Continuous Vessel Operations (Rating Mode): Volumes Tab

Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable	Default Value	Range

◙ Residence Time (h)	1.0	Positive
◙ Working / Vessel Volume (%) The volume of vessel contents as percentage of the volume of the vessel.	90.0	(0,100)
● Working Volume (L) The volume of vessel contents.	0.0	Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Specification Choices / Comments

In this case (Rating Mode of equipment sizing the user specifies either the Residence Time or the Working / Vessel Volume ratio.

When the Working to Vessel Volume Ratio is calculated, the program checks to make sure its value is between the minimum and maximum working to vessel volume ratio limits of the equipment.