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Optimization of the regasification circuit of a cryogenic energy storage system operating on the Brighton cycle with intermediate steam overheating

DOI: 10.17586/1606-4313-2025-24-3-22-29
UDC 621.5

Optimization of the regasification circuit of a cryogenic energy storage system operating on the Brighton cycle with intermediate steam overheating

Shimanova A. B., Blagin E. V., Uglanov D.A., Shimanov A. A. , Gaev Evgeniy S.

For citation: Shimanova A.B., Blagin E.V., Uglanov D.A., Shimanov A.A., Gaev E.S. Optimization of the regasification circuit of a cryogenic energy storage system operating on the Brighton cycle with intermediate steam overheating. Journal of International Academy of Refrigeration. 2025. No 3. p. 22-29. DOI: 10.17586/1606-4313-2025-24-3-22-29

Abstract
The study is devoted to optimizing the regasification circuit of a cryogenic energy storage system operating on the Brighton cycle with intermediate steam overheating. Mathematical modeling is used to analyze the thermodynamic parameters of the cycle, including the calculation of power, thermal and exergetic efficiency, as well as the cost of equipment. It has been established that the use of air and nitrogen as working fluids provides similar profitability. Exergetic analysis revealed significant losses in the compressor and heat exchangers associated with the temperature pressure. The optimal system configuration is achieved with a 5-fold increase in compressor pressure and a minimum temperature pressure of 1 K. The results demonstrate the potential of using the Brighton cycle to increase the energy efficiency of cryogenic systems.

Keywords: cryogenic energy storage system, Brighton cycle, air, nitrogen, regasification.

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