Basic Civil & Mechanical Engineering: UNIT IV: e. Gas Turbines
Gas Turbines
Applications, Principle - Basic Mechanical Engineering
Gas Turbine was invented in 1930 by Frank Whittle of U.K., but not perfected until 1939. The honour to bring industrial gas turbine to real life goes to Brown Boveri.
UNIT – IV
Chapter - 15
GAS TURBINES
GAS TURBINES
Gas
Turbine was invented in 1930 by Frank Whittle of U.K., but not perfected until
1939. The honour to bring industrial gas turbine to real life goes to Brown
Boveri. The practical applications of the gas turbine to military air-craft and
jet planes during and after the World War boosted the perfection of this new
machine and paved the way for use in power plants.
Applications
Gas turbine is used in jet engines of
aircrafts, rockets, space ships, missiles, marine engines and in turbochargers
of heavy diesel engines. Gas turbine power plants are universally used as peak
load unit as well as stand by unit due to its outstanding operational
characteristics.
Principle
The gas turbine is a prime mover. The working
fluid is atmospheric air and fuel. Natural gas, producer gas, gasoline, etc.,
are used as fuels in a gas turbine. The high pressure hot gas is produced from
the combustion of the fuel and compressed atmospheric air. A jet of burnt gases
and air is made to flow over several rings of moving blades fixed to a rotor of
the turbine.
The
gas turbine requires about 100:1 air-fuel ratio by weight, since it is
necessary to provide a rich mixture for ignition and continuous combustion.
Basic Civil & Mechanical Engineering: UNIT IV: e. Gas Turbines : Tag: : Applications, Principle - Basic Mechanical Engineering - Gas Turbines
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Basic Civil and Mechanical Engineering
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