How to use Aspen to regress XY data?
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It is a system composed of an organic acid and water; given the XY graph of water at a certain pressure, it is possible to read the data from this graph. However, there is only one pressure value and one set of XY values, with no temperature values corresponding to each point. I would like to ask how to use ASPEN regression in this situation? It doesn’t seem to be an option available in ASPEN’s property data regression settings; is there another workaround? Thank you all!
This is the regression of phase equilibrium experimental data; reference: Regression of thermodynamic experimental data (lecture notes) http://bbs.hcbbs.com/thread-438954-1-1.html
Thank you, hu_di. I’ve seen this; it can only contain PXY and TXY data. But it’s available in PROII; regression can be performed using measured P values and a set of XY data. I’m not sure if Aspen has a way to do this
Just look at the data during the regression process – the various options for Aspen will become clear then
In that case, it’s not possible to perform regression using XY graph data with Aspen’s built-in tools, right? Do you have to write programs by yourself?