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Analysis of exergy efficiency of a super-critical compressed carbon dioxide energy-storage system based on the orthogonal method

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  • Qing He
  • Yinping Hao
  • Hui Liu
  • Wenyi Liu

Abstract

Super-critical carbon dioxide energy-storage (SC-CCES) technology is a new type of gas energy-storage technology. This paper used orthogonal method and variance analysis to make significant analysis on the factors which would affect the thermodynamics characteristics of the SC-CCES system and obtained the significant factors and interactions in the energy-storage process, the energy-release process and the whole energy-storage system. Results have shown that the interactions in the components have little influence on the energy-storage process, the energy-release process and the whole energy-storage process of the SC-CCES system, the significant factors are mainly on the characteristics of the system component itself, which will provide reference for the optimization of the thermal properties of the energy-storage system.

Suggested Citation

  • Qing He & Yinping Hao & Hui Liu & Wenyi Liu, 2018. "Analysis of exergy efficiency of a super-critical compressed carbon dioxide energy-storage system based on the orthogonal method," PLOS ONE, Public Library of Science, vol. 13(4), pages 1-10, April.
    • Handle: RePEc:plo:pone00:0195614
    DOI: 10.1371/journal.pone.0195614
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