We determine the distribution of heat uxes of a furnace for burning ash via a simulation of a heat transfer problem. With paralleliza-tion of the problem this task can be done faster. Within the volume of the furnace, heat transfer is dominated by radiation, where heat conduction through the walls is important. Our mathematical model leads to a system of polynomials and the problem is reduced t...

In this paper a method to make inputting electrical model upon factors that affect melting process of high ultra power(UHP) electric furnace by using fuzzy rule and regression model is suggested and its effectiveness is verified with simulation experiment.

due to the high efficiency and low switching losses of resonant power convertors in comparison with switching convertors, nowadays there is a growing trend towards these convertors. however, because of the high frequency of switching in such convertors, it is quite difficult to present an efficient control method. in this paper, based on the state feedback method and using pole placement techni...

The glass melting process starts from a granular mixture of natural and synthetic raw materials (the so-called batch) and yields a thermally and chemically homogeneous melt made available at a well defined temperature level. The consecutive steps of glass fabrication (forming, annealing, etc.) are not within the scope of interest of this paper. Figure 1 illustrates how a continuously working gl...

Abstract Porosity in aluminum alloys is a great concern to the casting and automotive industry. In this publication, porosity formation air-melted vacuum induction melted (VIM) was studied compared understand its effect on microstructure mechanical properties of Al-7Si alloys. were cast at 700°C 900°C muffle furnace VIM furnace. Microstructural results show that refined eutectic silicon with sa...

Ni-Al-Mo based alloys can be used as materials for high temperature applications. They prepared by various techniques such an electron beam zone melting, which allows us to obtain the with a directionally solidified structure and unique properties. A plasma-melted Ni-Mo master alloy was preparation of experimental alloys. were melted in induction furnace then cast centrifugally form bars. These...