Right-click the Thermodynamics node and select
Import Thermodynamic System (
Figure 6-2). Use the
Select File window to navigate to a thermodynamic system file and click
Open.
It is possible to manually modify the species properties, such as parameters and temperature-dependent functions, in the created Thermodynamic System by using Export Thermodynamic System and
Import Thermodynamic System. In the saved xml file from
Export thermodynamic system, there are all parameters and temperature-dependent properties for species, which are saved inside a
<Compound CompID="name"></Compound> block. For example, to edit the acentric factor of methane from 0.01141 to 0.2 perform the following steps
Here Tlb and T
ub defines the lower and upper bound for a temperature range, and a
1 to a
4 are the corresponding coefficients for a cubic polynomial as f(T) = a
0 + a
1T+ a
2T
2+ a
3T
3 fitted for that range. Multiple sequential ranges can be added by appending temperature ranges and coefficient sets. The
<Data></Data> block can be used to input data points directly.