Relationship between the size of mist droplets and ethanol condensation efficiency at ultrasonic atomization on ethanol–water mixtures

Abstract

Abstract High‐frequency (2.4 MHz) ultrasonic irradiation to an ethanol–water mixture can induce the generation of ethanol‐rich mist droplets at lower temperatures. Two groups of droplets in micrometer‐ and nanometer‐sized were observed in the mist generated by the ultrasonic atomization. Nanosized droplets were considered to be ethanol‐rich droplets which cause ethanol condensation. © 2009 American Institute of Chemical Engineers AIChE J, 2010