Devecioğlu, Atilla G.Oruç, Vedat2024-02-232024-02-232021Devecioğlu, A.G. ve Oruç, V. (2021). Experimental comparison of R404A and R452A in refrigeration systems. Science and Technology for the Built Environment, 27(1), 61-69.2374-47312374-474Xhttps://www.tandfonline.com/doi/full/10.1080/23744731.2020.1796419https://hdl.handle.net/11468/13372In this study, R404A and R452A refrigerants used in refrigeration systems were compared experimentally. The energy performance of the system was investigated for widely used evaporation temperatures (−5, 0, +5 °C) and condenser temperatures (25, 35, 45 °C). It was seen that COP was higher but power consumption of system was lower using R452A as a substitute for R404A. When R452A was used, COP was improved about by 3% to 8% compared to R404A. Furthermore, cooling capacity decreased about by 2% for condenser temperatures of 25 and 35 °C while it increased at condenser temperature of 45 °C. Power consumption of system was also reduced nearly by 5%. Mass flow rate of refrigerant was lower when the system was operated with R452A. In the middle term, R452A could be a suitable alternative refrigerant for commercial refrigeration applications due to its low GWP value and better energy performance compared to R404A.eninfo:eu-repo/semantics/restrictedAccessCommercial refrigerationSupermarket refrigerationDrop-inGwpreplacementsAlternativesMixturesArticle2716169WOS:0005595758000012-s2.0-8508945491710.1080/23744731.2020.1796419Q2Q3