Melhoria da eficiência energética de ventiladores de forno de reaquecimento

Abstract

This work has the overall goal of seeking the reduction of electricity consumption in the rolling of rebar and wire rod process. The work was developed with the support of a steel company. The methodology of the study was the analysis of the auxiliary systems identifying losses to subsequently eliminate them or reduce them. The ventilation systems of the reheat furnace were analyzed, measurements of physical quantities from the oven and its fans were taken and thereafter, some alternatives proposals to reduce energy consumption were be made. In addition, some situations in which the auxiliary systems may be switched off were identified. After the alternatives identified, the proposed project, with their gains, were made for the company to analyze the attractiveness. The application of frequency inverter to control the flow and use of natural draft proved attractive return solutions for reducing electricity consumption.