[bobim]

Nice to cross your path, I got the first one to kickstart myself some years ago (and still struggling with evaporation / condensation).

Would you recommend the second to introduce a colleague to OpenModelica? He is into gPROMS but will lose access to the software at retirement.

Sidenote: invest in software with freedom to operate and good knowledge reusability.

[michaeltiller]

Modelica by Example is the most recent and free, so I would recommend that.