Aspen Physical Property System - Physical Property Models

Chung-Lee-Starling Thermal Conductivity
The main equation for the Chung-Lee-Starling thermal conductivity model is:
Where:
f1
f2
�
270 3 Transport Property Models
=
=
=
�(p = 0) can be calculated by the low pressure Chung-Lee-Starling model.
The molar density can be calculated using an equation-of-state model (for
example, the Benedict-Webb-Rubin equation-of-state). The parameter pr is
the reduced dipolemoment:
The polar parameter � is tabulated for certain alcohols and carboxylic acids.
For low pressures, f1 is reduced to 1.0 and f2 is reduced to zero. This gives
the Chung-Lee-Starling expression for thermal conductivity of low pressure
gases.
The same expressions are used for mixtures. The mixture expression for � (p
= 0) must be used. (See Chung-Lee-Starling Low-Pressure Vapor Viscosity.)
Where: