Thermodynamic analysis of transcritical CO2 refrigeration cycle integrated with thermoelectric subcooler and ejector

作者: Xi Liu , Ruansong Fu , Zhiqiang Wang , Li Lin , Zhixin Sun

DOI: 10.1016/J.ENCONMAN.2019.02.088

关键词:

摘要: Abstract In this paper, the new configuration of transcritical CO2 refrigeration cycle combined with a thermoelectric subcooler and an ejector (TES + EJE) is proposed. The installed after gas cooler in ejector. Comparisons are carried out conventional (BASE), (TES) (EJE). Maximum cooling coefficient performance (COPc) obtained for TES + EJE simultaneous optimization subcooling temperature discharge pressure. improved exhibits higher COPc lower pressure compared other three cycles. Compared BASE cycle, maximum increased by 39.34% corresponding optimum reduced 8.01% under given operation conditions 5 °C evaporation 40 °C outlet temperature. effects temperature, pressure, on system also discussed energy exergy analysis results present here.

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