The three main components of a tidal power plant are as follows:
(a)The dam or dyke (low wall)to form pool or basin.
(b)sluice ways from the basin to the sea and vice versa.
(c)Power house.
The function of a dam or dyke is to form a barrier between the sea and the basin or between one basin or the other in case of multiple basins.
The sluice ways are gate controlled devices.They are used to fill the basin during the high tide or empty the basin during the low tide.
The turbine,generators and other auxiliary equipment are the main components of a power house.
usually the power house,sluice ways are in alignment with the dam.
CLASSIFICATION OF TIDAL PLANTS
Tidal power plants can be classified on the basis of basins used for power generation.There are two types of basin systems.
1.Single basin system.
2.Double basin system.
Single-basin system
This is the simplest system to generate tidal power.In this system there is only one basin which is separated from the sea by a dam or dyke.sluices (gates)are provided in the dam.when the tides are high,water is stored in the basin and the sluice ways are closed.When the tides are falling,sluices are opened to allow the water to pass through the turbine to generated power.The generation of power continues till the level of falling tides coincides with the level of the next rising tide.The power output from single-basin system is intermittent in nature and highly variable.
Double basin system
The turbines are located in the dam separating the two basins.The sluice gates are provided in the dam.The high-level basin gates are called inlet gates and the low-level gates as outlet gates.At the beginning of the tides the turbines are closed ,the inlet gates opened and the outlet gates closed. The upper basin is filled with water.when the water level in basin A provides a sufficient difference of head between the two basin A. When the tide reaches its peak value, the water level in basin A is maximum, the inlet sluices are then closed.The water flows from the upper basin to the lower basin through the turbines.Therefore ,the water level in the upper basin falls and that in the lower basin through the turbines. Therefore,the water level in the upper basin falls and that in the lower basin rises.When the rising level in basin B becomes equal to the level of the falling tide,the outlet sluices are opened.When the tide reaches its lower most level, the outlet gates are closed.After sometime the tide rises.When its level becomes equal to the low level of the upper basin,the inlet gates are opened.consequently the level of water in basin A starts rising.Thus,the cycle is repeated.
(a)The dam or dyke (low wall)to form pool or basin.
(b)sluice ways from the basin to the sea and vice versa.
(c)Power house.
The function of a dam or dyke is to form a barrier between the sea and the basin or between one basin or the other in case of multiple basins.
The sluice ways are gate controlled devices.They are used to fill the basin during the high tide or empty the basin during the low tide.
The turbine,generators and other auxiliary equipment are the main components of a power house.
usually the power house,sluice ways are in alignment with the dam.
CLASSIFICATION OF TIDAL PLANTS
Tidal power plants can be classified on the basis of basins used for power generation.There are two types of basin systems.
1.Single basin system.
2.Double basin system.
Single-basin system
This is the simplest system to generate tidal power.In this system there is only one basin which is separated from the sea by a dam or dyke.sluices (gates)are provided in the dam.when the tides are high,water is stored in the basin and the sluice ways are closed.When the tides are falling,sluices are opened to allow the water to pass through the turbine to generated power.The generation of power continues till the level of falling tides coincides with the level of the next rising tide.The power output from single-basin system is intermittent in nature and highly variable.
Double basin system
The turbines are located in the dam separating the two basins.The sluice gates are provided in the dam.The high-level basin gates are called inlet gates and the low-level gates as outlet gates.At the beginning of the tides the turbines are closed ,the inlet gates opened and the outlet gates closed. The upper basin is filled with water.when the water level in basin A provides a sufficient difference of head between the two basin A. When the tide reaches its peak value, the water level in basin A is maximum, the inlet sluices are then closed.The water flows from the upper basin to the lower basin through the turbines.Therefore ,the water level in the upper basin falls and that in the lower basin through the turbines. Therefore,the water level in the upper basin falls and that in the lower basin rises.When the rising level in basin B becomes equal to the level of the falling tide,the outlet sluices are opened.When the tide reaches its lower most level, the outlet gates are closed.After sometime the tide rises.When its level becomes equal to the low level of the upper basin,the inlet gates are opened.consequently the level of water in basin A starts rising.Thus,the cycle is repeated.
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