This bibliographical research aimed to analyze the performance coefficient of refrigerants
R410A and R32 in an ideal vapor compression refrigeration cycle, assuming that the
performance coefficient is of such importance in the analysis of refrigeration facilities. In
the research, we selected R-410A and R32 fluids, considering that they are the most
indicated to replace R-22, which should fall into total disuse in the year 2040, given its
aggression to the ozone layer. What motivated us to carry out this research was the
incessant search to find a fluid that had a low impact on the environment, our performance
and future training in the undergraduate course in Mechanical Engineering, the
performance of our activities in the area of HVAC and refrigeration. For the elaboration of
this work, we carried out several searches, of scientific productions, that dealt with the
evaluation of the operational parameters, that presented points such as: refrigeration
capacity, power consumed by the compressor and the performance and discharge
developed by the compressor. The impact on the environment was carried out by studies
that used the TEWI method, performing an analysis of the performance of both
refrigerants. According to the research carried out, the tests performed show a variation in
the evaporation temperature between -7 and 7 °C, while the condensing temperature was
maintained at 41 °C. In addition to the evaporation temperature, the compressor operating
frequency was also varied from 45 to 60 Hz. The results obtained by SILVA (2018),
during his research, showed that the power consumed by the compressor using R32
increased from 3 to 5% when compared to R410A. The cooling capacity of R32 was
approximately 3 to 7% greater than for R410A. The COP was 2 to 8% higher using R32.
The discharge temperature of the compressor operating with R32 was approximately 20 to
30 °C higher than for R410A. Considering the studies carried out, it appears that R32 has a
superior performance than R410A, considering the smaller amount of fluid used in the
system and the smaller GWP that this fluid presents.
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