International Scientific Journal

Authors of this Paper

External Links


Viscosity is an important thermophysical property of fluids. Viscosities of refrigerants were predicted based on friction theory combined with the Lemmon and Span short reference equation of state. This model is valid for the temperature up to 397 K and pressure up to 40 MPa, which cover both the subcritical and supercritical regions. Experimental data were further used to validate the model. Under all test conditions, the accuracy is better than 6%, which is acceptable in most practical applications.
PAPER REVISED: 2015-05-05
PAPER ACCEPTED: 2015-05-12
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Issue 4, PAGES [1293 - 1296]
  1. Quinones-Cisneros, S. E., et al., The Friction Theory (f-Theory) for Viscosity Modeling, Fluid Phase Equilibria, 169 (2000), 2, pp. 249-276
  2. Quinones-Cisneros, S. E., et al., The Friction Theory for Viscosity Modeling: Extension to Crude Oil Systems, Chemical Engineering Science, 56 (2001), 24, pp. 7007-7015
  3. Vogel, E., et al., Reference Correlation of the Viscosity of Propane, Journal of Physical and Chemical Reference, 27 (1998), 5, pp. 947-970
  4. Rainwater, J. C., et al., Second Viscosity and Thermal-Conductivity Virial Coefficients of Gases: Extension to Low Reduced Temperature, Physical Review A: Atomic, Molecular and Optical Physical, 36 (1987), 8, pp. 4062-4066
  5. Lemmon, E. W., et al., Short Fundamental Equations of State for 20 Industrial Fluids, Journal of Chemical and Engineering Data, 51 (2006), 3, pp. 785-850
  6. Kumagai, A., et al., Saturated Liquid Viscosities and Densities of Environmentally Acceptable Hydrochlorofluorocarbons (HCFCs), International Journal of Thermophysics, 14 (1993), 2, pp. 339-342
  7. Assael, M. J., et al., Measurement of the Viscosity of R11, R12, R141b and R152a in the Temperature Range 270-340 K at Pressures up to 20 MPa, International Journal of Thermophysics, 15 (1994), 4, pp. 575-589
  8. Kumagai, A., et al., Revised Viscosities of Saturated Liquid Halocarbon Refrigerants from 273 to 353 K, International Journal of Thermophysics, 21 (2000), 4, pp. 909-912
  9. Dwain, E. D., et al., Measurements of the Viscosities of Saturated and Compressed Liquid R134a, R123,and R141b, Fluid Phase Equilibria, 88 (1993), 10, pp. 251-262
  10. Takahashi, M., et al., Viscosities of Gaseous R13B1, R143B, and R152A, Journal of Chemical and Engineering Data, 32 (1987), 1, pp. 98-103
  11. Wang, X. P., et al., Viscosity of Gaseous HFC245fa, Journal of Chemical and Engineering Data, 55 (2012), 1, pp. 496-499
  12. Meng, X. Y., et al., Compressed Liquid Viscosity of R245fa and R236fa, Journal of Chemical and Engineering Data, 56 (2011), 12, pp. 4956-4964
  13. Laesecke, A., et al., Viscosity of Fluorinated Propane Somers. 2. Measurements of Three Compounds and Model Comparisons, Journal of Chemical and Engineering Data, 43 (1998), 1, pp. 84-92

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence