Effect of the Architecture on Energy Efficiency of Electric Arc Furnaces of Conventional and Consteel Designs

Resumo

Heat transfer and arc efficiency of the electric arc furnaces (EAF) of Consteel (DSP-120co) and conventional (DSP-120ob) designs, equipped with the modern melting process intensification means, have been analyzed. For comparison purposes, EAFs of similar capacity and performance were used. As a result of analysis, it was found that the average arc efficiency of the Consteel DSP-120co furnace is 8 to 9% lower than that of the DSP-120ob furnace. The analysis of the EAF arc efficiency made it possible to explain the higher specific energy consumption by the DSP-120co compared to that of the DSP-120ob furnace.