Physics-Based Modeling of Electric Operation, Heat Transfer, and Scrap Melting in an AC Electric Arc Furnace

2016 ◽  
Vol 47 (2) ◽  
pp. 1489-1503 ◽  
Author(s):  
Florian Opitz ◽  
Peter Treffinger
Keyword(s):  
Heat Transfer ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Scrap Melting

Electromechanical Coupled Response of the AC Electric Arc Furnace Structures During the Scrap Melting Process

2012 ◽  
Author(s):  
Eugenio G. M. Brusa ◽  
Nicola Bosso ◽  
Nicolò Zampieri ◽  
Stefano Morsut ◽  
Maurizio Picciotto
Keyword(s):  
Flexible Structures ◽  
Electric Circuit ◽  
Melting Process ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Design Parameters ◽  
Vertical Position ◽  
Arc Furnace ◽  
Hydraulic Actuator ◽  
Scrap Melting

Prediction of structural dynamics of the Electric Arc Furnace (EAF) is rather difficult, because of a number of phenomena occurring during the scrap melting process. Three large electrodes, corresponding to each phase of a AC circuit, are lowered by the main mast towards the scrap to activate the melting process, induced by the electric arc. Electric current fed to each electrode produces a strong magnetic field and applies an electromechanical force on the other electrodes. Arc voltage looks irregular upon time, even because of the scrap motion within the vessel and temperature growth. The vertical position of the mast is controlled by an hydraulic actuator. Nevertheless, a heavy vibration of the structures affects the regularity of the melting process. A fully coupled model of the whole system is herein proposed, through a multi-physics approach. A first analytical approach, describing the electric circuit of the whole system, is implemented into a Multi Body Dynamics (MBD) model of the EAF, while a reduced Finite Element Method (FEM) model of the flexible structures is used for a preliminary optimization of the design parameters. Electromechanical forces due to the mutual induction among the electrodes are computed and the dynamic response of the system is investigated. Proposed model allows a first refinement of the EAF design, although a complete experimental validation on the real machine has to be performed, in spite of problems due the extremely difficult accessibility of structures during the melting process.

Simulation of flow and heat transfer in the duct elbow of an electric arc furnace

2020 ◽  
Vol 56 (7) ◽  
pp. 2171-2184
Author(s):  
Ebrahim Hajidavalloo ◽  
Mohammad Rezaei ◽  
Afshin Gharib Mombeni
Keyword(s):  
Heat Transfer ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Flow And Heat Transfer

scholarly journals Modeling of a DC Electric Arc Furnace. Heat Transfer from the Arc.

2000 ◽  
Vol 40 (11) ◽  
pp. 1089-1097 ◽  
Author(s):  
Jonas Alexis ◽  
Marco Ramirez ◽  
Gerardo Trapaga ◽  
Pär Jönsson
Keyword(s):  
Heat Transfer ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace

Physical model experiment and theoretical analysis of scrap melting process in electric arc furnace combined blowing system

2019 ◽  
Vol 47 (7) ◽  
pp. 748-756 ◽  
Author(s):  
Xiaojun Xi ◽  
Shufeng Yang ◽  
Jingshe Li ◽  
Jinqiang Wu ◽  
Mengjing Zhao ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Physical Model ◽  
Model Experiment ◽  
Melting Process ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Scrap Melting ◽  
Physical Model Experiment

Study of heat transfer in a tubular-panel cooling system in the wall of an electric arc furnace

2019 ◽  
Vol 148 ◽  
pp. 43-56 ◽  
Author(s):  
Josué Contreras-Serna ◽  
Carlos I. Rivera-Solorio ◽  
Marco A. Herrera-García
Keyword(s):  
Heat Transfer ◽  
Cooling System ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace
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