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Viscosity of R134a, R32, And R125 at Saturation

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Abstract

This paper reports the results of the measurement of the viscosity of R134a close to the saturation line in the vapor phase. The new measurements were carried out in a vibrating-wire viscometer specially constructed for the purpose, and the results have an accuracy of ±2%. In addition, the opportunity is taken to present a reevaluation of earlier measurements along the saturation line of the viscosity of R32 and R125. Improved equations of state for these fluids are now available and can be employed to generate improved values for the viscosity.

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Authors and Affiliations

  1. Universidade Aberta, Rua da Escola Politécnica, 147, 1250, Lisboa, Portugal and

    C. M. B. P. Oliveira

  2. Department of Chemical Engineering and Chemical Technology, Imperial College, Prince Consort Road, London, SW7 2BY, United Kingdom

    W. A. Wakeham

  3. Centre de Química Estrutural, Institute Superior Técnico, 1096, Lisboa, Portugal

    C. M. B. P. Oliveira

Authors
  1. C. M. B. P. Oliveira
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  2. W. A. Wakeham
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Oliveira, C.M.B.P., Wakeham, W.A. Viscosity of R134a, R32, And R125 at Saturation. International Journal of Thermophysics 20, 365–373 (1999). https://doi.org/10.1023/A:1022640617694

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  • DOI: https://doi.org/10.1023/A:1022640617694

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