Introduction
The cell voltage together with the current intensity are key values of
cell operation. They determine
the performance of the electrolytic pots concerning the aluminum production and energy consumption.
The goal is to determine the set values to operate the electrolytic cells
optimally in an technical and economical way.
On several pages of AlPrg the
user specifies input values and defines the layout of the electrolytic cell. AlPrg shows intermediate and final results
of the calculations:
AlPrg processes on this main page the pot voltage, the current intensity, the current efficiency, the heat loss and the energy consumption. The user decides which parameters are input values and calculated results. | |
on this page the user specifies parameters like the number and size of the anodes and the fanning factors. | |
The busbar system leads the electric current into the interior of the electrolytic cell to the electrolyte where the electrolytic process takes place. After producing aluminum the electric current flows out of the pot to the next electrolytic cell. The user determines the layout of the busbar system concerning voltage drops and contribution to the energy balance. | |
The Bath Voltage Page shows details of the voltage drop values in the electrolyte like the reversible decomposition voltage, the overvoltages and the ohmic voltage drop. | |
The energy balance determines the energy input into the electrolytic cell by the electric current and the electrochemical reactions. Energy is consumed by the electrolytic process to produce aluminum. The difference of energy input and consumption is lost to the environment as heat. The Energy Balance Page shows the individual energy input, consumption and output values. |
AlPrg shows parallel in diagrams (Haupin, Cell Geometry and Busbars Diagrams) the behavior of cell voltage parameters in dependence of the others. These diagrams and graphs are conceived as graphical user interfaces, e.g. the user may change values on the diagrams by mouse action.