Design Strategy of Diagonal Compressors in Compressed Air Energy Storage System

作     者：ZHANG Yuxin ZUO Zhitao GUO Wenbin LIANG Qi CHEN Haisheng ZHANG Yuxin;ZUO Zhitao;GUO Wenbin;LIANG Qi;CHEN Haisheng

作者机构：Institute of Engineering ThermophysicsChinese Academy of SciencesBeijing100190China University of Chinese Academy of SciencesBeijing100049China National Energy Large Scale Physical Energy Storage Technologies R&D Center of BijieBijie551700China Nanjing Institute of Future Energy SystemIETCASNanjing211135China 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2024年第33卷第3期

页      面：872-887页

核心收录：

学科分类：08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 

基　　金：supported by the Major Science and Technology Projects of Inner Mongolia(Grant No.2021ZD0030) the National Natural Science Foundation of China(Grant No.52106278) the National Science Fund for Distinguished Young Scholars(Grant No.51925604) the Science and Technology Foundation of Guizhou Province(No.1422) Xplorer Prize。 

主　　题：compressed air energy storage design strategy diagonal compressor optimal selection design procedure 

摘      要：As a kind of large-scale physical energy storage,compressed air energy storage(CAES)plays an important role in the construction of more efficient energy system based on renewable energy in the future.Compared with traditional industrial compressors,the compressor of CAES has higher off-design performance requirements.From the perspective of design,it needs to pay attention not only to the performance of the design point,but also to the performance of all the stable working range.However,from the previous literature,no diagonal compressor was used in CAES which can meet the requirements,which also reflects the design program can be further improved.Therefore,this paper studies the design strategy of high efficient diagonal compressor for large-scale CAES,and gives the complete strategy algorithms used for different program modules.The pressure ratio,isentropic efficiency and stable working range are comprehensively considered.In the design process,the criteria for the key parameters of the diagonal flow angle of the diagonal compressor are given for the first time.The results show that the isentropic efficiency at the design point is 92.7%,the total pressure ratio is1.97,and the stable working range exceeds 20%,which meets the design requirements of the compressor for CAES and exceeds the overall performance of the previous compressors in the entire working range.