The power density in glass melts has been studied at different arrangements of electrodes in all-electric melting furnace. Bottom, top and plate electrodes have been arranged into the model furnace in the form of hexahedron about the edge 1m. The results of the mathematical modelling showed that there has been very narrow relationship between the distribution in power density in the glass melt and the temperature field and therefore by means of suitable arrangement of electrodes is it possible to influence the intensity of convective currents of the glass melt. From evaluated dependencies of power density distribution near the tips of electrodes follows that incase of rod electrodes, the power density decreases with increasing length of electrodes.
