Ultrasonic Atomization

  • Susumu NiiEmail author
Reference work entry


Ultrasound enhances dispersion of liquids into fine mist with a narrow size distribution. Such small liquid droplets and distributions are difficult to obtain with using conventional nozzles. Atomization occurs in the wide frequency range from 20 kHz to 10 MHz. Highlighted in this chapter is the phenomena occurring in MHz-range ultrasound because of the small mist size of submicrometer to several micrometers and enabling solute partitioning between mist and bulk liquid. The finding of surfactant enrichment in the mist brought a new aspect of separation in ultrasonic atomization. Targets of the separation range from ethanol, solid particles, and carbon nanotubes to rice wines. The chapter covers the basic mechanism of mist formation, solute-partitioning behavior, and recent topic of solid transfer into gas phase.


Atomization, ultrasonic Application, mist Droplet formation Droplet formation Ethanol separation Solute partitioning Distillation, ultrasonically assisted Droplet formation Capillary wave hypotheses Cavitation theory Conjunction theory Mist application For preparing nanoparticles For transferring solids to gas phase Nanodroplets formation Solute partitioning Alcohol enrichment Carrier gas Droplet model Enrichment ratio Ethanol enrichment Fuel atomization Mass balance Surfactant transport Ultrasonic spray pyrolysis (USP) 


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Copyright information

© Springer Science+Business Media Singapore 2016

Authors and Affiliations

  1. 1.Kagoshima UniversityKagoshimaJapan

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