Abstract
By means of the transient hot-wire method, the thermal conductivity of refrigerant R115 was measured over a wide region around the thermodynamic critical point. The enhancement of thermal conductivity was clearly observed at states close to the critical point. The thermal conductivity obtained for saturated liquid was compared to data by other authors with satisfactory agreement. For the thermal conductivity including the critical enhancement, equations are given according to the suggestion by J. V. Sengers. Comparison with measured data shows systematic deviations, with theoretical values being larger except for temperatures very close to the critical and densities above the critical.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Frigen-Fibel für die Kälte- und Klimatechnik (Farbwerke Hoechst, 1978), p. 79.
J. J. de Groot, J. Kestin, and Sookiazian, Physica 75:454 (1974).
C. A. Nieto de Castro, J. C. G. Calado, W. A. Wakeham, and M. Dix, J. Phys. E 9:1073 (1976).
H. M. Roder, J. Res. NBS (U.S.) 86:457 (1981).
R. C. Prasad, Measurement of the Thermal Conductivity of Fluids, Ph.D. thesis (University of New Brunswick, Frederiction, N.B., Canada, 1982).
Y. W. Song, J. L. Yu, and S. Y. Fu, J. Sci. Instr. 6:369 (1985) (Chinese).
E. Hahne and Y. W. Song, Wärme- und Stoffübertragung 24:79 (1989).
J. Kestin and W. A. Wakeham, Physica 92A:102 (1978).
J. J. Healy, J. J. de Groot, and J. Kestin, Physica 82C:392 (1976).
H. Matthias and H. J. Löffler, Thermodynamische Eigenschaften von Pentafluormonochloräthan (R115) (Technische Universität Berlin, Berlin, 1966).
P. M. Kesselmann, E. G. Porichanskij, V. K. Romanov, and A. V. Chumachenko, Teplofiz. Svoistva Veshchestv. Material. 11:27 (1977) (Russian).
J. Yata, T. Minamiyama, and S. Tanaka, Int. J. Thermophys. 5:209 (1984).
A. K. Voitenko and V. E. Geller, Izv. Vuzov. Energet. 5:93 (1978) (Russian).
ASHRAE, Thermophysical Properties of Refrigerants (American Society of Heating, Refrigerating and Air Conditioning Engineers, New York, 1976).
W. Tauscher, Kältetechnik-Klimatisierung 19:288 (1967).
J. V. Sengers, Ber. Bunsenges. Phys. Chem. 76:234 (1972).
R. S. Basu and J. V. Sengers, Proc. 7th Symp. Thermophys. Prop. (ASME, New York, 1977), p. 822.
J. V. Sengers, Int. J. Thermophys. 6:203 (1985).
R. S. Basu and J. V. Sengers, in Thermal Conductivity 16, D. C. Larsen, ed. (Plenum Press, New York, 1983), p. 591.
J. V. Sengers, J. T. R. Watson, R. S. Basu, B. Kamgar-Parsi, and R. C. Hendricks, J. Phys. Chem. Ref. Data 13:893 (1984).
C. Prasad and J. E. S. Venart, Int. J. Thermophys. 5:367 (1984).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hahne, E., Gross, U. & Song, Y.W. The thermal conductivity of R115 in the critical region. Int J Thermophys 10, 687–700 (1989). https://doi.org/10.1007/BF00507989
Issue Date:
DOI: https://doi.org/10.1007/BF00507989