RT Journal Article
T1 Reference correlations for the density and viscosity of squalane from 273 to 473 K at pressures to 200 MPa
A1 Mylona, S.K.
A1 Assael, M.J.
A1 Pérez Comuñas, María José
A1 Paredes, Xavier
A1 Gaciño, Félix M.
A1 Fernández Pérez, Josefa
A1 Bazile, J.P.
A1 Boned, C.
A1 Daridon, J.L.
A1 Galliero, G.
A1 Pauly, J.
A1 Harris, K.R.
K1 Petroleum
K1 Fundamental constants
K1 Thermal instruments
K1 Organic compounds
K1 Equations of fluid dynamics
K1 Flow boundary effects
K1 Viscosity
AB 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-Fulcher-Tammann 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%.
PB AIP Publishing
SN 0047-2689
YR 2014
FD 2014-03-07
LK https://hdl.handle.net/10347/38757
UL https://hdl.handle.net/10347/38757
LA eng
DS Minerva
RD 28 abr 2026