Relatively small changes in glass composition might have drastic consequences on the evaporation rates of volatile glass components in glass melting furnaces. Transpiration evaporation tests have have been applied to measure the impact of minor glass composition changes on the evaporation rates of volatile glass components in stimulated furnace atmospheres. The results of these laboratory evaporation tests were used to develop and optimise a universally applicable evaporation model to estimate evaporation rates and dust emissions for industrial glass melt furnaces. Mass transfer relations for the transport of volatile glass melt species into the turbulent gas phase were used to upscale the evaporation models valid for lab tests to applications for industrial glass furnaces.
