specify correlations for mixtures

[andr1976]

Hi ,

Is there a way in the PropertyCorrelationsPackage instantiation where it can be specified which correleations to use e.g. for viscosity, thermal conductivity and surface tension?

pseudos = ChemicalConstantsPackage(names=pseudo_names, MWs=pseudo_MWs, Tbs=pseudo_Tbs,
                                   atomss=pseudo_atoms,
                                  Tcs=pseudo_Tcs, Pcs=pseudo_Pcs, omegas=pseudo_omegas,
                                  similarity_variables=similarity_variables)
# Add the pure components and the pseudocomponents to create a new package of constant values
# which will be used by the phase and flash objects
constants = pure_constants + pseudos
# Obtain the temperature and pressure dependent objects
properties = PropertyCorrelationsPackage(constants=constants)
# This is the feed composition

[CalebBell]

Hi Anders,
The following example shows how to provide pre-configured pure component correlations to the PropertyCorrelationsPackage interface. The default methods are only selected if property estimators are not provided on construction. The same applies to the mixture objects although there is not an example for that - you can configure e.g. your own ViscosityGasMixture and provide it to the constructor of PropertyCorrelationsPackage and it will be used.

https://thermo.readthedocs.io/Examples/Working%20with%20Heat%20Transfer%20Fluids%20-%20Therminol%20LT.html

You can go from thermo's defaults to your own defaults by running
print(your_property_correlations_package)
and hardcoding its output in your program then changing the selected methods in that string as you please.

Sincerely,
Caleb