Modelling evaporation of mono and binary component alkane droplets in different convective flow conditions.

Evaporation of hydrocarbon liquid droplets in a hot convective flow is relevant in many practical applications such as combustion; feed vaporization in multiphase reactors etc. In this study, a lumped parameter evaporation model is presented duly validated with published experimental data to predict evaporation behaviour of the widely used fuels such as gasoline, kerosene and diesel or gas-oil. The effects of temperature dependent physical properties of both liquid and gas phases are taken into account. Comparison of the evaporation features of the two-component and the equivalent single component liquid fuel droplets at different temperature and flow rate of the carrier gas stream specified that, the use of equivalent single component model cannot describe the behaviour bi-component droplet evaporation during the whole process even though the difference in total evaporation time is negligible.