Abstract
In the recent years, the Chinese aluminum industry has started to extensively use irregular top surface cathode blocks in its new cell designs. The increase popularity of these new types of cell designs in China is explained by the fact that they can be operated at a much lower cell voltage.
The cell voltage can be reduced because irregular top cathode surface designs seem to increase the MHD cell stability which allows the cell to be operated at a reduced ACD. No satisfactory explanation as to why the usage of irregular top cathode surface promotes MHD cell stability has been presented up to now.
The present work concentrates on the influence of the cathode surface geometry on the metal pad current density as potential cause of the change in the MHD cell stability behavior.
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References
J. Zhou et al., “Depth Analysis and Potential Exploitation of Energy-Saving and Consumption-Reduction of Aluminum Reduction Pot,” TMS Light Metals2012, 601–606.
N. Feng et al., “Research and Application of Energy Saving Technology for Aluminum Reduction in China,” TMS Light Metals2012, 563–568.
N. Feng et al., “Energy Reduction Technology for Aluminum Electrolysis: Choice of the Cell Voltage,” TMS Light Metals2013, 549–552.
V. Bojarevics, “MHD of Aluminium Cells with the Effect of Channels and Cathode Perturbation Elements,” TMS Light Metals2013, 609–614.
S. Ruan et al., “Production Application Study on Magneto-Hydro-Dynamic Stability of a Large Prebaked Anode Aluminim Reduction Cell,” TMS Light Metals2013, 603–607.
M. Dupuis, “Development of a 3D Transient Thermo-Electric Cathode Panel Erosion Model of an Aluminum Reduction Cell,” COM Light Metals2000, 169–178.
M. Dupuis, V. Bojarevics and D. Richard, “Impact of the Vertical Potshell Deformation on the MHD Cell Stability Behavior of a 500 kA Aluminum Electrolysis Cell,” TMS Light Metals2008, 409–412.
M. Dupuis, “Mathematical Modeling of Aluminum Reduction Cell Potshell Deformation,” TMS Light Metals2010, 417–422.
M. Dupuis and V. Bojarevis, “Retrofit of a 500 kA cell design into a 600 kA cell design,” ALUMINIUM, 87 (1/2), 2011, 52–55.
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Dupuis, M., Bojarevics, V. (2014). Influence of the Cathode Surface Geometry on the Metal Pad Current Density. In: Grandfield, J. (eds) Light Metals 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48144-9_81
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DOI: https://doi.org/10.1007/978-3-319-48144-9_81
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48590-4
Online ISBN: 978-3-319-48144-9
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