Evaporation of Pure Droplets in the Convective Regime Under High Mass Flux
Woo, Meng Wai（Monash Univ, Dept Chem Engn）
Fu, Nan（Monash Univ, Dept Chem Engn）
Chen, Xiao Dong
- 化学化工－已发表论文 
An analytical expression analogous to the D(2) law was introduced, based on a mass transfer consideration, to describe the evaporation of pure droplets in the convective regime based on the Ranz-Marshall-type correlation for the Sh number. Comparison was made to single droplet drying experiments of pure water. It was found that the effect of mass transfer coefficient depression is significant under the high mass flux condition from the droplet. An expression was obtained to approximate the total time required for complete evaporation of a pure droplet. This expression can be used as a quick computation tool for more fundamental studies on droplet evaporation under controlled ambient conditions.