PρTx Measurements for (1,1,1,2-Tetrafluoroethane + Triethylene Glycol Dimethyl Ether) at High Haloalkane Content
Abstract
Densities in the liquid phase were measured for (1,1,1,2-tetrafluoroethane + triethylene glycol dimethyl ether) using a vibrating-tube densimeter. Three mixtures with a molar fraction of refrigerant of 0.9485, 0.9655, and 0.9798 have been considered at temperatures from (283 to 323 K) at pressures up to 6 MPa. Such ranges are approximately those of interest for a compression refrigeration plant. The data at each composition were correlated with a Tait equation, and the excess volumes were also provided.
†
Università di Padova.
*
To whom correspondence should be addressed. Tel: +39 049 827 6875. Fax: +39 049 927 6896. E-mail: [email protected].
‡
Laboratory for Thermophysical Properties LTP GmbH.
§
University of Oldenburg.
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