CORRELATION OF HIGH-PRESSURE THERMAL-CONDUCTIVITY, VISCOSITY, AND DIFFUSION-COEFFICIENTS FOR N-ALKANES

Thermal conductivity, viscosity, and self-diffusion coefficient data for liquid n-alkanes are satisfactorily correlated simultaneously by a method based on the hard-sphere theory of transport properties. Universal curves are developed for the reduced transport properties λ*, η*, and D* as a function of the reduced volume. A consistent set of equations is derived for the characteristic volume and for the parameters Rλ, Rη, and RD, introduced to account for the nonsphericity and roughness of the molecules. The temperature range of the above scheme extends from 110 to 370 K, and the pressure range up to 650 MPa. © 1990 Plenum Publishing Corporation.