压缩气体储能系统热力性能分析与优化OA

The rise of new energy technology has driven the development of Energy storage,among which the compressed gas energy storage system has been widely recognized in the entire energy storage system.As a gas working medium,carbon dioxide has the advantages of less energy storage time,high energy storage efficiency,and good economy than air.This paper models compressed air and compressed carbon dioxide respectively,and conducts thermal analysis to compare the thermal performance of air and carbon dioxide as working medium,The result is that when carbon dioxide is used as the working fluid,its cycle efficiency and heat storage efficiency are higher,and the energy storage density is higher.From the above results,it can be concluded that carbon dioxide as a working medium can reduce energy storage time,improve system energy storage efficiency,and be beneficial for carbon dioxide emission reduction.