Can you change the upper bounds of some variables?

In Aveva Process Simulation, I need to simulate some units at pressures higher than 200 bar.

However, it seems 200 bar is the maximum value that the pressure variable can take, and with higher pressure the software does not solve.

I wonder how the upper bounds are decided (based on thermodynamic package maybe?) and if you can customize it.

Thank you!

Parents
  • Dear Seonggyun Kim,

    sorry that this reply is 7 month late, but for anyone else wondering:

    Yes, you can change the maximum pressure and temperature in the fluid configuration. If you are using a pre-made fluid, just copy it to your local simulation library and make the change there. 

    If you are performing simulation in such a high pressure range, make sure to use an appropriate thermo method (an equation-of-state) and consider enabling the high-pressure correction (when available). That will help with supercritical components.

    These questions are also answered best by the support team via email (for example simsci.emea@aveva.com. I "think" simsci.apac@aveva.com should also exist). They will reply very fast!

    Regards

    Jochen

  • Addendum: I also found out the there seems to be an inconsistency in some of the library models, insofar that they don't all use the variable limits from the fluidtype, but have hardcoded values. I will make sure this issue is addressed in an upcoming release of AVEVA Process Simulation.

Reply Children
No Data