70 likes | 314 Views
Tidal Energy. Br andi Alfaro Sheyla Gonzalez. How it Works. Tides are created by the flowing of water due to the gravitational interaction between the moon, sun, and rotating planet. tidal energy is an energy source direct result of tide shifting from low to high.
E N D
Tidal Energy Brandi Alfaro Sheyla Gonzalez
Howit Works • Tides are created by the flowing of water due to the gravitational interaction between the moon, sun, and rotating planet. • tidal energy is an energy source direct result of tide shifting from low to high. • There consistently has to be a 16 feet difference • Tidal energy is produced through the use of tidal energy generators. designed to capture the kinetic motion of the ebbing and surging of ocean tides in order to produce electricity.
Tidal turbines • Tidal turbines look like wind turbines. They are arrayed underwater in rows • Tidal energy is produced through the use of tidal energy generators. These large underwater turbines are placed in areas with high tidal movements, and are designed to capture the kinetic motion of the ebbing and surging of ocean tides in order to produce electricity. • Tidal turbines are relatively cheap to manufacture. Any number of turbines can be built and installed at any time and so an underwater. • The tide moves a huge amount of water twice each day, and harnessing it could provide a great deal of energy - around 20% of Britain's needs. • Tidal turbines look like wind turbines. They are arrayed underwater in rows
How does it produce E? • Tidal Barrage • Huge dam built across a river estuary. • the water flows through tunnels. The ebb and flow of the tides is used to turn a turbine, or can be used to push air through a pipe, which then turns a turbine.
Table 1 Highest tides (tide ranges) of the global ocean Country Site Tide range (m) • Canada Bay of Fundy 16.2 • England Severn Estuary 14.5 • France Port of Ganville 14.7 • France La Rance 13.5 • Argentina Puerto Rio Gallegos 13.3 • Russia Bay of Mezen (White Sea) 10.0 • Russia PenzhinskayaGub
Environmentalimpacts • Underwater turbines are by definition out of sight and it is believed that their environmental impact is negligible thanks to their slow rotation rates of just 10-30 revolutions per minute. • Tidal Barrage • It affects the way the tide goes out, so birds that feed on the
http://www.darvill.clara.net/altenerg/tidal.htm • http://www.alternative-energy-news.info/technology/hydro/tidal-power/ • http://www.solarfeeds.com/ecofriend/16720-in-focus-tidal-energy