Bath Voltage Page
The Bath Voltage Page contains all the components of the Ohmic Bath Voltage and Electrochemical Bath Voltage that sum up to the actual Bath Voltage (see Haupin Diagrams). On this page you find other parameters and values that are necessary to determine the bath voltage like current densities, surfaces and fanning factors.
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Bath Voltage Page. This page contains the components and intermediate values to determine the Bath Voltage. |
When you press the corresponding Show/Hide Button you may hide all components of the Bath Voltage. Only the Ohmic Bath Voltage and the Electrochemical Bath Voltage is the left on the Bath Volt Page.
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Ohmic and Electrochemical Bath Voltage. After pressing the corresponding Show/Hide Buttons the Bath Voltage Page shows only the Ohmic and Electrochemical Bath Voltage of the Bath Voltage Components. |
Ohmic Bath Voltage
The Ohmic Bath Voltage is the
sum of the Electrolyte Voltage Drop and the Bubble Voltage Drop. The
Electrolyte
Voltage Drop depends in essence on the interpolar distance (IPD or ACD anode cathode distance) and the electrical conductivity of the
electrolyte.
If you know or want to guess the value of the
Bubble Voltage Drop you select
"Input" on the Bubble Voltage Combo Box. If you select "Calculated" AlPrg
determines the Bubble Voltage Drop using a calculated value for the Bubble Layer Thickness
and the Gas Coverage.
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Bubble Voltage Drop. You decide with the Bubble Voltage Combo Box either to calculate the Bubble Voltage Drop value or to enter a value into the input field. |
Remark:
when you select "Input" or "Calculated"
you the change the value of the Bubble Voltage Drop from 0.1 to 0.25 V. Since on
the Cell Voltage Page the Cell Voltage is set
constant to 4.2 V AlPrg adapts the interpolar distance to keep the Cell
Voltage constant.
Electrochemical Bath Voltage
The Electrochemical Bath Voltage is the sum of several components: the
Reversible Decomposition Voltage and
Anodic and Cathodic
Overvoltages.
If you click on the input field of the Electrochemical Bath Voltage you select to determine the Bath Voltage with a constant
value for the Electrochemical Bath Voltage.
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Electrochemical Bath Voltage. The Electrochemical Bath Voltage is the sum of the Reversible Decomposition Voltage and the Anodic and Cathodic Overvoltages. If you click on the input field of the Electrochemical Bath Voltage the field is activated and you can enter a constant value of the Electrochemical Bath Voltage. |
Current Densities, Surfaces and Fanning Factors
This part of the Bath Voltage Page shows intermediate values (Current Densities and Surfaces) and Fanning Factors that AlPrg needs to calculate the values of the bath voltages. By clicking on the input field you activate the input field where you want to enter the values: the current densities or fanning factors.
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Input Fanning Factors of Current Densities. By clicking on the corresponding input field you select to enter the values for the Anodic and Cathodic Fanning Factors or for the Anodic and Cathodic Current Densities. |
AlPrg estimates the Anodic Fanning Factor using a method described in the theory part. You select this option with "Calculate" of the Anodic Fanning Factor Combo Box.
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Calculated Anodic Fanning Factor. If you select "Calculated" in the combo box the AlPrg estimates the Anodic Fanning Factor according to a method described in the theory part. |
For the Windows Display Setting see AlPrg Windows.