李宜洪,刘纪云,李保坤,高诏诏,陈六彪,王俊杰

• 1:中国科学院理化技术研究所低温科学与技术重点实验室
• 2:中国科学院大学
• 3:中绿中科储能技术有限公司

摘要(Abstract)：

液态空气储能（LAES）技术因其高储能密度和与外部能源的灵活耦合特性，成为了一种重要的大规模储能技术。构建了一种回收液态乙烯再气化废冷、引入外部低温热源的LAES系统。从热力学和经济性两方面对压缩机等熵效率、膨胀机等熵效率以及热源温度等系统关键参数进行分析，结果表明：当乙烯流量为34 t/h，储能容量可达5 MW/40 (MW·h)；在90%的压缩和膨胀等熵效率下，仅依赖25℃的环境热源加热空气，往返效率为77.45%；当热源温度提升至125℃时，系统的最优往返效率、净现值及动态回收期分别达到了106.99%、14 473万元和3.56年。该研究结果能为LAES系统与外部冷能的耦合研究提供参考。

关键词(KeyWords)： 液态空气储能;液态乙烯;冷能回收

Abstract:

Keywords:

基金项目(Foundation): 国家资助博士后研究人员计划（GZC20241778）;; 中国绿发科技创新项目（202309CHDD020）~~

作者(Author): 李宜洪,刘纪云,李保坤,高诏诏,陈六彪,王俊杰

DOI: 10.19666/j.rlfd.202406125

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