In this work we investigate the effect of relative humidity and ambient temperature on the self-generated hydrothermal waves at the liquid-vapor interface of evaporating ethanol drops by means of infrared thermography and CCD camera. Absorption and/or condensation of water vapor onto the drop was found to have a strong impact on the thermal patterns retrieved at the drop interface. Furthermore, we make use of gas chromatography to quantify for the first time water absorbed and/or condensed onto the drop. To conclude, we highlight the importance to account for the heat of water absorption/condensation in order to characterize the complete heat and mass transfer problem during organic solvent drop evaporation.
|Translated title of the contribution||Influence of relative humidity and ambient temperature on hydrothermal waves (HTWs) of organic solvent volatile drops|
|Publication status||Published - Oct 22 2016|
|Event||熱工学コンファレンス2016 - Matsuyama, Japan|
Duration: Oct 22 2016 → Oct 23 2016
|Period||10/22/16 → 10/23/16|