In this paper we compare different evolutionary algorithm approaches and parameters used to optimize the output of neural network committee trained on regression problems. This is especially useful for large and complex datasets. We used the methodology presented in this paper to optimize the output of the committee to predict the temperature in the electric arc furnace in one of the steelworks.

The article describes measurement of currents and voltages in submerged arc-resistance electric furnace which were done to identify arc parameters. Waveforms of registered currents and voltages have been shown. Characteristics of arc developed in original C# software have been presented. Streszczenie. Artykuł opisuje pomiary prądów i napięć w obwodzie pieca elektrycznego łukowo-oporowego z łuki...

This study investigates the potential to recover iron and chromium from a chromium-bearing carbon steel Electric Arc Furnace (EAF) slag. slag contains indeed about 30 wt.% Fe 2.5 Cr. However, minerals are intergrown at small scale (<100 µm) mostly contained in spinel phases which makes separation challenging. Several methods including Mössbauer spectroscopy, X-ray Diffraction, Scanning Elect...

This paper presents guidelines for the accurate evaluation of harmonics and flicker generated by ac electric arc furnaces, and its propagation through transmission and distribution systems. It is presented a typical case where a HV system supplies a high capacity arc furnace. The electrical network is simulated using the ATP version of the EMTP where a non-linear time-varying three-phase arc mo...

The aim of this research work was the evaluation feasibility to utilize industrial by-products, such as electric arc furnace steel slags, for sustainable concrete production. paper evaluated environmental and mechanical properties slags concrete, respectively. Specifically, release contaminants from investigated by leaching test fresh hardened were a mixture designed with partial substitution (...

Powderous crystalline materials of the composition Fe3−xMnxC have been prepared by first synthesizing Fe3C via mechanical alloying in a planetary mill followed by the addition of elemental manganese and arc-plasma melting or via the classic ceramic route in an electric furnace. The milling time for the synthesis of Fe3C was significantly reduced through adjusting the parameters of the planetary...

:the aim of this work is to investigate the influence of sodium oxide on properties of fresh and hardened paste of alkali-activated blast furnace slag from isfahan steel plant. the silica modulus (sio2/na2o) of activator was adjusted at 0.6 and a number of mixes were designed in such a way to contain different levels of sodium oxide including 1, 2, 3, 4, 5, and 6% by weight of dry slag. the mos...

The Fines2EAF project aims to increase the value of Electric Arc Furnace steelmaking residues by their internal recycling and reuse in form cement-free briquettes. sustainability for a profitable fines’ recirculation pass through conservation steel slag quality terms chemistry, physics eco friendliness. To do this, industrial trials have been conducted charging self-reducing slag-former briquet...