Performance Analysis of Vapour Compression Refrigeration System by Using R134a and Blend of R290 and R600a
DOI:
https://doi.org/10.53555/nnmce.v2i3.359Keywords:
Vapour Compression Refrigeration, R290, R600a, R134a, COP, refrigerating effectAbstract
In the present scenario, most of the industrial and domestic refrigerators working on the vapor compression refrigeration cycle are equipped with R134a as a refrigerant. R134a has zero ozone depletion potential, but it has a high global warming potential of 1300. Hence there is a need identified for an alternative refrigerant to R134a. This research work is focused on performance analysis of a vapor compression refrigeration system with regard to COP, refrigerating effect, and compressor work for two refrigerants, i.e., R134a and a blend of R290 and R600a in the proportion of 60%+40%, respectively, as an alternative refrigerant. Performance measures like compressor discharge temperature are also considered for analysis. The results of the blend of R290 and R600a are compared with halogenated hydrocarbon R134a. Trials are conducted for R134a and a blend of R290 and R600a. Results showed that COP for R134a refrigerant increases with decreases in evaporator temperature, and for a blend of R290 and R600a, it tries to remain constant. The maximum values of COP achieved for R134a and the blend of R290 and R600a are 3.11 and 4.09, respectively.
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