Abstract
Liquid viscosity and density of six binary mixtures of HFC-134a with glycols [ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol (400), and polypropylene glycol (2000)] have been measured in the temperature range from 273 to 333 K. The viscosity was measured by a rolling-ball viscometer calibrated with standard liquids of viscosities and densities (JS5, JS10, JS20, and JS50). The density was measured with a glass pycnometer. The uncertainties of the measurements were estimated to be less than 3.4 % for viscosity and 0.04 % for density, respectively. An equation is given to represent the obtained viscosity values as a function of weight fraction and temperature.
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References
Japanese Association of Refrigeration and Japan Flon Gas Association, Thermophysical properties of environmentally acceptable fluorocarbons-HFC-134a and HCFC-123 (1991).
A. Kumagai and S. Takahashi, Int. J. Thermophys. 12:105 (1991).
R. M. Hubberd and G. G. Brown, Ind. Eng. Chem. 15:212 (1943).
A. Kumagai and H. Iwasaki, J. Chem. Eng. Data 23:193 (1978).
C. Yokoyama and S. Takahashi, Abstract of Papers of the 29th High Pressure Conference of Japan (1988), p. 119.
E. Obermeier, S. Fischer, and D. Bohne, Ber. Bunsenges. Phys. Chem. 89:805 (1985).
A. Marchetti, C. Preti, M. Tagliazucchi, L. Tassi, and G. Tosi, J. Chem. Eng. Data 36:360 (1991).
R. Lee and A. S. Teja, J. Chem. Eng. Data 35:385 (1990).
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Kumagai, A., Mochida, H. & Takahashi, S. Liquid viscosities and densities of HFC-134a+glycol mixtures. Int J Thermophys 14, 45–53 (1993). https://doi.org/10.1007/BF00522660
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DOI: https://doi.org/10.1007/BF00522660