Gas Turbine

Gas turbines use hot gases generated directly from the combustion of fossil fuels. The hot gas expands through the blades on the turbine rotor causing them to move. The gas turbine process is:

3-4 irreversible but approximately adiabatic expansion of combustion gases

The work output of the turbine is:

m=mass flow of hot gases
h3=enthalpy of hot gases at inlet
h4=enthalpy of exhaust gases

The isentropic efficiency of the turbine is:

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