Multi-objective optimization of an innovative power-cooling integrated system based on gas turbine cycle with compressor inlet air precooling, Kalina cycle and ejector refrigeration cycle

Du Yang; Jiang Nan; Zhang Yicen; Wang Xu; Zhao Pan; Wang Jiangfeng; Dai Yiping

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Multi-objective optimization of an innovative power-cooling integrated system based on gas turbine cycle with compressor inlet air precooling, Kalina cycle and ejector refrigeration cycle

机译：基于燃气涡轮机循环的基于燃气轮机空气预冷，Kalina循环和喷射器制冷循环的创新电力冷却集成系统多目标优化

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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 GTKCS-ERC increases with increasing pinch point temperature difference of boiler Delta TKCS,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 Delta TKCS,boi is larger than 21 degrees C 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 degrees C 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.

机译：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（GT-KCS-ERC）的创新的电力冷却集成系统。由GT烟气和KCS低浓度液体废热驱动的ERC用于预制GT入口空气，用于从GT产生额外的功率，并同时为用户提供一些冷却能力。通过与独立GT-KCS系统相比，进行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系统的多目标优化是通过非主导的分类遗传算法-II进行的，其中目标是最大总能量效率和最小能量的能源成本（LCoE）。结果表明，GTKCS-ERC的总能量效率随着锅炉ΔTKC，BOI的捏积点温度差异而增加，并在KC中降低了工作溶液的氨浓度，而独立的GT-KCS则显示相反的趋势。 GT-KCS-ERC的LCOE低于独立GT-KCS作为Delta TKC的LCOE，BOI大于21摄氏度或KC的涡轮机入口压力高于6.6MPa。具有R290的最佳制冷剂的ERC中蒸气发生器对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，GT-KCS-ERC具有0.162的ERC二次流动分流比对于预冷的GT入口空气，净功率比独立GT-KCS系统更高的净功率和764.2kW更多的冷却能力。与独立GT-KCS系统相比，LCoE降低了0.802％，总能效增加了5.347％。

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来源
《Energy Conversion & Management》 |2021年第9期|114473.1-114473.20|共20页
作者
Du Yang; Jiang Nan; Zhang Yicen; Wang Xu; Zhao Pan; Wang Jiangfeng; Dai Yiping;
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作者单位

Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China|Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

Xi An Jiao Tong Univ Inst Turbomachinery Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Ejector refrigeration cycle; Kalina cycle; Air precooling; Multi-objective optimization; Gas turbine;

机译：喷射器制冷循环;Kalina循环;空气预冷;多目标优化;燃气轮机;

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Multi-objective optimization of an innovative power-cooling integrated system based on gas turbine cycle with compressor inlet air precooling, Kalina cycle and ejector refrigeration cycle

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