基于热力学分析的光热复合式压缩空气储能系统热经济性评价方法  

Thermal economic evaluation method for photothermal hybrid adiabatic compressed air energy storage system based on the thermodynamics analysis

作　　者：许海扬 陈晓弢[1] 梅香 李相俊 陈来军[1] 梅生伟[4] XU Haiyang;CHEN Xiaotao;MEI Xiang;LI Xiangjun;CHEN Laijun;MEI Shengwei(School of Energy and Electrical Engineering,Qinghai University,Xining 810036,China;China Three Gorges Corporation of Qinghai Branch,Xining 810000,China;State Key Laboratory of Renewable Energy Grid Integration(China Electric Power Research Institute),Beijing 100192,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]青海大学能源与电气工程学院,青海西宁810036 [2]中国长江三峡集团有限公司青海分公司,青海西宁810000 [3]可再生能源并网全国重点实验室(中国电力科学研究院有限公司),北京100192 [4]清华大学电机工程与应用电子技术系,北京100084

出　　处：《青海大学学报》2024年第6期10-17,共8页Journal of Qinghai University

基　　金：国家自然科学基金项目(U22A20224)。

摘　　要：为提高压缩空气储能(CAES)系统应用于分布式综合能源系统中的效率和经济性,从复合式压缩空气储能(HA-CAES)系统的热力学和热经济学两个方面开展研究,提出了应用耦合分布式光热集热器的HA-CAES系统方案。首先,建立了系统的热力学模型,探究各子系统的㶲损失和㶲效率;然后,基于青海海东地区夏季型、过渡季型和冬季型3类典型日的实测光照数据,对比分析5种热量分配方案下系统的盈利能力。结果表明:系统中光热集热器的㶲损失最高,储气室的㶲效率最高;夏季分布式光热子系统集热量最多,系统性能最佳;电/热分配比越小,系统经济性越高;HA-CAES系统建设成本收回后,其盈利能力显著优于先进绝热压缩空气储能(AA-CAES)系统。In order to improve the efficiency and economy of compressed air energy storage(CAES)system applied in the distributed integrated energy system,the research on the thermodynamics and thermoeconomics of hybrid adiabatic compressed air energy storage(HA-CAES)system is conducted in this paper.HA-CAES system coupled with the distributed thermal collector is proposed.Firstly,a thermodynamic model of the system is established to explore the exergy loss and exergy efficiency of each subsystem.Then,based on the measured light data of three typical seasons(summer,transitional season and winter)in Haidong area of Qinghai,the profitability of the system under five heat allocation schemes is compared.The results are as follows:The thermal collector in the system has the highest thermal loss,while the storage room has the highest thermal efficiency.The distributed photothermal subsystem has the highest heat collection and best system performance in summer.The smaller the electricity/heat distribution ratio,the higher the system economy is.After recovering the construction cost of HA-CAES system,its profitability is significantly better than that of advanced adiabatic compressed air energy storage(AA-CAES)system.

关 键 词：蓄能技术 分布式光热系统 复合式压缩空气储能系统 热力学 热经济学 

分 类 号：TK02[动力工程及工程热物理]