|About this Abstract
||2014 TMS Annual Meeting & Exhibition
||Celebrating the Megascale: An EPD Symposium in Honor of David G.C.Robertson
||A Computational Fluid Dynamics Model for a Novel Flash Ironmaking Process
||Miguel Olivas-Martinez, Silvia Perez-Fontes, Hong Yong Sohn
|On-Site Speaker (Planned)
A computational fluid dynamics model for a novel flash ironmaking process based on the direct gaseous reduction of iron oxide concentrates is presented. The model solves the three-dimensional governing equations including both gas-phase and gas-solid reaction kinetics. The turbulence-chemistry interaction in the gas phase is modeled by the eddy dissipation concept incorporating chemical kinetics. The particle cloud model was used to track the particle phase in a Lagrangian framework. A nucleation and growth kinetics rate expression is adopted to calculate the reduction rate of magnetite concentrate particles. Benchmark experiments reported in the literature for a nonreacting swirling gas jet and a nonpremixed hydrogen jet flame were simulated for validation. The model predictions showed good agreement with measurements in terms of gas velocity, gas temperature and species concentrations. The relevance of the computational model for the analysis of a bench reactor operation and the design of an industrial-pilot plant is discussed.
||Planned: A print-only volume