Publication Type Journal Article
Title Reference Correlations for the Density and Viscosity of Squalane from 273 to 473 K at Pressures to 200 MPa
Authors Sofia K. Mylona M. J. Assael Maria J. P. Comunas X. Paredes Felix M. Gacino Josefa Fernandez Jean Patrick Bazile Christian Boned Jean Luc Daridon Guillaume Galliero Jerome Pauly Kenneth R. Harris
Groups
Journal JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA
Year 2014
Month March
Volume 43
Number 1
Pages
Abstract This paper presents new reference correlations for both the density and viscosity of squalane at high pressure. These correlations are based on critically evaluated experimental data taken from the literature. In the case of the density, the correlation, based on the Tait equation, is valid from 273 to 473 K at pressures to 200 MPa. At 0.1 MPa, it has an average absolute deviation of 0.03\%, a bias of -0.01\%, and an expanded uncertainty (at the 95\% confidence level) of 0.06\%. Over the whole range of pressures, the density correlation has an average absolute deviation of 0.05\%, a bias of -0.004\%, and an expanded uncertainty (at the 95\% confidence level) of 0.18\%. In the case of the viscosity, two correlations are presented, one a function of density and temperature, based on the Assael- Dymond model, and the other a function of temperature and pressure, based on a modified Vogel- FulcherTammann equation. The former is slightly superior to the latter at high temperatures (above 410 K), whereas the reverse is true at low temperatures, where the viscosity is strongly temperature dependent. In the temperature range from 320 to 473 K at pressures to 200 MPa, the first correlation has an average absolute deviation of 1.41\%, a bias of -0.09\%, and an expanded uncertainty (at the 95\% confidence level) of 3\%. Below 320 K, deviations from the present scheme rise to a maximum of 20\%. In the temperature range from 278 to 473 K at pressures to 200 MPa, the second viscosity correlation has an average absolute deviation of 1.7\%, a bias of -0.04\%, and an expanded uncertainty (at the 95\% confidence level) of 4.75\%. (C) 2014 AIP Publishing LLC.
DOI http://dx.doi.org/
ISBN
Publisher
Book Title
ISSN 0047-2689
EISSN 1529-7845
Conference Name
Bibtex ID ISI:000334284400004
Observations
Back to Publications List