Effect of Fractionation on Ejector and System Performance in R1234yf/R32 Refrigeration System

The fractionation and the composition shift in the zeotropic refrigerant systems adds complexity in their design. Though several studies have shown that the zeotropic refrigerants can improve the system performance of a conventional refrigeration cycle, its impact on an ejector system performance has not been studied systematically. This study numerically investigates two different ejector systems along with a baseline system to understand if the fractionation can improve the performance of system that employs R1234yf/R32 zeotropic mixture as working fluid.