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Based on the orthokinetic model of acoustic agglomeration of aerosols, an analysis of the agglomeration kernel is presented which includes the effects of fluid forces. It is shown that inclusion of particle collision efficiencies in the geometric kernel results in an agglomeration which is extremely sensitive to the particle diameters. Results are presented on the agglomeration of particles in the range 0.1-10 microns, using acoustic fields with an amplitude of 150 dB at frequencies from 20 kHz (ultrasound) to 20 Hz (infrasound). From these results, the optimum frequency can be obtained which can be used to agglomerate a given aerosol, with and without the use of scavenging centres to scrub the aerosol.

Additional information

Authors: MAGILL J, JRC Karlsruhe (DE)
Bibliographic Reference: Paper presented: 13th ISNA International Symposium on Nonlinear Acoustics, Bergen (NO), June 28 - July 7, 1993
Availability: Available from (1) as Paper EN 37237 ORA
Record Number: 199311472 / Last updated on: 1994-11-28
Original language: en
Available languages: en