Gas turbine is a energy conversation that covert thermal energy from burning fuel into mechanical energy. Gas turbine is second popular from internal combustion engine like diesel engine and gasoline engine. Gas turbine is installed in air plane, power plant, large ship and even vehicle.
How the turbine gas works?. Gas turbine is constructed from three main parts, a compressor, combustion chamber and turbine. This arrangement depends on for what application the gas turbine installed. The simplest arrangement is for air plane. In this type the compressor and turbine are in one shaft.
Compressor is used to compress air for combustion. The fuel for gas turbine is a form of gasoline but lighter. This fuel is very easy to flash. In power plant, the fuel is natural gas. The burning fuel results very high temperature and pressure. This pressure is then used to rotate the turbine. In here the energy conversion is take place.
The principal of turbine gas is from Brayton cycle. The efficiency of turbine gas can achieves as high as 50%.
Base on its application, in aviation, the turbine section is made short because the function of turbine is just for rotates the compressor. Actually the turbine gas for aviation is used to make a trust from burning gas. In power plant, the turbine section connected directly to generator. It is relatively long because almost all the power resulting from burning is used to rotate generator.
Turbine gas in power plant also has modification. Its exhaust gas is usually reused by recycling it to rotate the turbine once more or to rotate another turbine. From this mechanism, the efficiency of turbine gas is increase.
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