Abstract
An experimental apparatus for measuring the thermal conductivity of liquids by the transient hot-wire method was constructed and tested with toluene as a standard liquid. Measurements were performed on R22, R142b, and R152a. The thermal conductivities of mixtures of R142b and R152a with R22 were also measured by varying the weight fraction of R22. Experiments were performed in the range from −50 to 50°C and from 2 to 20 MPa and the measured data are analyzed to obtain a correlation in terms of temperature, pressure, and composition of the mixture. While the thermal conductivity of R22 + R152a mixtures varies monotonously with composition, that of R22 + R142b mixtures turned out to go through an extremum value. The accuracy of our measurements is estimated to be within 2%.
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References
Y. S. Touloukian, P. E. Liley, and S. C. Saxena, Thermophysical Properties of Matter (TPRC Data Series), Vol. 3. Thermal Conductivity-Nonmetallic Liquids and Gases (IFI/Plenum Data Corp., New York, 1970).
J. Yata, T. Minamiyama, and S. Tanaka, Int. J. Thermophys. 5:209 (1984).
B. R. Fellows, R. G. Richard, and I. R. Shankland, in Proceedings of the 21st International Conference on Thermal Conductivity, C. J. Cremers and H. A. Fine, eds. (Plenum, New York, 1990), p. 311.
M. J. Assael, E. Karagiannidis, and W. A. Wakeham, Int. J. Thermophys. 13:735 (1992).
M. J. Assael and E. Karagiannidis, unpublished work.
C. A. Nieto de Castro, S. F. Y. Li, A. Nagashima, R. D. Trengove, and W. A. Wakeham, J. Phys. Chem. Ref. Data 15:1073 (1986).
J. J. de Groot, J. Kestin, and H. Sookiazian, Physica 75:454 (1974).
P. G. Knibbe, Int. J. Heat Mass Transfer 29:463 (1986).
H. E. Khalifa, J. Kestin, and W. A. Wakeham, Physica 97A:273 (1979).
J. M. N. A. Fareleira, S. F. Y. Li, and W. A. Wakeham, Int. J. Thermophys. 10:1041 (1989).
R. G. Richard and I. R. Shankland, Int. J. Thermophys. 10:673 (1989).
D. Jung and R. Radermacher, ASHRAE Trans. Res. 97:90 (1991).
NIST, NIST Standard Reference Database 23 (1991).
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Paper dedicated to Professor Joseph Kestin.
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Kim, S.H., Kim, D.S., Kim, M.S. et al. The thermal conductivity of R22, R142b, R152a, and their mixtures in the liquid state. Int J Thermophys 14, 937–950 (1993). https://doi.org/10.1007/BF00502116
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DOI: https://doi.org/10.1007/BF00502116