Analysis of the Water Droplet Evaporation Features with a Solid Nontransparent Inclusion in High-Temperature Gas Environment as a Part of University Research Work

摘要

This paper examines the features of the heating and evaporation of heterogeneous liquid (water) droplets (with the initial radius from 1.5 to 2.5 mm) in the combustion products of typical liquid combustible substances (acetone, technical ethanol, butane-propane gas mixture) and heated air explored as a part of university research work. The investigations have been performed by means of high-speed video recording and software "TEMA Automotive" and "Phantom Camera Control". The gas temperature varied from 300 to 850 K in the experiments. The characteristic times of droplet existence (complete evaporation) have been determined. The influence of radiative, convective and conductive heat transfer has been defined.