在243.168～293.182 K的温度范围内,采用自行设计搭建的高精度可视化相平衡实验系统测量了1,1,2,2四氟乙烷（R134）的饱和蒸气压实验数据,温度和压力的测量不确定度分别小于5 mK和0.5 kPa。用Wagner型方程对实验数据进行了关联,并与文献数据进行了对比,获得了良好的一致性。
The saturated vapor pressure data of 1,1,2,2-tetrafluoroethane （R134） were measured with an visual self-made apparatus. The uncertainties of the temperature and pressure measurement are less than 5 mK and 0.5 kPa, respectively. All the data were correlated with the Wagner equation and compared with the literature data. Good agreement is obtained.
参考文献
| [1] | James M. Calm .The next generation of refrigerants - Historical review, considerations, and outlook[J].International Journal of Refrigeration,2008(7):1123-1133. |
| [2] | Dong, X.;Gong, M.;Liu, J.;Wu, J. .Experimental measurement of vapor pressures and (vapor + liquid) equilibrium for {1,1,1,2-tetrafluoroethane (R134a) + propane (R290)} by a recirculation apparatus with view windows[J].The Journal of Chemical Thermodynamics,2011(3):505-510. |
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