Thermodynamic Performance Analysis of Simple Cycle Gas Turbine Power Plant

The effects of ambient temperature on the performance of a simple cycle gas turbine power plant using the Siemens SGT5-2000E gas turbine at the Geregu power plant in Nigeria was investigated in this study. Thermodynamic equations were used to analyze the performance of gas turbine power plant using ambient conditions and operational data obtained from the Nigerian Metrological Agency (NiMet) for the location and control room of the power plant. The results of the analysis show that ambient temperature significantly impacts compressor exit temperature, compressor work, net work, efficiency, power output, and specific fuel consumption. The findings indicate that as ambient temperature increases, compressor exit temperature, compressor work, and specific fuel consumption increase, while net work, efficiency, and power output decrease. This study offers crucial guidance for enhancing the performance and efficiency of simple cycle gas turbine power plants, particularly in hot climates.