โ Scribed by I.J. Dunn; E. Heinzle; B. Dettwiler; U. Saner; G. Ryhiner; J. Ingham
No coin nor oath required. For personal study only.
Dynamic models in chemical and biochemical engineering are usually non-linear, and the resulting differential equations require numerical solution. Recently it became possible to run simulation software on microcomputers such as the IBM-PC or Apple-Macintosh. Comparison is made for three languages: ISIM and ACSL for the IBM-PC and STELLA for the Macintosh. For ISIM and ACSL model equations have to be set up and directly typed in. Output may be in a tabular or graphic form. With ISIM interactive variation of parameters (pump on/off; stirrer speed etc.) during the run is possible. The graphic capabilities are limited. STELLA is programmed using an interactive graphical model procedure. The model can be presented either graphically or as a list of equations. Graphic output possibilities are excellent. These methods were used both at the ETH and Bradford Universitv in both universitv and short professional courses.
Based on this experience it was found that computer simulation modelling methods greatly enhance the learning process.
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