’s energy is created when the sun’s heat warms up the ocean surface water. The Ocean Thermal Energy Conversion (OTEC) is a method that takes advantage of this temperature difference for generating electricity. There are three types of electricity conversion systems: closed-cycle, open-cycle, and hybrid. Closed-cycle systems use the ocean’s warm surface water to vaporize a working fluid,…
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