摘要
当前压缩空气储能已进入商业化发展初期,以绝热式压缩空气储能系统(A-CAES)为主要技术路线,而在工程实践中仍未形成一套系统性、通用性的A-CAES设计体系。本研究通过模块化方法编写热平衡设计与动态性能计算耦合的A-CAES设计程序,以某300 MW A-CAES项目作为研究对象,对蓄热温度与储气室压力波动范围等关键设计参数展开分析。研究表明:A-CAES蓄热温度随膨胀机级数增加而减小,当级数越大时蓄热温度下降幅度越小。2级膨胀机对应高温方案,3级及以上膨胀机级数对应中温方案,不同膨胀机级数对应蓄热温度范围并不相交;当储气室压力波动范围增大时,系统效率下降,储能密度增加。当储气室压力波动范围作为设计优化参数时,需要综合考虑对储能密度与系统效率的影响。
Compressed air energy storage(CAES)has entered the initial stage of commercial application,with adiabatic compressed air energy storage(A-CAES)systems representing the primary technological pathway.However,in engineering practice,a systematic and universally applicable A-CAES design framework has not yet been established.This study adopts a modular approach to develop a design program that integrates thermal balance design with dynamic performance analysis for A-CAES.Using a 300 MW A-CAES project as the case study,key design parameters—namely,the heat storage temperature and the pressure fluctuation range of the gas storage chamber—are investigated.The results show that the heat storage temperature decreases as the number of expansion stages increases,with the rate of decrease diminishing at higher stage numbers.A two-stage expander corresponds to a high-temperature scheme,whereas three-stage and higher expanders correspond to medium-temperature schemes.The corresponding temperature ranges for different expansion stages do not overlap.Furthermore,as the pressure fluctuation range of the gas storage chamber increases,system efficiency decreases while energy storage density increases.When selecting the pressure fluctuation range as an optimization parameter,both energy storage density and system efficiency must be comprehensively evaluated.
作者
王凯轩
牛东圣
程柯楠
刘玮
郭丁彰
WANG Kaixuan;NIU Dongsheng;CHEN Kenan;LIU Wei;GUO Dingzhang(Northwest Engineering Corporation Limited,Xi'an 710065,Shaanxi,China;Inner Mongolia University of Technology,Hohhot 010051,Inner Mongolia,China)
出处
《储能科学与技术》
北大核心
2026年第1期188-196,共9页
Energy Storage Science and Technology
基金
陕西省创新能力支撑计划(2023KJXX-086)
鄂尔多斯市新能源战略性先导科技项目(BS2024084)。
关键词
绝热式压缩空气储能系统
热力系统
工程应用
adiabatic compressed air energy storage system
thermodynamic system
engineering application
