Exergy storage of compressed air in cavern and cavern volume estimation of the large-scale compressed air energy storage system

Wei He, Xing Luo, David Evans, Jonathan Busby, Seamus Garvey, Daniel Parkes and Jihong Wang

Applied Energy, 2017, vol. 208, issue C, No S0306261917313569, 745-757

Abstract: Accurate estimation of the energy storage capacity of a cavern with a defined storage volume and type is the very first step in planning and engineering a Compressed Air Energy Storage (CAES) plant. The challenges in obtaining a reliable estimation arise in the complexity associated with the thermodynamics of the internal air compression and expansion processes and the coupled heat transfer with surroundings. This study developed the methodology for estimating the exergy storage capacity with a known cavern volume, as well as the cavern volume required for a defined exergy storage capacity with different operation and heat transfer conditions.

Keywords: Compressed Air Energy Storage; Exergy storage; Cavern volume; Air response (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (3)

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DOI: 10.1016/j.apenergy.2017.09.074

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