Influence of Rogue Droplet Atomization on Incineration Effectiveness

摘要

The paper gives results of measuring the trajectories and carbon destruction efficiency of fuel oil droplets in a 100 kW combustor, in an effort to better understand the influence of rogue droplet atomization on incineration effectiveness. The single monodisperse droplet streams were injected into swirling, turbulent gas flames with parametric variation in initial droplet size, velocity, spacing, and injection angle. Using a three-dimensional algorithm for modeling drag during the initial heating and evaporation of an isolated burning droplet, predictions of droplet trajectories are compared with experimental results. The correlation of droplet penetration with droplet incineration suggests that incinerator failure modes may be predicted on the basis of droplet atomization parameters and flame flowfield conditions. Further development of the droplet ballistics model to explore the effects of droplet interactions and gas flowfield turbulence is ongoing.