In this work, 25 two-phase and 136 vapor-phase pvTz measurements for the binary system containing 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) and 1,1-difluoroethane (R152a) are presented. The reported measurements were carried out using an isochoric apparatus along seven isochores with densities equal to (12.694, 13.812, 13.914, 14.527, 16.273, 16.942, 19.086) kg¹ m⁻³ and specific volumes equal to (0.052395, 0.059026, 0.061453, 0.068837, 0.071869, 0.072401, 0.078775) m³ kg⁻¹ for temperatures from (263 to 373) K for seven R1234yf mole fractions (0.1342, 0.2508, 0.3975, 0.4501, 0.5784, 0.7850, 0.8981). The vapor-liquid equilibrium properties of the R1234yf + R152a binary system were assessed from the two-phase experimental data by employing the flash method with the Peng-Robinson equation of state and the multi-fluid Helmholtz-energy explicit model available in REFPROP 10.0. The vapor-liquid equilibrium properties derived from the two-phase measurements agreed with the literature experimental properties. The vapor-phase measurements were compared with the properties calculated from the Peng-Robinson equation of state and REFPROP 10.0, obtaining low deviations.

在这项工作中，介绍了包含 2,3,3,3-四氟丙烯-1-烯 (R1234yf) 和 1,1-二氟乙烷 (R152a) 的二元系统的25 个两相和 136 个气相pvTz测量值。所报告的测量是使用等容装置沿七个等容线进行的，密度等于 (12.694, 13.812, 13.914, 14.527, 16.273, 16.942, 19.086) kg ¹  m ^-3和比容等于 (0.506,706.06.05.05.086 ) kg ¹ m ^-3 , 0.071869, 0.072401, 0.078775) m ³  kg ^-1对于七个 R1234yf 摩尔分数（0.1342、0.2508、0.3975、0.4501、0.5784、0.7850、0.8981）的温度（263 至 373）K。R1234yf + R152a 二元系统的汽液平衡特性是通过使用闪法和 Peng-Robinson 状态方程和 REFPROP 10.0 中可用的多流体亥姆霍兹能量显式模型从两相实验数据评估的。从两相测量得出的汽液平衡特性与文献实验特性一致。将气相测量值与根据 Peng-Robinson 状态方程和 REFPROP 10.0 计算的特性进行比较，获得低偏差。