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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 18b
SUMMARY:Numerical study and validation of electric arc heating in a steel ladle
DESCRIPTION:In this work, a 3D transient Computational Fluid Dynamics (CFD) model is developed to simulate arc heating process in a steel ladle. Three phases, air, slag and steel, are considered using Volume of Fluid (VOF) model. Temperature dependent material property are considered. Two off center slit plugs are placed at bottom of ladle. Discrete Phase Model (DPM) model is used to calculate bubble movement, coalescence and breakup during rising process. Heat transfer including radiation from electric arc to multiphases are modeled. Three electrodes are placed at top of ladle. Electrodes submerge length in slag layer is 3 inches. The channel arc model is employed to calculate the characteristics of electric arc. Al2O3 refractory brick and MgO-C refractory brick are include to calculate the heat loss through refractory wall. Based on the results, the dead zone of fluid flow is identified. Flow induced wall shear stress and multiphase distribution are observed. Temperature evolution in the bulk steel and slag are investigated. Temperature profile on refractory wall are studied. As for validation, temperature historical data is provided by industrial. Temperature measured at 2 ft away from refractory, 1 ft below steel surface and above one of the plug. Simulation shows good agreement on temperature between CFD prediction and industrial measurements.
CLASS:PUBLIC
DTSTART:20230614T115000
DTEND:20230614T121000
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