Low energy efficiency of foundry class electric arc steelmaking furnaces (EAF) mainly is caused by heat loss massive lining during forced downtime. A low-power transformer doesn’t allow, in the conditions classical technology, practice traditional water-cooled elements order to replace partially lining, what determines increased refractory consumption. The aim and savings. On basis numerical mo...

The recent years showed a significant increase both in energy costs and social awareness for environmental concerns. In the industrial sector, these aspects affected revenues and sustainability of the most intensive energy plants, such as steel mills. The present paper describes how simulation may powerfully support production planning and the related decisions. The applic...

In this paper, a new method is proposed for improving the fundamental extraction by wavelet transform. This method uses the discrete wavelet transform (DWT), FIR filter and inverse discrete wavelet transform (IDWT). In the proposed method, frequency interference is allowed to occur at the extracted frequency bands by DWT. DWT output signal is filtered by FIR then the IDWT is used to reconstruct...