WU Xianzhong, CUI Xiaoyu, LI Meiling. Estimation of refrigerant mixture phase equilibrium with UNIFAC model[J]. CIESC Journal, 2005, (10): 1832-1836.DOI:
the vapor-liquid phase equilibrium thermodynamic properties of HCFCs refrigerant mixtures were estimated by using the UNIFAC model of group contribution.According to experimental data in literature
the interaction coefficients of the three main groups were obtained by mathematical fitting. Based on the interaction coefficients
the vapor-liquid phase equilibrium properties of the new refrigerant mixtures R32/R227ea
R227ea/R134a
R152a/R227ea and the ternary refrigerant mixture R32/R125/R134a were obtained and agreed well with the experimental data.The paper’s work provides a generalized method to predict new HFCs refrigerant mixture.The result can meet the demand of engineering designs which use new refrigerant mixtures as working fluids.