Ø The
major heat loss in a steam power station occurs in Condenser, about 53%.
Ø The
thermal efficiency of a steam power station is about 28%.
Ø Cooling
towers are used where water is not available in sufficient quantity.
Ø The
running cost of medium power stations is about 15 paise per unit.
Ø In
a hydro-electric plant, spillways are used discharge surplus water on
the downstream side of dam.
Ø The
running cost of a hydro-electric plant is about 5 paise per unit.
Ø For
high head hydro-electric plants, the turbine used is pelton wheel.
Ø Francis
and Kaplan turbines are used for medium and
low heads.
Ø Surge
tank is provided for the protection of penstock.
Ø Of all the plants, minimum quantity of fuel is required in
nuclear power plant.
Ø The
running cost of a nuclear power plant is about 20 paise per unit.
Ø Diesel
power plants are used as Standby plants.
Ø India’s
first nuclear power plant was built at Tarapur.
Ø The
most simple and clean plant is hydro-electric plant.
Ø The
first nuclear power plant in the world was commissioned in ) U.S.S.R.
in 1954.
Ø Gas
turbine power plant is more efficient than steam power plant.
Ø Draft tube is used in reaction turbines.
Ø The
cost of fuel transportation is minimum in hydro-electric plant.
Ø The
cheapest plant in operation and maintenance is hydroe-lectric plant.
Ø Economisers are used to heat feed water.
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