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The acoustic agglomeration rate of aerosol particles depends on the type of interaction between particles of the same or different sizes in the wave. In this investigation, the influence of a sound wave (21 kHz) on droplets, produced by evaporation and condensation of an oil, was monitored by measurements of the size distribution, which were made using an aerodynamic particle sizer (APS), at 5 s intervals over a period of 500 s. It was found that the agglomeration rate of inertialess droplets depends heavily on the concentration of inertial droplets and that the interaction between small and large particles is hydrodynamic.

Additional information

Authors: CAPERAN P, JRC Karlsruhe (DE);SOMERS J, JRC Karlsruhe (DE);RICHTER K, JRC Karlsruhe (DE)
Bibliographic Reference: Paper presented: European Aerosol Conference, Delft (NL), September 9-12, 1996
Availability: Available from (1) as Paper EN 39897 ORA
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