|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||The Science of Melt Refining: An LMD Symposium in Honor of Christian Simensen and Thorvald Abel Engh
||Modelling of Hydrogen Removal in Gas Fluxing of Molten Aluminium
||Dag Mortensen, Jinsong Hua, Arild Håkonsen, Terje Haugen, John Olav Fagerlie
|On-Site Speaker (Planned)
Rotary degassing is one of the most commonly used methods for removing dissolved hydrogen and solid particles from molten aluminium. In order to improve the removal efficiency of both hydrogen and inclusions together with possibly lower investment and operating cost for the degassing equipment, modelling is a method that can be applied to study the process in detail. The removal efficiency depends on bubble size distribution, level of turbulence, residence time of bubbles in the melt etc. A modelling approach is presented including multiphase flow and mass transfer of impurities between the phases dependent on the solubility of the impurities in the different phases. A finite element model is used to solve the conservation equations and the impurity transport. A detailed 3D model for the in-line Hycast I-60 SIR melt refiner unit is used and results from the modelling are compared with experimental results.
||Planned: Light Metals