Fossil Fuel Power Station

4915 Words Feb 16th, 2013 20 Pages
A fossil-fuel power station is a type of power station that burns fossil fuels such as coal,natural gas or petroleum (oil) to produce electricity. Central station fossil-fuel power plants are designed on a large scale for continuous operation. In many countries, such plants provide most of the electrical energy used.
Fossil fuel power stations have rotating machinery to convert the heat energy of combustioninto mechanical energy, which then operates an electrical generator. The prime mover may be a steam turbine, a gas turbine or, in small plants, a reciprocating internal combustionengine. All plants use the energy extracted from expanding gas - steam or combustion gases. A very few MHD generators have been built which directly convert
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temperatures too low.)[3]
The Carnot cycle is the theoretically most efficient closed thermodynamic cycle for conversion of heat energy into useful work, and practical fossil-fuel stations cannot exceed this limit. In principle, fuel cells do not have the same thermodynamic limits as they are not heat engines.
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[edit]Coal

The Grand Canal of China allows convenient access to this power station inYangzhou
Coal is the most abundant fossil fuel on the planet. It is a relatively cheap fuel, with some of the largest deposits in regions that are relatively stable politically, such as China, India and the United States. This contrasts with natural gas and petroleum, the largest deposits of which are located in the politically volatile Persian Gulf. Solid coal cannot directly replace natural gas or petroleum in most applications, petroleum is mostly used for transportationand the natural gas not used for electricity generation is used for space, water and industrial heating. Coal can be converted to gas or liquid fuel, but the efficiencies and economics of such processes can make them unfeasible.[citation needed] Vehicles or heaters may require modification to use coal-derived fuels. Coal can produce more pollution than petroleum or natural gas.
As of 2009 the largest coal-fired power station is Taichung Power Plant in Taiwan. The world's most energy-efficient coal-fired power plant is the Avedøre Power
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