Three dimensional model for current efficiency based on the rate of aluminium transfer to anode

摘要

The already Published two dimensional model is developed to three dimensions to estimate current efficiency of the Aluminium Cell.The transfer rate of aluminium from cathode to anode is estimated as a result of diffusion and mass transfer under velocity field.The mixing differential equation in the homogeneous conditions is solved numerically with suitable boundary conditions at Al / electrolyte and electrolyte / anode interfaces.The diffusion coefficient of aluminium in the electrolyte is taken as 1~*10~~-8 m/s~2 and the maximum solubility of aluminium in electrolyte as 0.03 wt./wt.