This work aims to evaluate the effect of compressor inlet air temperature on the power cycle performance of gas turbines, employing different control operation techniques. Therefore the power cycle of the combination of a Gas Turbine (GT) with a single effect H2O-BrLi absorption refrigeration is examined. GT power cycle simulations are carried out based on the full and partial load model of power and cooling systems, deploying the Thermo-flow and Engineering Equation Solver (EES). Moreover, Turbine Inlet Temperature (TIT), Inlet Guide Vane (IGV), and the combined IGV and TIT control strategies, are employed to evaluate the advantages of applying various GT power cycles and off-design operations. The results exhibit that the combined IGV and TIT method is the appropriate one, offering higher integrated cooling and power system efficiency compared to the TIT control approach alone. When the compressor intake air temperature rises, it negatively influences cycle effectiveness. The air mass flow rate and pressure ratio decrease, thus, leading to a decrease in the power output and thermal efficiency of the gas turbine. Finally, the absorption cooling system implementation improves power generation and thermal efficiency in a GT power plant, by 20.68% and 5.32%, respectively.
Hashim et al. (Sat,) studied this question.