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

Author

Listed:
  • He, Wei
  • Luo, Xing
  • Evans, David
  • Busby, Jonathan
  • Garvey, Seamus
  • Parkes, Daniel
  • Wang, Jihong

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.

Suggested Citation

  • He, Wei & Luo, Xing & Evans, David & Busby, Jonathan & Garvey, Seamus & Parkes, Daniel & Wang, Jihong, 2017. "Exergy storage of compressed air in cavern and cavern volume estimation of the large-scale compressed air energy storage system," Applied Energy, Elsevier, vol. 208(C), pages 745-757.
    • Handle: RePEc:eee:appene:v:208:y:2017:i:c:p:745-757
    DOI: 10.1016/j.apenergy.2017.09.074
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