Sunday, 10 April 2016

explain the working of a single basin and double basin tidal power plant.

TIDE:
"Tides are the rising and falling of Earth's ocean surface caused by the tidal forces fo the Moon and the Sun acting on the oceans"
TIDAL FORCE:
"The tidal force is the vectorial difference between the gravitational force of the Earth and the gravitational force of the Moon"
PRINCIPLE OF TIDAL POWER STATIONS:
1.  Barrages make use of the potential energy from the difference in height (or head) between high and low tides. Barrages suffer from the problems of very high civil infrastructure costs, few viable sites globally and environmental issues.
2.  Tidal stream systems make use of the kinetic energy from the moving water currents to power turbines, in a similar way to wind mills use moving air. This method is gaining in popularity because of the lower cost and lower ecological impact.
UTILIZATION OF TIDAL ENERGY:
1.  Electricity generation requires certain heads difference of water flow. The concept have been advised for operation hydraulic turbine.

i)  Single basin system.
ii) Double basin system.

SINGLE BASIN SYSTEM:

"In this system there is only one interaction with the sequence. The two are separated by dam and flow between through sluice values. The generation of power is by....."
a)  Single ebb cycle system.
b)  Single tide cycle system.
c)  Double cycle system.


DOUBLE BASIN SYSTEM:


"Here the turbine is located two adjacent basin, while the sluice gates are usual embodied in the dam across the month of two estuaries. At the beginning of the flood tide the turbine are shut down. Basin A fills adn B remains empty. As soon as the head difference of A and B is large enough the water is flow from A to B and turbine starts"

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