Batch Reaction Operations: 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

 

Final Temperature (oC)
The final temperature of vessel contents after the end of the operation.

25.0

Positive

Heating Duty (kcal/h)
The heat transfer rate of the heating agent, if a heating agent is used.

0.0

Positive

Cooling Duty (kcal/h)
The heat transfer rate of the cooling agent, if a cooling agent is used.

0.0

Positive

Heat Transfer Agent Name
Indicates the heat transfer agent used for the operation. Click on the list box to bring up a list of available heat transfer agents in order to select one.

<Chilled Water>

Any Heat Transfer Agent

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

Heat Transfer Efficiency(%)
The heat transfer agent efficiency. If the value is lower than 100% then an increased heat transfer agent amount will be calculated by the program to satisfy the required duty.

100.0

[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

Reaction Time (min)
The actual duration of the operation.

60.0

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

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

Specific Power (Per Volume) (kW/m3)
The power consumed for agitation per volume of material.

0.1

Positive

Total Power (kW)
The total power consumed for agitation (per cycle).

0.0

Positive

Power Per Unit (kW)
The power consumed for agitation per equipment unit.

0.0

Positive

Power Dissipation 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.

100.0

[0,100]

Gaseous Components Available to React
Check this box to consider gaseous components in reactions.

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 Stoichiometric Reaction Operations: Modeling Calculations.

Process Time Options...

a)     You can set the process time (Reaction Time).

b)  You can match the duration of this operation to the duration of another operation by introducing 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.

Gaseous Components...

If you don’t check the ‘Gaseous Components Available to React’ option, then only the liquid components will be considered for the reaction.