耦合熔盐储热的补燃式压缩空气储能系统热力性能分析  

Thermodynamic Analysis on the Afterburning-type Compressed Air Energy Storage System Integrated With Molten Salt Thermal Storage

作　　者：赵朝成 刘明[1] 倪广涛 严俊杰[1] ZHAO Chaocheng;LIU Ming;NI Guangtao;YAN Junjie(State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《工程热物理学报》2025年第1期42-50,共9页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.52022079)。

摘　　要：储能技术是构建新型电力系统、实现双碳目标的关键,压缩空气储能是极具潜力的大规模长时储能技术。本文提出了一种耦合熔盐储热的补燃式压缩空气储能系统,建立了系统热力性能分析模型,研究了不同电负荷需求下关键参数对系统性能的影响规律。研究结果表明,系统的四种运行模式可分别应对高、中高、中低、低四种负荷需求,其中,高负荷输出功率为1573.93 kW,低负荷输出功率为350.15 kW,且低负荷运行模式系统往返效率最高,达69.87%。Energy storage is the key technique to establish the new-type power system and achieve the dual carbon goal,and the compressed air energy storage is a highly promising option for largescale long-term energy storage.In this study,an afterburning-type compressed air energy storage system integrated with molten salt thermal storage was proposed,and thermodynamic models of the proposed system were developed.Then,influences of key parameters on system performance under different power loads were evaluated.The analysis results show that the four operation modes of the system can meet four power load demands,i.e.,the high power load demand,the medium-high power load demand,the medium-low power load demand,and the low power load demand.Among them,the output power corresponding to high power load demand is 1573.93 kW,and the output power corresponding to low power load demand is 350.15 kW.The roundtrip efficiency of operation mode with low power load is the highest of 69.87%.

关 键 词：压缩空气储能 熔盐储热 补燃 热力学分析 往返效率 

分 类 号：TK123[动力工程及工程热物理—工程热物理]