Electrodialysis: Oper. Conds Tab

ElectrodialysisOperConds.jpg
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

 

Valence
The ion charge of a component.

1.0

1-8

% Removal
The removal percentage of a component.

0.0

[0-100]

Design Component
The component used in design mode for the calculation of the membrane area. Click on the list box to bring up a list of available components in order to select one.

<none>

Any Pure Component

Current Density (A/m2)
The current density of a cell pair.

50.0

positive

Current Efficiency (%)
The pcurrent efficiency.

90.0

(0-100]

Pair Voltage Drop (V)
The voltage across the stack.

1.0

Positive

Current per Stack (A)
The the electric current flow across the stack of membrane pairs.

0.0

Positive

Filtrate Recovery (%)
The percentage of the feed flow that goes to the diluate stream.

50.0

(0-100)

Concentration Factor
The ratio of the feed/concentrate stream flowrates.

2.0

Positive

Design Component Concentration (g/L)
The concentration of the key component either in the filtrate or the concentrate stream.

100.0

Positive

For Stream Filtrate
Solvent specification refers to the filtrate stream.

-

-

Pair Voltage Drop (V)
Solvent specification refers to the concenrate stream.

-

-

Power (kW)
The power consumption of the process.

0.0

Positive

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