|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Aluminum Reduction Technology
||Modeling Anode Current Pickup After Setting
||Choon-Jie Wong, Yuchen Yao, Jie Bao, Maria Skyllas-Kazacos, Barry J. Welch, Ali Jassim
|On-Site Speaker (Planned)
With rising power costs in some countries and intermittency of power supply due to the increased penetration of renewable energy sources globally, the energy-intensive aluminum smelting process needs to adopt a power modulation strategy as a cost-saving and operational flexibility measure. However, present smelting cell control and design only allows limited flexibility for safe power modulation. With a cell distributed mass and energy balance model, this paper presents a study of the dynamics of key process variables, demonstrating the impact on ledge thickness and other cell operating conditions spatially and temporally. By better understanding the operating limits under modulation strategies, traditional voltage-based controls can be replaced with energy-based ones that reduce costs and emissions while retaining the lifespan of a smelting cell.
||Planned: Light Metals