Heat Exchanging: 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

○ Flow Type Correction Factor	1.0	Positive
○ Heat Transfer Coeff. (kW/m²-°C)	1.5	Positive
● Heat Transfer Load (kcal/h)	0.0	Positive
◙ Min. Temp. Approach Allowed (°C)	5.0	Positive
◙ Hot Stream Temp. Decrease (°C)	20.0	Positive
◙ Cold Stream Temp. Increase (°C)	20.0	Positive
◙ Hot Stream Outlet Temp. (°C)	60.0	Real
◙ Cold Stream Outlet Temp. (°C)	20.0	Real
● Min. Achievable Temp. Approach (°C)	5.0	Positive
○ Tube (Main) Stream Pressure Drop (bar)	0.0	Positive
○ Shell (Side) Stream Pressure Drop (bar)	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 Heat Exchanging: Modeling Calculations.

•Performance Options...

The user has needs to specify only one of the performance options.