Heating: Oper. Conds Tab

HeatingOperConds.jpg
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 Temperature (oC)
The temperature of the outlet stream.

25.0

Positive

Heating Duty (kcal/h)
The heat transfer rate of the heating agent.

0.0

Positive

Heating Agent Name
Indicates the heating agent that is used for the operation. Click on the list box to bring up a list of available heating agents in order to select one.

<Steam>

Any Heating Agent

Inlet Temp. (oC)
The inlet temperature of the heating agent.

152.0

Positive

Outlet Temp. (oC)
The outlet temperature of the heating agent.

152.0

Positive

Rate (kg/h)
The mass flow rate of the heating agent.

0.0

Positive

Heat Transfer Coeff. (kW/m2-°C)

1.5

Positive

Heat Transfer Effic. (%)
The heat transfer efficiency of the operation.

100.0

[0,100)

Pressure Drop (bar)
The heat transfer efficiency of the operation.

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.

0.0

Positive

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

240.0

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 Heating: Modeling Calculations.

Heating Specifications...

The user has the option to specify either the exit temperature or the heating duty.