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Gas Turbine

 A gas turbine is an internal combustion engine that convert liquid fuels to mechanical energy. This energy is then used to drive a generator for the production of electrical energy. In the country where we don’t have rivers we can not use hydraulics turbines so in that case we only have this option of Gas turbines like in the gulf countries like UAE and Saudi Arabia.


Working of Gas Turbines

The working principle of a gas turbine is based up on the Brayton cycle in which the air is used as a working fluid. Atmospheric air flows through the compressor which brings it to a higher pressure. In this high pressure air the energy is being added by spraying the fuel into the air and burn it so that the combustion process take place and generates a high-temperature flow. This high-temperature high-pressure gas enters the turbine main body, where it expands down to the exit/exhaust pressure, in doing so there produce a shaft mechanical work output. And this turbine shaft work is then used to drive a compressor; the energy that is not used for compressing the working fluid comes out as exhaust gases that can be used for other works like directly producing thrust in a turbojet engine, or rotating a second independent turbine which is known as a power turbine which can be connected to a separate instrument like electrical generator, fan, or a propeller.

Images of Gas Turbine.









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