EBA Column Loading: 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

○ Safety Margin (of Bed Expansion) (cm)	10.0	Positive
○ Bed Expansion Value (H/Ho)	3.0	Positive
○ Liquid Viscosity (cP)	1.5	Positive
○ Multiplier (A)	0.007	Positive
○ Waste Outlet Stream Indicates the output port that is connected to the waste outlet stream. Click on the list box to bring up a list of available output ports in order to select one.	<none>	Any Output Port
◙ Loading Time (min) The actual duration of the operation (per cycle).	60.0	Positive
◙ Fluidization Linear Velocity (cm/h)	300	Positive
◙ Residence Time (min)	3	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 EBA Column Loading: Modeling Calculations.

•Velocity / Time Options...

The user only needs to specify one of the following three variables: Fluidization Linear Velocity, Residence Time, Loading (Process) Time.

•Bed Expansion...

The bed expansion is either set by the user or calculated based on liquid viscosity and fluidization linear velocity.