THE EFFECT OF CHANNEL WIDTH UNDER DIFFERENT BATH FORCES ON THE ALUMINIUM REDUCTION CELL CURRENT EFFICIENCY

A two-dimensional mathematical model is used to study the effect of changing channel width on current density, bath circulation and current efficiency. The current density decreases towards the side wall carbon blocks and this is more pronounced as the channel width increases. The gas bubbles induce...

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Bibliographic Details
Published inLight Metals 2009 pp. 545 - 550
Main Authors Doheim, M A, El-Kersh, A M, Ali, M M
Format Journal Article
LanguageEnglish
Published 01.01.2009
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Summary:A two-dimensional mathematical model is used to study the effect of changing channel width on current density, bath circulation and current efficiency. The current density decreases towards the side wall carbon blocks and this is more pronounced as the channel width increases. The gas bubbles induced force is more effective compared with electromagnetic forces (EMFs). The bath velocity values under various driving forces, bubble, EMFs, and the combined effect, were increased with reducing the channel widths. The reduction in channel width by 10 cm for the conditions representing the actual situation of the cell leads to increase the current efficiency by 0.4 %.
Bibliography:SourceType-Scholarly Journals-2
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ISBN:9780873397315
0873397312