采用不同工质的压缩气体储能系统热力性能对比分析  

Comparative Analysis of Thermal Performance of Compressed Gas Energy Storage Systems Using Different Working Fluids

作　　者：李阳海 梅欣 徐万兵 王渊静 杨涛[2] 张燕平[2] LI Yanghai;MEI Xin;XU Wanbing;WANG Yuanjing;YANG Tao;ZHANG Yanping(State Grid Hubei Electric Power Testing&Research Institute,Wuhan 430077,China;School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]国网湖北省电力有限公司电力科学研究院,武汉430077 [2]华中科技大学能源与动力工程学院,武汉430074

出　　处：《动力工程学报》2023年第2期269-274,共6页Journal of Chinese Society of Power Engineering

基　　金：国家电网公司科技资助项目(52153222001B)。

摘　　要：通过完善高、中、低温压缩气体储能系统结构,分别使用空气和CO_(2)2种工质进行仿真模拟,对使用不同工质的系统循环效率、储能密度和[火用]进行分析和对比。结果表明:使用空气工质的高、中温系统循环效率更高,低温系统反之;使用空气工质的系统[火用]效率更高;使用CO_(2)工质的系统储能密度更高,系统输入[火用]、输出[火用]和[火用]损失更低。By improving the structure of compressed gas energy storage(CGES) systems at high,medium and low temperatures,air and CO_(2)were used for simulation respectively,and the system cycle efficiency,energy storage density and exergy analysis were analyzed and compared when different working fluids were used.Results show that the cycle efficiency of the high and medium temperature systems using air as working fluid is higher,while that of the low temperature system is opposite.The exergy efficiency of the system using air is higher.The system using CO_(2)as working fluid has higher energy storage density and lower overall exergy input,exergy output and exergy loss.

关 键 词：压缩气体储能 空气 CO_(2) 循环效率 储能密度 [火用]分析 

分 类 号：TK14[动力工程及工程热物理—热能工程]