Abstract
A static analytical device was used in this investigation to collect the vapor pressures of R245fa and R1234ze(E), as well as the vapor liquid equilibrium (VLE) data of their combination, when the temperature was altered from T = 293.15 K to T = 323.15 K. According to the existing literature, no informative data about this combination exists in this temperature range. We also present the uncertainty of the acquired temperature, pressure, and molar fraction of the experimental equipment for the scientific accuracy of the data. The phase equilibrium values were regressed by two models (Peng-Robinson EoS + van der Waals rule model and the Peng-Robinson EoS + Huron-Vidal rule with non-random two liquid activity coefficient model), respectively, to compare their correlation results, which shows that the performances of both models are satisfactory, with the second model being more appropriate because the deviation of pressure correlation is smaller. Zeotropic behaviors have been found during the temperature range.
Published Version
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