By using a probability distribution function (PDF) a distribution can be generated based on user input of number of pseudo components, Mn, Mw, Mz and the minimum and maximum molar mass of pseudo component.
3 different models are currently implemented.
I recommend using the Gamma function.
Function |
Equation for the mass fraction |
Gamma |
|
Log-normal |
|
Beta |
|
Chi-Square |
|
To use the function use either the Distribution wizard or the calculation wizard.
Input
Argument |
Type |
Optional |
Description |
Model |
C#: string |
No |
The PDF model to use: Gamma, LnNormal, Beta or ChiSquare. |
Size |
C# : int |
No |
Number of pseudo components in the distribution. |
MolarmassMinimum |
C#: double |
No |
The molar mass of the smallest pseudo component. |
MolarmassMaximum |
C#: double |
No |
The molar mass of the largest pseudo component. |
Mn |
C#: double |
Yes |
Value of Mn. |
Mw |
C#: double |
Yes |
Value of Mw. |
Mz |
C#: double |
Yes |
Value of Mz. |
ProjectSheet |
C#: object |
Yes |
Lets the user set the project sheet to use. |
AdvVLXE |
C# : object |
Yes |
Advanced used. Reserved for use by VLXE. |
AdvUser |
C# : object |
Yes |
Advanced used. Reserved for the user. For example it can be used to force the function update. |
Extra
This function is defined in C# as:
public Object[,] Distribution(string Model, int Size, double MolarmassMinimum, double MolarmassMaximum, [In, Optional] object Mn, [In, Optional] object Mw, [In, Optional] object Mz, [In, Optional] object AdvVLXE, [In, Optional] object AdvUser)
Below is a screen dump where 100 pseudo components has been generated
