Heat and Mass Transfer During Heating of Coal-Water Fuel Partcales Coated with a Water Film in a Hight Temperature Gas Medium

Abstract

The problem has been solved numerically of ignition particles of coal-water fuel (CWF), covered with a water film. The effect of water evaporation in the process of preparation and thermal ignition of the fuel has been achieved. It has been shown that heating of the primary fuel takes place even in the near-surface water film conversion. The scale of the effect of heat transfer conditions on the temporal characteristics of the water film evaporation and ignition of coal-water fuel particles has been achieved.