Journal article
Viscosity measurements and correlations of binary mixtures: 1,1,1,2-tetrafluoroethane (HFC-134a)+tetraethylene glycol dimethylether (TEGDME)
Center for Phase Equilibria and Separation Processes, Department of Chemical and Biochemical Engineering, Technical University of Denmark1
Department of Chemical and Biochemical Engineering, Technical University of Denmark2
CNRS3
Université de Pau et des Pays de l'Adour4
Center for Energy Resources Engineering, Centers, Technical University of Denmark5
This paper reports viscosity data for the binary system 1, 1, 1,2-tetrafluoroethane (HFC-134a), x(1), +tetraethylene glycol dimethylether (TEGDME), 1 - x(1). The measurements (200 data points) were obtained at various pressures (between 10 and 100 MPa) in the homogeneous liquid state from T= 293.15-373.15 K.
The measurements have been carried out with a failing body viscometer for four molar fractions x(1) =(0.28, 0.44, 0.63 and 0.88). The density values of this system were interpolated from previous results obtained at the laboratory. All of the available viscosity data, including pure HFC-134a and pure TEGDME (both previously studied at the laboratory), have been correlated using several viscosity models (mixing rules, self-refrencing model, hard-sphere theory, friction theory and free volume model).
The resulting models are presented and discussed in this work. (c) 2005 Elsevier B.V. All rights reserved.
| Language: | English |
|---|---|
| Year: | 2005 |
| Pages: | 1-8 |
| ISSN: | 18790224 and 03783812 |
| Types: | Journal article |
| DOI: | 10.1016/j.fluid.2005.03.030 |
