Failed to differentiate the equation ExternalMedia.Media.CoolPropMedium.setState_ph_ about externalmedia

[jowr]

Maybe you could tell us what the problem is? Do you get an error message? Does it crash?

If the title of this post is the error message, you can tell from it that you are using incompatible state variables. I seem to remember that the Modelica.Fluid.Machines.SweptVolume model is built around a mass and energy balance that uses density and internal energy as state variables. However, you explicitly selected pressure and enthalpy which forces the Modelica compiler to try and rearrange equations leading to the missing derivative problem...

[casella]

@slamer59 what about @jowr's comments? Are you still interested in this issue?

Thanks

[casella]

Didn't get any feedback. @slamer59 please reopen if you are still interested.