Pull In: Oper. Conds Tab

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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

 

○ Pull In From Port / Stream
Indicates the input port that is connected to the pull in stream. If an input stream is already present at the selected port, then the button next to the selection is active. Click on the button to bring up the attached stream’s simulation dialog in order to provide the composition of the material being charged.

<None>

Any Input Port

○ Scalable
Check this box to scale operation data.

Yes

Yes/No

◙ Mass (kg)
The amount (in mass) of material being pulled-in.

0.0

Positive

◙ Volume (L)
The amount (in volume) of material being pulled-in.

0.0

Positive

○ Setup Time (min)
The amount of time (per cycle) spent before each operation is carried in preparation for the actual execution of the operation. It may involve actions like cleaning, vacuuming, setting up of equipment, etc. which the user opted not to model explicitly.

15.0

Positive

◙ Process Time (min)
The actual duration of the operation.

0.0

Positive

◙ Mass Flowrate (kg/h)
The rate of transfer of material (on a mass basis). If the number of units is greater than one, then this rate represents the mass transfer rate per unit.

600.0

Positive

◙ Volumetric Flowrate (L/h)
The rate of transfer of material (on a volume basis). If the number of units is greater than one, then this rate represents the volumetric transfer rate per unit.

0.0

Positive

○ Ignore Labor?
Check this box to ignore labor for this operation. This option is used only if the process time is set by a master-slave relationship.

Yes

Yes/No

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

Specification Choices / Comments

The following list describes the available specification choices in this tab; for more details on how these are implemented, see Pull In: Modeling Calculations.

•Pull In stream...

You must always select a pull-in stream. The pull-in stream can be either an input stream of the procedure that this operation is participating, or an intermediate stream, output of another procedure.

•Amount options...

There are four amount specifications options available:

a)  Amount can is specified in the input stream (as in Charge / Transfer In operations)

b)  Specify the pull in mass

c)   Specify the pull in volume

d)  Specify ‘Other’ properties

If you chose to specify the pull in mass / volume indicate whether the absolute amounts for flowrate are ‘Scalable’ with process throughput adjustment. (This implies that if the user chooses to adjust the process throughput by a factor the user-specified pull in mass/ volume will also be adjusted by the same factor.)

If the ‘Other’ amount option is chosen, click on the Advanced Options button to set the pull-in design specification, based on which pull-in amount will be calculated. See Pull-In Advanced Options Dialog.

•Duration options...

The duration of the operation can be calculated by the following ways:

a)  Set directly the user

b)  Calculated based on a user-specified mass or volume charge rate, or

c)   Tied up to another operation or operation sequence by exploiting the Master-Slave relationship. If you introduce a master-slave relationship, the program will match the setup time, the process time and the turnaround time of this operation (the ‘slave’) with the corresponding times of the reference operation (the ‘master’ operation). For more details on how to setup a master-slave relationship, see The Scheduling Tab.

See Also

●      Charge

●      Transfer In