Examining the Thermodynamic Effect of Incorporating Wetted Media Evaporative System Gas Turbine Power Plant (KEY IJP************765)

• Igbagbon E. Justic

Abstract

The most important way to improve gas turbine performance is to add a wetted evaporative media cooler to the compressor inlet. The research conducted a retrofitting study on a 450 MW gas-generating electricity plant using the Aspen HYSY simulation model. The results showed that the compressor work decreased, the turbine's net power production increased, the amount of specific fuel used fell, and the plant's efficiency increased when the outside temperature dropped. An ambient temperature reduction of 11.25C was determined to be caused by the evaporative cooler, increasing the turbine's efficiency and net power generation by roughly 3.7% and 11.56 MW, respectively. Additionally, it led to a 0.024 kgKWh reduction in particular fuel usage. Therefore, by lowering the temperature to a level close to the design temperature before compression is needed, an air cooler added to an existing gas turbine plant will improve its performance in high-temperature settings. In tropical countries like Nigeria, this will also tend to improve gas turbine performance.