Column Downcomer Widths

Downcomer widths corresponding to the Number of Flow Paths selected in the Column Tray Rating Window are entered in these fields.

Widths at the top of the downcomer only are entered for vertical downcomers. For sloped downcomers, widths at both the top and bottom of the downcomer are entered.

The following entries are needed to define downcomers for the various flow paths (passes):

See Flow Paths for schematics illustrating the downcomer widths.