Discrete Operations: 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

○ Max Allowable Working / Vessel Volume (%) The maximum allowable volume of vessel contents expressed as percentage of the volume of the vessel.	80.0	(0,100)
● Initial Working / Vessel Volume (%) The volume of vessel contents before the operation, expressed as percentage of the volume of the vessel.	00.0	(0,100)
● Final Working / Vessel Volume (%) The volume of vessel contents after the operation expressed as percentage of the volume of the vessel.	0.0	(0,100)
● Initial Working Volume The volume of vessel contents before the operation.	0.0	Positive
● Final Working Volume The volume of vessel contents after the operation.	0.0	Positive
◙ Bulk Density (g/L) The bulk density of the discrete entities.	850.0	Positive
◙ Bulk Volume per Entity (L) The bulk volume of the discrete entities divided by the number of discrete entities.	10.0	Positive

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

Specification Choices / Comments

Note this tab is being used by several operations, including Batch Storage (Discrete, by Volume), Tablet Coating, etc.

The user can either specify the bulk density of the packed entities or the “bulk” volume taken up by each entity.

In Design Mode, the Maximum Allowable (%) value is used for sizing the equipment. If multiple operations in the same procedure recommend sizing values, the procedure selects the maximum.

In Rating mode, the Maximum Allowable (%) acts as a constraint that generates a warning when it is violated.