International Journal of Thermophysics

, Volume 14, Issue 6, pp 1131–1143 | Cite as

The viscosity of R32 and R125 at saturation

  • C. M. B. P. Oliveira
  • W. A. Wakeham
Article

Abstract

This paper reports new measurements of the viscosity of R32 and R125, in both the liquid and the vapor phase, over the temperature range 220 to 343 K near the saturation line. The measurements in both liquid and vapor phases have been carried out with a vibrating-wire viscometer calibrated with respect to standard reference values of viscosity. It is estimated that the uncertainty of the present viscosity data is one of 0.5–1%, being limited partly by the accuracy of the available density data. The experimental data have been represented by polynomial functions of temperature for the purposes of interpolation.

Key words

refrigerants R32 R125 viscosity 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    T. Retsina, S. M. Richardson, and W. A. Wakeham, Appl. Sci. Res. 43:325 (1987).Google Scholar
  2. 2.
    P. S. van der Gulik, in Experimental Thermodynamics III, Measurement of the Transport Properties of Fluids, W. A. Wakeham, A. Nagashima, and J. V. Sengers, eds. (Blackwell Scientific, Oxford, 1991), Chap. 4.Google Scholar
  3. 3.
    C. M. B. P. Oliveira and W. A. Wakeham, Int. J. Thermophys. 13:5 (1992).Google Scholar
  4. 4.
    M. J. Assael, C. P. Oliveira, M. Papadaki, and W. A. Wakeham, Int. J. Thermophys. 13:4 (1992).Google Scholar
  5. 5.
    M. O. McLinden, Rev. Int. Froid 13:149 (1990).Google Scholar
  6. 6.
    J. Kestin and W. Leidenfrost, Physica 25:1033 (1959).Google Scholar
  7. 7.
    J. Kestin, E. Paykoc, and J. V. Sengers, Physica 54:1 (1971).Google Scholar
  8. 8.
    S. Angus, K. M. de Reuck, and B. Armstrong, International Thermodynamic Tables of the Fluid State, Nitrogen, Vol. 6 (Pergamon Press, 1979).Google Scholar
  9. 9.
    S. Angus, K. M. de Reuck, and R. D. McCarthy, International Thermodynamic Tables of the Fluid State, Helium, Vol. 4 (Pergamon Press, 1979).Google Scholar
  10. 10.
    P. F. Malbrunot, P. A. Meuniere, G. M. Scotana, W. H. Mears, K. P. Murphy, and J. V. Sinka, J. Chem. Eng. Data 13:16 (1968).Google Scholar
  11. 11.
    R. Wheelhouse, private communication (1992).Google Scholar
  12. 12.
    O. Matar and D. Ripple, in press (1992).Google Scholar
  13. 13.
    D. Ripple, 1992, private communication.Google Scholar
  14. 14.
    D. E. Diller, in press (1992).Google Scholar
  15. 15.
    C. M. B. P. Oliveira and W. A. Wakeham, Proceedings of the PROTECT Workshop on Thermophysical Properties of Refrigerants, Ericeira, Portugal, Nov. (1992).Google Scholar

Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • C. M. B. P. Oliveira
    • 1
  • W. A. Wakeham
    • 1
  1. 1.Department of Chemical Engineering and Chemical TechnologyImperial CollegeLondonUK

Personalised recommendations