Experimental study of R134A and R404A with poe oil in vapour compression system using water cooled serpentine condense

Many oil-related researches in the field of refrigeration have been conducted over the past years.The performance of the refrigeration system depends upon the quantity and the type of compressor oil, circulating in the system with the refrigerant. In this investigation the heat transfer characteristics of R134a and R404a with polyol ester oil at different oil concentration in vapour compression refrigeration system using water cooled serpentine condenser were analyzed experimentally and their results were compared. The result shows that R404a with 3% oil mixture works better in case of COP, heat transfer coefficient & freezing capacity than R134a, which is the current and commonly using refrigerant in home appliances. Due to the consistent performance of R404a, it can be preferred to R134a for the domestic appliances as well as commercial applications.