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ISSN Druckformat: 1093-3611
ISSN Online: 1940-4360
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MODELLING OF INDUSTRIAL AC-ARCS
ABSTRAKT
An improved Channel Arc Model for simulation of AC arcs on ordinary PC's is presented. In this model the arc is treated as a cylindrical current conductor with uniform radius and a prescribed radial temperature distribution. In order to verify the model, laboratory arcs with I mrs ≈ 1000 A, as well as industrial arcs with I mrs ≈ 100 kA, are simulated and compared to measured values. Assuming symmetrical furnace conditions, the three-phase electric circuit is first simplified to a one-phase description which is compared to values from an industrial submerged arc furnace. In order to generalize the model, and to be able to simulate also asymmetrical furnace conditions, the complete three-phase circuit is included and results obtained from the three-phase simulations are compared with one-phase simulations. In addition, the effect of a charge current, which bypasses the arc, is shown in the three-phase description.
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Saevarsdottir Gudrun, Electric and Thermal Operations of Furnaces for Ferroalloys Production, in Handbook of Ferroalloys, 2013. Crossref
-
Fulcheri Laurent, Fabry Fréderic, Takali Sabri, Rohani Vandad, Three-Phase AC Arc Plasma Systems: A Review, Plasma Chemistry and Plasma Processing, 35, 4, 2015. Crossref
-
Gueye P., Cressault Y., Rohani V., Fulcheri L., A simplified model for the determination of current-voltage characteristics of a high pressure hydrogen plasma arc, Journal of Applied Physics, 121, 7, 2017. Crossref
-
Gutsol Alexander F., Gangoli Shailesh P., Transverse 2-D Gliding Arc Modeling, IEEE Transactions on Plasma Science, 45, 4, 2017. Crossref
-
Sanchez J. L. G., Conejo A. N., Ramirez-Argaez M. A., Effect of Foamy Slag Height on Hot Spots Formation inside the Electric Arc Furnace Based on a Radiation Model, ISIJ International, 52, 5, 2012. Crossref
-
Gueye P, Cressault Y, Rohani V, Fulcheri L, MHD modeling of rotating arc under restrike mode in ‘Kvaerner-type’ torch: part I. Dynamics at 1 bar pressure, Journal of Physics D: Applied Physics, 52, 13, 2019. Crossref
-
Chen Yuchao, Ryan Steve, Silaen Armin K., Zhou Chenn Q., Numerical investigation of AC electric arc plasma heat dissipation in EAF, Ironmaking & Steelmaking, 49, 3, 2022. Crossref