Two approaches to modelling the heating of evaporating droplets

Two approaches to modelling the heating of evaporating droplets have beenwidely used in engineering applications. In the the requirement that droplet evaporation rates, inferred from steady-state equations for mass and heat balance, should be the same. The second approach is based on the direct calculation of the distribution of temperature inside droplets assuming that their thermal conductivity is not in are compared for the case of stationary droplets in conditions relevant to Diesel engines. It is pointed out that although the trends of time evolution offirst approach the heat rate supplied to the droplets to raise their temperatures, q˙d, is derived fromfinitely large. The implications of these two approachesq˙ d predicted by both approaches are similar, actual values of q predicted droplet surface temperatures, radii and evaporation times. Possible reasons for these differences are discussed.˙ d predicted by these approaches can be visibly different. This difference can lead to noticeable differences in