Abstract
The present work is focused on the thermal performance of a hydrocarbon blend refrigerant in a domestic refrigerator for retrofitting applications. The pull-down test and energy consumption test are carried out under the standard test conditions using propane/butane (49%:51%) refrigerant mixture. Experiments are conducted separately with R134a and HC blend refrigerants under no-load condition. A comparison of the achieved freezer temperature for R134a and HC blend is made through experimental investigation. The HC blend is observed to have a temperature of 3°C lesser due to high latent heat. The refrigerator temperature is also compared for both the refrigerant R134a and HC blend. Daily power consumption of the HC blend system is lower by 17.86% when compared to the R134a system. The coefficient of performance value of the HC blend system is observed to be around 40% more than that of R134a system of the same cooling capacity.
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