Modeling and Performance Assessment of AN SGT5- 2000E Gas Turbine in AZURA Power Plant

This study evaluates the performance of the SGT5- 2000E gas turbine at the Azura Power Plant, Benin City, Nigeria, under a simple cycle configuration using GasTurb 14 software. Simulations were conducted to examine the effects of varying ambient temperature, relative humidity, and turbine inlet temperature (TIT) on key performance parameters. The results revealed that increased TIT significantly improved both power output and thermal efficiency. For instance, a TIT of 1109.7 °C resulted in a power output of 159.5 MW, a thermal efficiency of 35.14%, and a heat rate of 10,228 kJ/kWh. Ambient temperature variations demonstrated an inverse relationship with power output and thermal efficiency, with lower temperatures yielding higher performance. Similarly, increased relative humidity positively influenced power output and reduced specific fuel consumption. These findings highlight the critical influence of environmental conditions and TIT optimization on the operational efficiency of gas turbines in simple cycle mode, providing valuable insights for enhancing performance in similar energy setups.