About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Reduction Technology
|
Presentation Title |
Advanced Numerical Investigation of the Thermo-Electro-Mechanical Behaviour of Aluminum Reduction Cell during Preheating Phase |
Author(s) |
Simon Tremblay, Daniel Marceau, Omolbanin Saeidi, Antoine Godefroy, Sébastien Charest |
On-Site Speaker (Planned) |
Simon Tremblay |
Abstract Scope |
Traditional electrical preheating of electrolysis cells is a delicate process, which has a significant impact on cell life. The quality of this process is estimate using many factors such as the heat-up rate, the final cathode surface temperature, the anode current distribution and cathode lifespan. Hence, a better understanding of the cell behaviour is required to optimise this critical phase. To do so, a calibrated ¼ cell model has been improve by using a transient strongly coupled thermo-electro-mechanical approached in ANSYS™. Using the real air gap distribution at the cast iron to cathode interface, such coupling ensures continuous equilibrium between the evolutions of the contact condition and the electrical/thermal contact resistance during a given time step of preheating. The obtained results are in accordance with in situ measurements and allow very good prediction of the anode current distribution, cathode surface temperature as well as the stress distribution in the cathode/lining. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Modeling and Simulation, Other |