David García GarcíaArmando Garrido Del MoralRodrigo García De Las Hijas
Tidal power, also called tidal energy, is a form of hydropower that converts the energy of tides into useful forms of power mainly electricity.
Tidal power is extracted from the Earths oceanic tides; tidal forces are periodic variations in gravitational attraction exerted by celestial bodies. These forces create corresponding motions or currents in the worlds oceans..
The magnitude and character of this motion reflects the changing positions of the Moon and Sun relative to the Earth, the effects of Earth‘s rotation, and local geography of the sea floor and coastlines.
-First: the movement of the waves is use to produce energy. -Second: the generators use the energy produce by the movement of the waves to change it into electricity or heat. -Third: we use this energy in any way.
Tidal barrages : make use of the potential energy in the difference in height between high and low tides.
Dynamic tidal power is a theoretical generation technology that would exploit an interaction between potential and kinetic energies in tidal flows.
When the tide is highit passes through theturrbines that turn andproduce electricity. ThenThe tank become to befull.Next when there islow tides the tank beganto empty and when thewater goes out it makesThe turbines turn andProduce more electricity.
The country with themost investment in tidalpower is the UnitedKingdom.Here in Spain there aretidal power plantsinGalicia and in the theSouthwest ofAndalucía.
Wikipedia. Google imágenes. http://www.darvill.clara.net/altenerg/tidal.htm