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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title Statistical Model for Forecasting the Cell Replacement Rate in an Aluminum Smelter
Author(s) Sebastien Guerard, Pascal Thibeault
On-Site Speaker (Planned) Sebastien Guerard
Abstract Scope Aluminum reduction cells have a limited life expectancy, and a significant proportion therefore needs to be replaced each year. This is a large expense for smelters, requiring careful long-term planning. Accurate forecasts can be hard to achieve, however, as they depend on the age distribution, design and operation conditions of the cells. In this work, we present a statistical model for forecasting the cell replacement rate. Pots are split into distinct populations, and a statistical distribution is then fitted to each one and used to produce detailed predictions. Special conditions, such as amperage creep, constraints on the start-up rate, or pot euthanasia, can also be taken into account, and the complete model is easily accessible through a web interface. Potential applications include producing detailed predictions for the coming years, exploring differences across designs or periods, rapidly detecting variations in the life expectancy, and planning replacement campaigns for future cell designs.
Proceedings Inclusion? Planned: Light Metals
Keywords Aluminum,


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Concentration Distribution of Carbon Particles in Aluminium Electrolysis Cells
Developing and Implementing an Efficient Forced Cooling Network at Aluminerie Alouette
Direct Production of Aluminum Manganese and Silicon Alloys in Aluminum Reduction Cells, A Laboratory Test
Direct Production of Aluminum Titanium Alloys in Aluminum Reduction Cells, A Laboratory Test
Empirical Prediction of Alumina Dissolution Rate in a Cryolitic Melt: Comparison with the Existing Literature
Imaging Alumina Distribution Using Low-voltage Anode Effect Detections in Anodic Current
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Mass Transport by Waves: Physical Model with Coalescence, Fragmentation, and Displacement on a Bath-metal Interface
Modeling of the Heat Exchange, the Phase Change, and Dissolution of Alumina Injected in Electrolysis Cells
Oxide Sensor Measurements and Simultaneous Optical Observations during Dissolution of Alumina in Cryolite Melt
Preparation of Aluminum Master Alloys by Electrolytic Co-deposition in Hall-Héroult Cells
Restart of Copper-insert Pots in EGA's High Amperage Potlines
Stabilizing a Low-dimensional Model of Magnetohydrodynamic Instabilities in Aluminum Electrolysis Cells
Statistical Model for Forecasting the Cell Replacement Rate in an Aluminum Smelter
Strategic Training and Development of Smelter Teams to Improve Business Outcomes
The Survivability of Aluminum Potlines after Lengthy Electrical Power Outages
Trace Elements in Aluminium Smelting Carbon Dust and Their Extraction

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