Abstract
This paper presents new absolute measurements of the thermal conductivity and of the thermal diffusivity of gaseous argon obtained with a transient hot-wire instrument. We measured seven isotherms in the supercritical dense gas at temperatures between 157 and 324 K with pressures up to 70 MPa and densities up to 32 mol · L−1 and five isotherms in the vapor at temperatures between 103 and 142 K with pressures up to the saturation vapor pressure. The instrument is capable of measuring the thermal conductivity with an accuracy better than 1% and thermal diffusivity with an accuracy better than 5%. Heat capacity results were determined from the simultaneously measured values of thermal conductivity and thermal diffusivity and from the density calculated from measured values of pressure and temperature from an equation of state. The heat capacities presented in this paper, with a nominal accuracy of 5%, prove that heat capacity data can be obtained successfully with the transient hot wire technique over a wide range of fluid states. The technique will be invaluable when applied to fluids which lack specific heat data or an adequate equation of state.
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C. A. Nieto de Castro and H. M. Roder, J. Res. Natl. Bur. Stand. (U.S.) 86:293 (1981).
H. M. Roder, C. A. Nieto de Castro, and U. V. Mardolcar, Int. J. Thermophys. 8:521 (1987).
U. V. Mardolcar, C. A. Nieto de Castro, and W. A. Wakeham, Int. J. Thermophys. 7:259 (1986).
J. C. G. Calado, U. V. Mardolcar, C. A. Nieto de Castro, H. M. Roder, and W. A. Wakeham, Physica 143A:314 (1987).
J. Kestin, R. Paul, A. A. Clifford, and W. A. Wakeham, Physica 100A:349 (1980).
M. J. Assael, M. Dix, A. Lucas, and W. A. Wakeham, J. Chem. Soc. Faraday Trans. 77:439 (1981).
A. A. Clifford, P. Gray, A. I. Johns, A. C. Scotts, and J. T. R. Watson, J. Chem. Soc. Faraday Trans. 77:2679 (1981).
E. N. Haran. G. C. Maitland, M. Mustafa, and W. A. Wakeham, Ber. Bunsenges. Phys. Chem. 87:657 (1983).
J. Millat, M. Mustafa, M. Ross, W. A. Wakeham, and M. Zalaf, Physica 145A:461 (1987).
B. A. Younglove and H. J. Hanley, J. Phys. Chem. Ref. Data 15:1323 (1986).
H. M. Roder and C. A. Nieto de Castro, in Thermal Conductivity 20, D. P. H. Hasselman and J. R. Thomas, Jr., eds., (Plenum Publishing Co., New York, 1989), p. 173.
C. A. Nieto de Castro, B. Taxis, H. M. Roder, and W. A. Wakeham, Int. J. Thermophys. 9:293 (1988).
H. M. Roder and C. A. Nieto de Castro, Cryogenics 27:312 (1987).
C. A. Nieto de Castro, JSME Int. J. 31:387 (1988).
J. M. N. A. Fareleira and C. A. Nieto de Castro, High Temp-High Press, 1989, in press.
H. M. Roder, J. Res. Natl. Bur. Stand. (U.S.) 86:457 (1981).
B. A. Younglove, J. Phys. Chem. Ref. Data 11:Suppl. 1 (1982).
H. M. Roder, R. A. Perkins, and C. A. Nieto de Castro, National Institute of Standards and Technology NISTIR 89-3902 (Oct. 1988).
J. Kestin, K. Knierim, E. A. Mason, B. Najafi, S. T. Ro, and M. Waldman, J. Phys. Chem. Ref. Data 13:229 (1984).
A. G. Clarke and E. B. Smith, J. Chem. Phys. 48:3988 (1986).
H. L. Johnston and K. E. McCloskey, J. Phys. Chem. 44:1038 (1940).
H. L. Johnston and E. R. Grilly, J. Phys. Chem. 46:948 (1942).
V. A. Rabinovich, A. A. Vasserman, V. I. Nedostup, and L. S. Veksler, in Thermophysical Properties of Neon, Argon, Krypton and Xenon, T. B. Selover, Jr., ed. (Hemisphere, Washinton, D.C., 1988), p. 203.
N. J. Trappeniers, in Proc. 8th Symp. Thermophys. Prop. J. V. Sengers, ed. (ASME, New York, 1982), p. 232.
H. M. Roder, Int. J. Thermophys. 6:119 (1985).
J. V. Sengers and J. M. H. Levelt Sengers, in Progress in Liquid Physics, C. A. Croxton, ed. (John Wiley & Sons, New York, 1978), p. 103.
H. M. Roder, J. Res. Natl. Bur. Stand. (U.S.) 87:279 (1982).
B. J. Bailey and K. Kellner, Br. J. Appl. Phys. 18:1645 (1968).
B. J. Bailey and K. Kellner, Physica 31:444 (1968).
L. D. Ikenberry and S. A. Rice, J. Chem. Phys. 39:156 (1963).
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Roder, H.M., Perkins, R.A. & Nieto de Castro, C.A. The thermal conductivity and heat capacity of gaseous argon. Int J Thermophys 10, 1141–1164 (1989). https://doi.org/10.1007/BF00500568
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DOI: https://doi.org/10.1007/BF00500568