In this paper, an innovative power-cooling integrated system based on gas turbine, Kalina cycle system, ejector refrigeration cycle (GT-KCS-ERC) is proposed. The ERC driven by GT flue gas and KCS low concentration liquid waste heat is utilized to precool GT inlet air for producing extra power from GT and provide some cooling capacity for users, simultaneously. The comprehensive thermodynamic and thermo-economic analyses are conducted to demonstrate the feasibility of novel GT-KCS-ERC hybrid system by comparing with standalone GT-KCS system. Furthermore, the effects of seven key operation parameters on the system performances are investigated. The multi-objective optimization of GT-KCS-ERC hybrid system and standalone GT-KCS system is carried out through Non-dominated Sorting Genetic Algorithm-II, in which the objectives are maximum total energy efficiency and minimum levelized cost of energy (LCOE). The results show that the total energy efficiency of GT-KCS-ERC increases with increasing pinch point temperature difference of boiler ΔT_KCS,boi and decreasing ammonia concentration of working solution in KCS, while that of standalone GT-KCS shows opposite trends. The LCOE of GT-KCS-ERC is lower than that of standalone GT-KCS as ΔT_KCS,boi is larger than 21℃ or turbine inlet pressure of KCS is higher than 6.6 MPa. The optimal saturated evaporator temperature and pressure ratio of vapor generator to condenser in ERC with optimal refrigerant of R290 are 0℃ and 4, respectively. Under the optimal condition, the GT-KCS-ERC with an ERC secondary flow split ratio of 0.162 for precooling GT inlet air presents 219.4 kW more net power and 764.2 kW more cooling capacity than standalone GT-KCS system. The LCOE decreases by 0.802% and total energy efficiency increases by 5.347% in novel GT-KCS-ERC system comparing with standalone GT-KCS system.

本文提出了一种基于燃气轮机、Kalina循环系统、喷射器制冷循环的创新动力冷却集成系统（GT-KCS-ERC）。由 GT 烟气和 KCS 低浓度液体废热驱动的 ERC 用于预冷 GT 入口空气，以从 GT 产生额外的电力，同时为用户提供一定的冷却能力。通过与独立的 GT-KCS 系统进行比较，进行了全面的热力学和热经济分析，以证明新型 GT-KCS-ERC 混合系统的可行性。此外，研究了七个关键操作参数对系统性能的影响。GT-KCS-ERC混合系统和独立GT-KCS系统的多目标优化通过非支配排序遗传算法-II进行，LCOE）。结果表明，GT-KCS-ERC的总能效随着锅炉夹点温差ΔT _{KCS,boi的增加}和KCS工作液氨浓度的降低而增加，而独立的GT-KCS则呈现相反的趋势。GT-KCS-ERC的LCOE低于独立的 GT-KCS 为 Δ T _KCS,boi大于21℃或KCS汽轮机进口压力大于6.6MPa。最佳制冷剂为R290的ERC中蒸汽发生器与冷凝器的最佳饱和蒸发器温度和压力比分别为0℃和4。在最佳条件下，用于预冷 GT 入口空气的 ERC 二次流分流比为 0.162 的 GT-KCS-ERC 比独立的 GT-KCS 系统提供 219.4 kW 的净功率和 764.2 kW 的冷却能力。与独立的 GT-KCS 系统相比，新型 GT-KCS-ERC 系统的LCOE降低了 0.802%，总能效提高了 5.347%。