1 reply to this topic

[Kedi]

Hello,

 

currently I have the following problem, which I just cannot solve:

 

I want to use thermodynamic data provided by the FactSage data base within my Aspen Plus simulation. I am in posession of a full ChemApp as well as FactSage license and have done everything according to the Aspen Plus User Guide (see attachment). Now the chemsage file I generate with FactSage is recognised by Aspen and I can use a couple of Unit Operations (Heater, Mixer...), but those operations including chemical reactions do not work. Particularly the RGibbs model is a problem: Aspen can apparently not receive the Gibbs free energies for my components from the chemsage file and is asking for heat capacities and enthalpies of formation (DGFORM OR DGAQFM), which should be provided by the chemsage file. If I type them in manually (Methods -> Parameters -> Pure Components) the Aspen calculation collapses.

 

What am I missing? Has anybody done this? I would really appreciate if somebody could help me out!

 

Thanks a lot in advance!

Kedi

Attached Files

•  Using FACT and ChemApp with Aspen Plus.pdf   681.5KB   32 downloads

[Kedi]

Problem solved:

 

Apparently you HAVE to use the Aspen Plus/FACT/ChemApp model included in the Aspen Plus model library. Before I thought that would be optional and I could also use the regular RGibbs reactor.

 

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