ENERGY AND ENVIRONMENTAL ASSESSMENT OF CO2 BOOSTER REFRIGERATION CYCLES WITH FLOODED EVAPORATORS AND PARALLEL COMPRESSOR FOR SUPERMARKETS IN TÜRKİYE

CO2 booster refrigeration systems have higher energy efficiency and are more environmentally friendly. Therefore, the CO2 booster refrigeration cycle with flooded evaporators and parallel compressors (BFP), BFP with mechanical subcooling (BFP-MSC), and BFP with evaporative cooling (BFP-EVC) are investigated for supermarkets in this study. For the first time in the literature, these systems are analyzed to present which system performs better in terms of energy and environmental performance for T & uuml;rkiye. According to the results of the investigation, BFP-MSC has a better coefficient of performance (COP) values than BFP, with up to a 16.67% increase at equivalent dry bulb temperatures. Meanwhile, BFP-EVC has the lowest annual energy consumption (AEC) in each city, followed by BFPMSC and then BFP. Annual savings obtained by BFP-EVC over BFP vary between 10.81% to 25.47%. Additionally, BFP-EVC offers more substantial savings in cities with lower humidity levels, as it was analyzed with respect to wet bulb temperatures.