Vapor-liquid equilibrium measurements and assessments of Low-GWP absorption working pairs (R32+DMETEG, R152a+DMETEG, and R161+DMETEG) for absorption refrigeration systems

Abstract This research aims to develop novel binary working pairs using low-GWP refrigerants (R32, R152a, or R161) and one chemical absorbent (DMETEG) for absorption refrigeration systems. The solubility data were determined from 293.15 to 343.15K using a static method and were correlated with the five-parameter non-random two-liquid (NRTL) activity coefficient model with an average relative absolute error of