Information Technology Reference
In-Depth Information
Figure 13.3
Fortran coding of objective function.
Figure 13.4
Setup to vary independent variable.
Having defined the objective function, it is necessary to develop a model of the
process, which, given the feed, the desired product composition, the reflux ratio, the
feed location, and the number of theoretical stages, will calculate the reboiler and
condenser duties. As an example, the DSTWU block will be used to create the model.
A characteristic of the block is that the number of stages is a continuous variable. If
a constraint is required, the folder Constraints is selected and variables are selected in
