Thermodynamic, environmental, and optimization of a new power generation system driven by a gas turbine cycle

Abstract

This study aims at the proposal of a novel waste heat recovery system to recover the waste heat of the gas turbine cycle. Thus, a novel power generation system is devised based on the gas turbine cycle and Kalian cycle. To evaluate the performance of the system, the energy, exergy, and environmental analysis is carried out. Also, the sensitivity analysis is performed to assess the effect of different parameters on the system’s performance criteria, including net output power, thermal efficiency, exergetic efficiency, and Levelized total emission. Using genetic algorithm, the optimization process is performed in different scenarios. Based on the optimization results, the TEOD (Thermal efficiency optimization design) mode can result in the optimum performance as it leads to increment of thermal efficiency and exergy efficiency by 46.11% and 47.24%, respectively. Also, the LTE value is decreased to 60113 kg kW−1. Among all components of the system, the combustion chamber is contributed to the highest value of the exergy destruction rate by 27141 kW, where the exergy destruction rate of the Kalina subsystem is followed the combustion chamber by the value of 6932 kW.

Keywords

• GT cycle
• Kalina cycle
• Waste heat recovery
• 3E analysis
• Optimization