Skid for Disposable Large Bag: Equipment Tab

Variable Definitions, Ranges and Default Values

The following table shows the meaning of the variables appearing in this tab, as well as their default values and their generally acceptable range. Note that due to the manner by which the variables are used by the sizing and costing equations, the range of acceptable values may be further reduced.

Variable	Default Value	Range

◙ Holding Capacity (per Unit) The maximum container volume that the equipment can hold.	100.0 L	Positive
○ Mixing Feature Option If this option is not checked, then the equipment can be used for storage. In that case, a ‘Storage’ icon will be displayed. Also, an appropriate model will be used for the built-in equipment purchase cost. Check this option if the equipment can be used for mixing. In that case, a ‘Mixing’ icon that includes an impeller will be displayed. Also, the Agitate operation will be available in the Operations Sequence for the host procedure and an appropriate model will be used for the built-in equipment purchase cost.	TRUE	TRUE / FALSE
○ Temp. Control Feature Option Check this option to display a ‘Mixing Incl. Temp. Control’ icon that includes a jacket. In that case, the Heat and Cool operations will also be available in the Operations Sequence for the host procedure.	FALSE	TRUE / FALSE
○ Weighing Feature Option Check this option to display a ‘Mixing Incl. Weighing’ icon that includes a load cell.	FALSE	TRUE / FALSE
● Name (of Large Bag) The name of the selected container (a ‘Large Bag’ consumable).	Dft Large Bag
● Volume (of Large Bag) The internal volume of the selected container (a ‘Large Bag’ consumable).	100.0 L	Positive
● Maximum Allowable Working/Container Volume (of Large Bag) The maximum fill ratio of the selected container (a ‘Large Bag’ consumable).	100.00 %	Positive
○ Equipment Heat Capacity The product of total mass times the specific heat capacity of the equipment.	0 kcal/°C	Positive.

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

Consumable

This equipment requires use of a ‘Large Bag’ consumable. The default consumable used is a ‘Dft Large Bag’. For information on how to select a required consumable and additional consumables, see Disposable Generic Container Skid: Consumables Tab.

Sizing

Sizing will determine the number of equipment units (or skids or containers) required to retain the liquid volume dictated by the simulation. In both Design and Rating mode, the user must select the consumable (a member of the ‘Large Bag’ type) to be used by this equipment. Furthermore:

● In Design Mode, the program, based on the fill percent allowed (per container) and the total liquid volume required to be stored, will compute the total number of units (skids or containers) required.

● In Rating Mode, the user sets the holding capacity, container type and number of units. The holding capacity will be used to check if the selected container is valid. You cannot select a container whose volume is bigger than the equipment’s holding capacity. From the number of units and the maximum fill percent allowed per container, the program will determine if there’s enough storage capacity to hold the required volume. If not, an error will be generated mentioning that the maximum fill percent has been exceeded.

Costing

The equipment purchase cost is based on holding capacity. It is supplied by a built-in model for different holding capacities and equipment features and for CS as material of construction.

Other Variables

● Equipment Heat Capacity; the product of equipment mass times its specific heat capacity. It is used by operations that are executed in the vessel and involve heating and/or cooling. If part of the heat exchange is directed to the vessel, then this variable is used to estimate heating/cooling losses.

For more information on this equipment, see Skid for Disposable Large Bag.

For information on the left-hand and top right-hand side variables and options, see Equipment Data Dialog: Equipment tab.