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Abstract As a new type of energy siorage,the compressed air energy storage(CAES) have been developed quickly in recent years. The CAES allows storage of energy produced during off-peak periods for use during peak generation periods. Air is compressed andstored in high pressure,and then used in the combustion process of a hot gas expander. In this paper,the history,classification and operation cycles of the CAES are introduced. Some points about the layout and design of the CAES, as well as the relationship between this kind of energy storage and the underground engineering,are analyzed. The advantages of the CAES compared with other kinds of energy storages and its developing future in China are also discused.
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2003, Vol. 22 
