Energy Analysis of Low GWP Refrigerant Replacement to HFC 410A in Split Air Conditioner

In this study, the performance parameters of different refrigerants having low global warming potential have been evaluated theoretically and compared with R410A. This study performs on air conditioner having capacity of 1 TR using five diverse alternative refrigerants, namely R32, R447A, R447B, R452B and R454B. Calculations are as per EN 14,825 standard. Refrigerants considered for analysis have GWP values less than 750 that is as per EU regulations. Results show that R447A consumes least electrical energy and correspondingly highest COP. R32 system not only requires 33.46% less mass flow rate than R410A but has highest cooling capacity and least compressor displacement. At higher condensing temperature, R452B has the higher cooling capacity than R410A.