Bead Milling: Oper. Conds 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

○ Exit Temp. (C) The temperature of the final product at the end of the operation.	18.0	Positive
○ Agent Indicates the heat transfer agent used by the operation. Click on the list box to bring up a list of available heat transfer agents in order to select one.	Chilled Water	Agent Name
● Inlet Temp. (^oC) The inlet temperature of the heat transfer agent.	5.0	Positive
● Outlet Temp. (^oC) The outlet temperature of the heat transfer agent.	10.0	Positive
● Rate (kg/h) The mass flow rate of the heat transfer agent.	0.0	Positive
● Heating Duty (kcal/h) The heating duty of the heat transfer agent.	0.0	Positive
● Cooling Duty (kcal/h) The cooling duty of the heat transfer agent.	0.0	Positive
○ Power Type Indicates the power type that is used by the operation. Click on the list box to bring up a list of available power types in order to select one.	<Std Power>	Any Power Type
● Power (kW) The total power consumed for the operation (per cycle).	0.0	Positive
○ Dissipated to Heat (%) The percentage of total power consumed for this operation that turns into heat, thereby raising the temperature of the material contained in the equipment.	70.0	[0,100]
○ 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.	0.0	Positive
◙ Bead Milling Time (h) The actual duration of the operation (per cycle). Note that this value can only be calculated in Rating Mode.	4.0	Positive
○ Residence Time (min)	2.0	Positive

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 Bead Milling: Modeling Calculations.

•Duration Options...

The duration controls appear only if the procedure is in batch mode. In Rating Mode, you can set the process time (and the setup time), allow the process time to be calculated (based on the throughput), or allow the duration to match exactly the duration of another operation either in the same procedure or in another procedure. In Design mode, you must either specify the process time (and the setup time) or allow the duration to match exactly the duration of another operation (either in the same procedure or in another procedure).
If you choose to match the duration of this operation with the duration of another operation, you introduce a master-slave relationship between the two operations. 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 on master-slave relationship, see The Scheduling Tab.