Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7175447 | International Journal of Refrigeration | 2018 | 7 Pages |
Abstract
Saturated liquid densities and bubble point pressures for binary mixtures of 1,1,1,2-tetrafluoroethane (HFC134a)â+âpropane (HC290) were measured using a compact single-sinker densimeter. The temperature range was from 253 to 293 K and mole fractions of HFC134a were 0.105, 0.197, 0.331, 0.387, 0.536 and 0.557. The standard uncertainties were estimated to be less than 5 mK for temperature, 1âkPa for pressure, 0.003 for mole fraction, and 0.02% for density. The experimental results were reproduced by VNDS equation and our modified Rackett equation. The saturated pressures data were correlated by the PR-Soave-vdW equation. Good agreement between values of calculation and experiment were found.
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Authors
Huiya Li, Xueqiang Dong, Haiyang Zhang, Quan Zhong, Hao Guo, Yanxing Zhao, Jun Shen, Maoqiong Gong,