DWSIM

What do you like best?

DWSIM is open source with a lot of functionality. I like the drag and drop system which allows a chemical or energy engineers as well as students building their chemical system in a few minutes. It has a rich Graphical User Interface. It allowed me to understand my system by using rigorous thermodynamic models and unit operation models. It has a simple and user friendly interface of defining the thermodynamic models and the properties of the input of the system and the dynamic simulation is quite accurate. i found the option of comparing the result using different built in property package. The output window is easy to understand and it has options of creating the output report.

What do you dislike?

New users often forget to define the property package adding it at the right of the window. At the middle of the simulation they find it but there is no undo option or any option of adding the property package. I found id most irritating.

Recommendations to others considering the product:

A highly resourced open source simulator for chemical and energy engineers.

What problems are you solving with the product? What benefits have you realized?

I am solving my chemical system specially an oil and gas refinery simulation. As it is free and allows me do almost all the development of the system, i found it convenient. With a number of built in property package this software has a tremendous impact in energy field.