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Experimental comparison of R404A and R452A in refrigeration systems
Science and Technology for the Built Environment ( IF 1.7 ) Pub Date : 2020-08-13 , DOI: 10.1080/23744731.2020.1796419
Atİlla G. Devecİoğlu 1 , Vedat Oruç 1
Affiliation  

In 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 the coefficient of performance (COP) was higher but the power consumption of the system was lower when using R452A as a substitute for R404A. When R452A was used, the COP was improved by about 3% to 8% compared to R404A. Furthermore, the cooling capacity decreased by about 2% for condenser temperatures of 25 and 35 °C, while it increased at a condenser temperature of 45 °C. The power consumption of the system was also reduced by nearly 5%. The mass flow rate of the 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 global warming potential (GWP) value and better energy performance compared to R404A.



中文翻译:

R404A和R452A在制冷系统中的实验比较

在这项研究中,通过实验比较了制冷系统中使用的R404A和R452A制冷剂。针对广泛使用的蒸发温度(-5、0,+ 5°C)和冷凝器温度(25、35、45°C),研究了系统的能量性能。可以看出,当使用R452A代替R404A时,性能系数(COP)较高,但系统的功耗较低。使用R452A时,与R404A相比,COP大约提高了3%至8%。此外,在25和35°C的冷凝器温度下,冷却​​能力下降了约2%,而在45°C的冷凝器温度下,冷却​​能力却增加了。系统的功耗也降低了近5%。当系统使用R452A运行时,制冷剂的质量流量较低。在中期,

更新日期:2020-08-13
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