Abstract

SCHNEIDER, André F. et al. Numerical and experimental results comparison of magnetic fields in aluminium eletrolysis cells. Rem: Rev. Esc. Minas [online]. 2008, vol.61, n.3, pp. 379-384. ISSN 0370-4467.  http://dx.doi.org/10.1590/S0370-44672008000300017.

Primary aluminum is produced in electrolytic cells where bath and metal flow due to Lorentz Forces. This work presents the experimental validation in real pots of a previously introduced 3-D magnetic field analysis methodology develop with the commercial Finite Element package ANSYS 9.0. Numerical results represent fairly the most important components for the simulated technology (B_X and B_Y), considering the measurement error e. Maximum differences observed between experimental and numerical results are 33% for B_X and 60% for B_Z. Correlation between measured and calculated values are up to 98,8% for B_X and 93,5% for B_Z.

Keywords : Aluminum reduction; electrolytic pot; magnetic fields; magnetic field measurements; numerical simulation; magnetohydrodynamics.