In this study, modelling of gas turbine engine performance is
carried out using thermodynamics relations. The model reveals that the
influence of operation parameters such as compression ratio, turbine inlet
temperature and ambient temperature has significant effect on the
performance of gas turbine engine. Energy and exergy analyses were
conducted to evaluate the performance of the selected power plant and to
assess the effect of operation parameters on energy loss and exergy
destruction in the plant. Energy analysis shows that the turbine has the
highest proportion of energy loss (31.98%) in the plant. The exergy analysis
results reveal that the combustion chamber is the most exergy destructive
component compared to other cycle components. Thermal efficiency of the
plant is as low as 36.68% while the total efficiency defect and overall
exergetic efficiency of the power plant are 40.46 and 19.06%, respectively
