Enhanced performance of a modified tc-CO₂ refrigeration system aided with an absorption chiller - an exergetic and energetic analysis
by Abhishek Verma; S.C. Kaushik; S.K. Tyagi
International Journal of Exergy (IJEX), Vol. 44, No. 3/4, 2024

Abstract: The present study analyses thermodynamically a novel tc-CO₂ refrigeration system designed for low-temperature refrigeration. Subcooling is achieved through a single-effect absorption chiller, using compression-generated heat. A work recovery turbine reduces throttling losses and electricity consumption. Performance enhancements are obtained via parametric analysis and optimisation. The integrated system is compared with basic tc-CO₂ configurations with a work recovery turbine. Results show a 28.83% performance enhancement over the TCRST for an evaporator temperature of -35°C and a heat rejection temperature of 35°C. This research underscores the effectiveness of the integrated system in improving refrigeration performance under various conditions.

Online publication date: Sat, 27-Jul-2024

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