Get properties from Aspen Plus

Hello Matlab community,

I want to use material properties from Aspen Properties V9 to calculate some dimensionless numbers. For example I want to get out the heat capacity, thermal heat conductivity, etc. of water at different temperatures and pressures. Is this possible?

Thank you for helping an inexperienced user.

Answer 1

[Prasanna]

Hi Andreas,

To create an integration between Aspen Properties V9 and MATLAB, you can use a component object model (COM) interface, which allows MATLAB to interact with Aspen Properties. You can use the ‘actxserver’ method in MATLAB to create a COM server, access and retrieve the properties from Aspen properties and then use the same in MATLAB. A sample script looks like the following:

% Create a COM server to interact with Aspen Properties 
aspen = actxserver('Apwn.Document'); 

% Open a new Aspen Properties document 
aspen.InitFromArchive2('YourAspenFile.apw'); 

% Retrieve specific properties 
Cp = aspen.Tree.FindNode('\Data\Properties\Cp').Value; % Heat capacity 
k = aspen.Tree.FindNode('\Data\Properties\ThermalConductivity').Value; % Thermal conductivity 

For more information regarding the functions used in the script, refer the following documentations:

• actxserver - https://www.mathworks.com/help/matlab/ref/actxserver.html
• aspen plus MATLAB link - https://www.mathworks.com/matlabcentral/answers/504450-how-to-use-aspen-plus-matlab-link

Hope this helps!