Magnetohydrodynamic Analysis of Load Shifting in Hall-Héroult Cells

Abstract The research project SynErgie aims to adapt large scale industrial processes a volatile supply of renewable energy which is expected for the future. aluminum electrolysis process one biggest consumers electric in Germany. aim vary its nominal power by ± 25%. This numerical study focuses on magnetohydrodynamic (MHD) behavior cells Trimet Aluminum SE Essen. To capture MHD driven flow and electrodynamics inside computational fluid dynamics (CFD) model developed OpenFOAM® framework. accounts influence neighboring cells, magnetization ferromagnetic materials, static ledge profile dynamic changes anode shape caused carbon consumption. simulation predictions show heave cryolite interface different line currents. analyze flexible operation, shifts currents are studied detail. After shifting current, directly whereas bottom reacts with delay time. leads locally uneven cathode distance (ACD) followed disturbed current distribution cell after current. anodic quantified model, can help operators identify whether increased shift or potential abnormalities like spikes. Graphical