The gaseous PVTx properties of trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) + 1,1-difluoroethane (R152a) mixtures are measured at temperatures from 285.15 to 310.15 K in 5 K intervals, pressures of up to 0.8 MPa, and compositions of R1234ze(E) from 0.35 to 0.55 mass fraction using the Burnett isothermal expansion method. The uncertainties in the experimental device are estimated to be within ±10 mK for temperature, ±4.0 kPa for pressure, and ±0.3% for mass fraction. The densities and compressibility factors for each mixture are obtained, and the second and third virial coefficients of the gas virial EOS are fitted on the basis of experimental PVTx data. The relative errors between the calculated pressure from the fitted gas virial EOS and the experimental data of this study are within ±0.6%.

中文翻译：

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用Burnett方法对R1234ze（E）/ R152a系统的PVTx性能进行实验研究

反式-1,3,3,3-四氟丙烯（R1234ze（E））+ 1,1-二氟乙烷（R152a）混合物的气态PVTx性能在285.15至310.15 K的温度下以5 K的间隔测量，压力最高使用Burnett等温膨胀法测得的压力为0.8 MPa，R1234ze（E）的质量分数为0.35至0.55。实验装置中的不确定性估计在温度的±10 mK以内，压力的±4.0 kPa以内，质量分数的±0.3％以内。获得每种混合物的密度和压缩系数，并在实验PVTx的基础上拟合气体病毒EOS的第二和第三病毒系数数据。从拟合的气体病毒EOS计算得出的压力与本研究的实验数据之间的相对误差在±0.6％以内。