Experimental investigation on split type window Air conditioner using HFC and HC mixture as ecofriendly refrigerant alternate to HCFC-22

This paper reports on an experimental study evaluating a window air conditioner's performance when R152a/R290/R600/R600a refrigerant mixture (by various mass percentages) is used as possible alternative to R-22. Alternative refrigerants are local, cheap, and environmentally friendly. Unmodified R-22 AC was charged with R152a/R290/R600/R600a. During the experiment, parameters such coefficient of performance, refrigeration effect, pressure ratio, compressor discharge temperature, flow rate, power analyzed. The present work shows that R152a-15%/R290-15%/R600-35%/R600a-35% best-performing refrigerant. Proposed blends R22's were compared.