Degasifier: Equipment Tab

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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

 

Height
The height of the column

0.0 m

Positive

Diameter
The diameter of the absorber column

0.0 m

Positive

Max Diameter
The maximum diameter that a unit of this type is available for purchase in the market.

4.0 m

Positive

Height to Diameter
The height over the diameter ratio.

10.0

Positive

Rated Flux
The amount of liquid flow per area per hour.

10000.0 L/m2-h

Positive

Volume
The total volume of the column.

0.0 L

Positive

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 Diameter and Height to Diameter ratio and the system computes the Number Units and their dimensions (Height and Diameter). For more information on the sizing of the absorber column, see Degasification: Modeling Calculations.

Sizing: Rating Mode

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

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.

Other Variables

Rated Flux; is always an input variable and in Rating mode is used for calculating the Equipment Capacity Utilization.

For more information on this equipment, see Degasifier.

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