Measurements of the liquid viscosities of mixtures of n-butane, n-hexane, and n-octane with squalane to 30 MPa

A. Kumagai, Daisuke Tomida, Chiaki Yokoyama

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

The viscosities of liquid mixtures of n-butane, n-hexane, and n-octane with squalane that represent model mixtures of refrigerants with refrigeration oil were measured at temperatures between 273.15 and 333.15 K, and at pressures from 0.1 to 30 MPa, by using a falling body viscometer. The uncertainty of the measurements was estimated to be no larger than 2.9%. The experimental viscosity values were fitted to a Tait-like equation within 2.8%. There are larger deviations between the experimental data and calculated values predicted by the equation of Kanti et al., which is derived from the Flory theory. By introducing an interaction parameter of the energetic mixing rule into the equation, the deviations were significantly reduced.

Original languageEnglish
Pages (from-to)376-393
Number of pages18
JournalInternational Journal of Thermophysics
Volume27
Issue number2
DOIs
Publication statusPublished - 2006 Mar 1

Keywords

  • High pressure
  • Liquid mixture
  • Squalane
  • Viscosity
  • n-butane
  • n-hexane
  • n-octane

ASJC Scopus subject areas

  • Condensed Matter Physics

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