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TPP General Information

A thermal power station is a power plant that uses steam to drive a turbine connected to an electrical generator. Water is heated into steam to spin the turbine, then the steam is condensed and recycled in a Rankine cycle. Thermal power stations can vary in design depending on the type of fossil fuel used to heat the water, such as coal, natural gas, or oil. They produce electricity and sometimes heat for industrial processes. However, they also emit large amounts of carbon dioxide and other pollutants, contributing to global climate change.

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33 views1 page

TPP General Information

A thermal power station is a power plant that uses steam to drive a turbine connected to an electrical generator. Water is heated into steam to spin the turbine, then the steam is condensed and recycled in a Rankine cycle. Thermal power stations can vary in design depending on the type of fossil fuel used to heat the water, such as coal, natural gas, or oil. They produce electricity and sometimes heat for industrial processes. However, they also emit large amounts of carbon dioxide and other pollutants, contributing to global climate change.

Uploaded by

lokman
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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A 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 fossil fuel resources generally used to heat the water. Some prefer
to use the term energy center because such facilities convert forms of heat energy into electrical
energy.[1] Certain thermal power plants also are designed to produce heat energy for industrial
purposes of district heating, or desalination of water, in addition to generating electrical power.
Globally, fossil-fuel power stations produce a large part of man-made CO2 emissions to the
atmosphere, and efforts to reduce these are varied and widespread.

Fossil-fuel power station


A fossil-fuel power station is a power station which burns fossil fuel such as coal, natural
gas or petroleum to produceelectricity. 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 machinery to convert the heat energy
ofcombustion into mechanical energy, which then operates an electrical generator. The prime
mover may be a steam turbine, agas turbine or, in small plants, a reciprocating internal
combustion engine. All plants use the energy extracted from expanding gas, either steam or
combustion gases. Very few MHD generators have been built which directly convert the energy of
moving hot gas into electricity.
Byproducts of thermal power plant operation must be considered in their design and
operation. Waste heat energy, which remains due to the finite efficiency of the Carnot, Rankine,
or Diesel power cycle, is released directly to the atmosphere or river/lake water, or indirectly to
the atmosphere using a cooling tower with river or lake water used as a cooling medium. Theflue
gas from combustion of the fossil fuels is discharged to the air. This gas contains carbon
dioxide and water vapor, as well as other substances such as nitrogen oxides (NOx), sulfur
oxides (SOx), mercury, traces of other metals, and, for coal-fired plants, fly ash. Solid waste ash
from coal-fired boilers must also be removed. Some coal ash can be recycled for building
materials.[1]
Fossil fueled power stations are major emitters of CO2, a greenhouse gas which according to
a consensus opinion of scientific organisations is a contributor to global warming. Per unit of
electric energy, brown coal emits nearly two times as much CO2 as natural gas, and black coal
emits somewhat less than brown. Carbon capture and storage of emissions is not currently
available.

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