Abstract
In this paper, the (vapor+liquid) equilibrium data for (R13I1+R290) were measured by a vapor-recirculation apparatus at temperatures from (258.150 to 283.150)K. The VLE data were correlated by the Peng–Robinson equation of state with two different models, the van der Waals mixing rule, and the Huron–Vidal mixing rule involving the NRTL activity coefficient model. Good agreements were found between the calculated data and the experimental data. The maximum average absolute relative deviation of pressure (AARD p) was 0.48%, while the maximum average absolute deviation of composition (AAD y) was 0.0040. Meanwhile, zeotropic behavior can be found for the measured system in this study. The total combined standard uncertainties for temperature, pressure and composition measurements were ±5mK, ±0.0005MPa and ±0.005, respectively.
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