HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

I don’t understand this sentence in the simulation

2009-04-14View Original

Thread Content

ATTEMPT TO USE MODEL ELECNRTL WITHOUT A SOLVENT. ACTIVITY COEFFICIENT OF UNITY IS USED I hope the prawns can solve this problem
Reply #22009-04-14
Meaning: Try a solvent-free electrolyte model, with uniform activity coefficients. Did you forget to define the solvent? Add the component water.
Reply #32009-04-14
(aspen) Try the ELECNRTL model approach without solvent (for simulation calculations). And it tells you that the activity coefficient of the model unit you defined has been used. In other words, the component library you defined has their data, but when calculated using the ELECNRTL method, it may not be calculated because the solvent is not defined. The key is that you didn't make it clear at all whether the result of your operation was successful or an error occurred.
Reply #42009-04-14
The result is of course unsuccessful. Materials and energy are not conserved.
Reply #52009-04-14
Check to see if the input has an electrolyte reaction set up, also. ELCTRNRTL is used in liquid
Reply #62017-01-14
What if the operation is successful. But why is the temperature at the top of the tower higher than at the bottom?
Reply #72017-01-18
It seems that choosing the right physical property method is the key.
Reply #82017-02-24
How to define solvent? The input is complete.
Reply #92017-04-22
If it succeeds, does it mean there is no problem?
Reply #102017-05-05
Then who can guarantee: lol, no one has seen your simulation file

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.