Investigation of heat transfer conditions in a reverberatory melting furnace by numerical modeling

摘要

A numerical model based on the commercial software ANSYSFLUENT was used to analyze the heat transfer conditions in anindustrial reverberatory melting furnace. The model comprisesdifferent physical phenomena as gas flow, chemical reactions, i.e.combustion, conduction, radiation and latent heat release in themetal. The gas circulation was analyzed for different metal loadsand burner arrangements. The melting process inside the furnaceis inherently time-dependent, and a complete transient analysis isvery time-consuming. To study the impact of varied burnerpositions on the energy utilization, stationary solutions wereapplied, where the effect of melting heat was approximated byartificial heat sinks inside the metal. The results of the stationarysolutions were compared with fully transient results to guaranteethe transferability of the cost-efficient steady state calculations.The results stress the dominant effect of radiative heat transfer inthe melting process.