Batch Distillation: 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

○ Non-Volatile? Check this box to set the corresponding component as being non-volatile.	No	Yes/No
◙ Relative Volatility The relative volatility of a volatile component.	1.0	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
◙ Distillation Time (min) The actual duration of the operation.	360.0	Positive
○ Condenser Temp. (^oC) The temperature of the condenser.	45.0	Positive
○ Reboiler Temp. (^oC) The temperature of the reboiler.	100.0	Positive
○ Operating Pressure (atm) The operating pressure of the batch distillation unit.	1.0	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 Batch Distillation: Modeling Calculations.

•Duration Options...

The distillation time is either specified by the user or calculated.

•Relative Volatility...

The relative volatilities are either specified by the user or calculated by the program.