When the temperature and vapor profiles are calculated for the first iteration of a distillation column, PRO/II uses any existing product stream data. These data may be user-supplied or generated by previous column calculations. If this is a new simulation and there are no product stream data, PRO/II uses the initial product rate estimates entered in the Column Feeds and Products Window.
However, under certain conditions (perhaps after a failure to converge), you may wish to use your product rate estimates to override the calculated product data.
Usage
From the Column Main Window, push the Initial Estimates button.
Uncheck the Use previous solution for initial estimate entry to have PRO/II use your specified product stream rate estimates to calculate the initial temperature and vapor profiles for the column.
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