| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
60 Years of Taking Aluminum Smelting Research and Development from New Zealand to the World: An LMD Symposium in Honor of Barry J. Welch
|
| Presentation Title |
A Pragmatic Model for Bath Temperature Evolution during Alumina Feeding |
| Author(s) |
Kurian J. Vachaparambil, Stein Tore Johansen, Asbjørn Solheim, Kristian Etienne Einarsrud |
| On-Site Speaker (Planned) |
Kurian J. Vachaparambil |
| Abstract Scope |
In this paper we present the advances made towards including a model for bath temperature variations in the pragmatic framework for alumina feeding which was presented in TMS 2022. The framework utilizes a coarse grid with special numerical techniques to allow for faster than real-time simulations.
Based on the concepts of pragmatism in industrial modelling, the spatial and temporal evolution of the bath temperature is modelled. The bath temperature model considers the effect of ohmic heating, heating of the cold alumina particles which are fed, alumina dissolution, heat lost through sidewalls, top canals, and metal as well as via the anodes. The alumina dissolution and distribution are connected to the energy balance as the bath temperature impacts the solubility and the physical properties that controls dissolution. Accordingly, we can see some changes to the dynamics of the aluminium reduction cell. The model runs typically much faster than real time. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Nanotechnology, Aluminum, |