Aspen Physical Property System - Physical Property Models

4 Nonconventional Solid
Property Models
This section describes the nonconventional solid density and enthalpy models
available in the Aspen Physical Property System. The following table lists the
available models and their model names. Nonconventional components are
solid components that cannot be characterized by a molecular formula. These
components are treated as pure components, though they are complex
mixtures.
Nonconventional Solid Property Models
General Enthalpy and
Density Models
4 Nonconventional Solid Property Models 295
Model name Phase(s)
General density polynomial DNSTYGEN S
General heat capacity
polynomial
Enthalpy and Density
Models for Coal and Char
ENTHGEN S
Model name Phase(s)
General coal enthalpy model HCOALGEN S
IGT coal density model DCOALIGT S
IGT char density model DCHARIGT S
General Enthalpy and Density
Models
The Aspen Physical Property System has two built-in general enthalpy and
density models. This section describes the general enthalpy and density
models available:
General Density Polynomial
DNSTYGEN is a general model that gives the density of any nonconventional
solid component. It uses a simple mass fraction weighted average for the
reciprocal temperature-dependent specific densities of its individual