ASPEN simulation
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I was wondering if anyone else noticed this during simulations: when using ASPEN for simulations, the thermodynamic properties of water seem to differ from experimental data (the thermodynamic model I use is NRTL). I would appreciate it if those with more experience could help me figure this out. I’m not sure how to choose the appropriate thermodynamic model data for simulations; this has been bothering me lately. Please assist me, everyone
The property method was selected incorrectly: it should be steam-TA or Steam-NBS
There’s nothing wrong with choosing nrtl either; if only water is taken into account, Aspen will presumably use steam-ta to calculate the relevant data for water. Of course, it’s possible to modify the method for calculating free water, or one can simply select the properties related to water within the property calculation methods