Amir Farhad Najafi - Assistant Professor Power and Water University of Technology Energy Engineering Department
Pouria Ahmadi - M. Sc Student Iran University of Science &Technology Mechanical
Abdosaeid Ganjehei kaviri - M. Sc Student-Iran University of Science &Technology

Due to the importance of increasing power plants performance in Iran Exergy analysis is a common way for these cycles, Thus For this analysis first each part of gas Turbine Plant were modeled by thermodynamic approach then The effect of changing in the inlet turbine temperature on the exergy efficiency and exergy destruction in this plant was evaluated. The results show that the exergy efficiency of the combustion chamber is much lower than that of other plant components due to chemical reaction and the large temperature difference between the burners and working fluid. In addition, these calculations are performed for 50 and 75% G.T base load and results show that the exergy destruction when G.T work in base load is more than full load

efficiency, exergy, Gas Turbine; irreversibility