Abstract
evaporator capacities than the low-pressure refrigerants. For a 7.0 °C evaporator exit saturation temperature, and using R22 as a reference, R32, R410A, and R290, had a greater capacity by 14.5%, 10.7%, and 6.0%, while R134a and R690a had a lower capacity by 5.2% and 9.5%, respectively.