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differentiate between thermal power plant and hydro power plant?

Asked by Vanshita(parent) , on 23/7/14


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thermal power station  is a  power plant  in which the  prime mover  is  steam  driven. Water is heated, turns into steam and spins a  steam turbine which drives an  electrical generator . After it passes through the turbine, the steam is  condensed  in a  condenser  and recycled to where it was heated; this is known as a  Rankine cycle . The greatest variation in the design of thermal power stations is due to the different fuel sources. Some prefer to use the term  energy center  because such facilities convert forms of  heat   energy  into electricity. [1]  Some thermal power plants also deliver heat energy for industrial purposes, for  district heating , or for  desalination  of water as well as delivering electrical power. A large part of human CO 2 emissions comes from fossil fueled thermal power plants; efforts to reduce these outputs are various and widespread. whereas  Hydropower  or  water power  is  power  derived from the  energy  of falling water, which may be harnessed for useful purposes. Since ancient times, hydropower has been used for  irrigation  and the operation of various mechanical devices, such as  watermills sawmills textile  mills, dock  cranes , and domestic  lifts . Water 's power is manifested in  hydrology , by the forces of water on the  riverbed  and banks of a river. When a river is in flood, it is at its most powerful, and moves the greatest amount of  sediment . This higher force results in the removal of sediment and other material from the riverbed and banks of the river, locally causing  erosion , transport and, with lower flow,  sedimentation  downstream.

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Posted by Apps(student)on 29/7/12

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HYDRO POWER PLANT

  electicity produced by using the energy of flowing water is called hydroelectricity.Rain falling on the high ground in hilly areas flows down as rivers.In order to produce electricity,a high rise dam is built to stop the flowing water.Due to this,a large lake or reservoir builds up behind the dam.As more n more water collects in the reservoir,the level of water behind the dam rises to a large height.Thus,the water stored behind a tall dam has a lot of potential energy due to its great height.The sliding gates at half the height of dam are opened to allow some of the stored water to escape.Since the water falls down through a large height from the dam,it flows very fast.Ahigh pressure jet of fast flowing water rotates the turbine through which he shaft also rotates.This drives the generator and produces electricity.

THERMAL POWER PLANT

COAL(OIL OR GAS)is burned in furnace to produce heat.this heat boils the water in a boler to form steam.The team formed from the boiling water builds up a pressure.The hot steam at high pressure passes over the blades of the turbine and rotates it.A shaft connected to it also rotates which drives the generator and produce electricity.

Posted by Arpita Kudesia(student)on 29/7/12

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In a thermal power station, water is heated by fuels and converted to steam that drives the turbines which in turn the dynamo shaft.

In a hydro power generating dam, water is stored by dams and is allowed to flow by controlled valves at the base of the dam. The water starts moving out of the dam and turbines are fixed at the aperture of flow.The turbines are turned by the kinetic energ of water which in turn turn the dynamo shaft.

The principle in both is the same, only the application is different,i.e. one is artificial and the other is natural. 

Posted by Waris Aijaz(student)on 29/7/12

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Thermal plant generates power by burning fossil fules, petroluem & others. there is lot 's of CO2 generated by burning @ 1200 Kg-CO2 / Mw -power. Global warming is concerned about this, therefore must be reduced in the future by adopting ecofroindly power generation systems, such as solar, wind , hydro, biofules, neuclear, geothermal etc

Hydro power plant uses the potential energy of water when ot falls from a heigth on the turbine & rotates it to produce power. This is cheap & ecofrindly.

Posted by Esther D Raju(student)on 4/8/12

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In a thermal power station, water is heated by fuels and converted to steam that drives the turbines which in turn the dynamo shaft.

In a hydro power generating dam, water is stored by dams and is allowed to flow by controlled valves at the base of the dam. The water starts moving out of the dam and turbines are fixed at the aperture of flow.The turbines are turned by the kinetic energ of water which in turn turn the dynamo shaft.

The principle in both is the same, only the application is different,i.e. one is artificial and the other is natural.

Posted by Param Sukhadia(student)on 17/9/13

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