A 2D axisymmetric two-phase model was developed to study the effect of an arc impingement on liquid metal inside electric furnace. In addition flow dynamics, covered heat transfer and magneto hydrodynamics metal. Through a parametric study, three different parameters were considered predict most important factors affecting overall behaviour process: gap, density gas, total current. Understandin...

Abstract Among the applied challenges associated with use of electric-arc plasma, most urgent is erosion electrodes in plasmatrons, which determine continuous operation an electric-plasma device. Investigation results on thermal state hot cathodes and their are presented depending main defining parameters, namely geometrical dimensions electrodes, Joule heating, current arc discharge, gas mediu...

The electric arc furnace (EAF) is used to produce high quality steel from steel scraps. The EAF uses plasma arc to generate heat for melting scarp or direct reduced iron (DRI). The liquid metal should be drained from the tap hole. Manual tapping operation of the EAF in the hot environment around the furnace is a potentially dangerous and time consuming task for the workers. Therefore, it is ess...

In an earlier paper [Kosch et al., 1998], simultaneous all-sky TV imager and Scandinavian Twin Auroral Radar Experiment (STARE) observations of an ionospheric plasma vortex located poleward of an auroral arc were presented. The vortex is associated with a sudden brightening of the arc and corresponds to an ionospheric region of diverging horizontal electric fields, which is equivalent to a down...

rapid expansions of new location-based services signify the need for finding accurate localization techniques for indoor environments. among different techniques, rss-based  schemes and in particular oneof its variants which is based on graph-based semi-supervised learning (g-ssl) are widely-used approaches the superiority of this scheme is that it has low setup/training cost and at the same ti...

Electric arc furnace (EAF) dust, together with a mill scale and coke were smelted in a laboratory electric arc furnace. These metallurgical wastes consist of a many different phases and elements, making the reaction process complex. Thermo-chemical analysis of the reactions in metal, slag, and gas phases was done, and used for modeling of the mixture composition and energy consumption required ...