Thermo-Economic Analysis of Transcritical Carbon Dioxide Refrigeration Cycle

The use of refrigerants such as CFC and HCFC will have been completely finalized in 2030 because of the damage to the ozone layer by the international protocols. For this reason, CO2 refrigerant cooling cycles, which are considered to be an alternative refrigerant and give proper performance results, have begun to be used. In this study, thermo-economic analysis of transcritical carbon dioxide refrigeration cycle was examined. The necessary thermodynamic data for analysis were obtained by CoolPack program. The coefficient of performance (COP) and the annual cost analysis of the cycle in the different working conditions were examined. Energy consumption cost values required for the calculations were taken from Republic of Turkey Energy Market Regulatory Authority. The highest COP value of cycle for among all the working condition is found as 3.524 for 0 oC evaporator temperature, 30 oC gas cooler output temperature. The lowest annual cost values were found depending on the evaporator temperature change in transcritical carbon dioxide refrigeration cycle as 3269.376 Turkish Lira (TL). Obtained results were compared