Absorber: Equipment Tab

Variable Definitions, Ranges and Default Values

The following table shows the meaning of the variables appearing in this tab, as well as their default values and their generally acceptable range. Note that due to the manner by which the variables are used by the sizing and costing equations, the range of acceptable values may be further reduced.

Variable	Default Value	Range

◙ Column Diameter The diameter of the absorber column.	0.0 m	Positive
◙ Max Column Diameter The maximum diameter that a unit of this type is available for purchase in the market.	4.0 m	Positive
◙ Column Height The internal height of the absorber column.	0.0 m	Positive
● Column Volume The total volume of the vessel.	0.0 L	Positive
○ Design Options The user can select to set the pressure drop or the pressure drop over the length ratio. The values can be set in the Absorption Operating Conditions Tab.	Pressure Drop	Pressure Drop / Pressure Drop/Length

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Sizing: Design Mode

In Calculate (Design Mode), the user specifies the maximum column diameter and either the pressure drop or the pressure drop to length ratio from the Absorption: Oper. Conds Tab and the systems computes the number of units and the column diameter and height. For more information on the sizing of the absorber column, see Absorption: Modeling Calculations.

Sizing: Rating Mode

In User-Defined (Rating Mode), the user specifies values for Number of Units, column Diameter and Height.

Costing

The equipment purchase cost is based on the column diameter and height. It includes cost of the packing material and it is supplied by the built-in model assuming as material of construction CS.

For more information on this equipment, see Absorber or Stripper.

For information on the left-hand side variables and options, see Equipment Data Dialog: Equipment tab.