Shigefumi Fujita

Mass transfer for a wide range of driving force Evaporation of pure liquids

Abstract Measurements were made for the rate of evaporation of pure liquids into air and carbon-dioxide for a wide range of driving force ( B = 0·03–36·1) by a specially designed agitated vessel. Taking into account the effect of variable properties on the rate of mass transfer, a new general form for the correlation of high mass transfer data was proposed and data were well correlated by that correlation. Agreement between the data and the predicted value by laminar boundary layer theory was excellent. Validities of the assumption of negligible effect of variable properties on the rate of mass transfer in high mass transfer and of the use of p BM / P as correlating variable were also discussed.