Vary - Column Parameter Selection
This window is used to select a column parameter as the variable to be adjusted using a controller, multivariable controller or optimizer.
Usage
From the Vary - Parameter Window, select the column whose parameter is to be varied. Click on the "Parameter..." text to display this window.
The column parameters are grouped into different categories as displayed in the Parameter list box. Select the category to which the parameter to be selected belongs. You might have to make similar selections in the other two list boxes until the actual parameter is selected.
If you have selected any of the tray properties, you must enter the appropriate Tray Number. Similarly, if you have selected either the "Selected Component Flowrates" or "Compositions" sub-categories of the tray vapor and liquid properties, you need to specify the Starting Component. The Ending Component defaults to the starting component and can be changed if desired.
For properties like volume, composition and flowrate you need to specify the Wet/Dry Basis and the "Distillation Curve" parameter requires a selection for Volume Percent Distillate.
Note that the data entry windows guide you through the required entries by making appropriate selections available as you make choices in the list boxes. When you return to the Vary - Parameter Window, the selected parameter will be displayed in place of the original "Parameter..." text.
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