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An Experimental Investigation of Acoustic Precipitation of Aerosols At Moderate Sound Intensity.

Authors
Schopf-PS
Source
NTIS: PB/222-755 Available for Reference At Bureau Libraries :33 pages
Link
NIOSHTIC No.
10000151
Abstract
Results of an experimental investigation into the possible use medium energy acoustic fields (130 to 140 db) to precipate 1- to 10- micrometer particles are presented. The aerosol was produced with a commercial generator using oleic acid and nitrogen. The sound field was a sinusoidal standing wave field in an acrylic tube, with light transmission data used for concentration determination. The results showed collection efficiencies of up to 80 percent on 2-micrometer particles with a residence time of 11.8 Seconds at a sound pressure level of 139 db re 2 x 10-5 n/m2. A discussion of the possible turbulent mechanism is made, as well as review and comparison with others' work.
Publication Date
19720101
Document Type
CP; Final Contract Report;
Fiscal Year
1972
NTIS Accession No.
PB-222755
NTIS Price
A04
Identifying No.
OFR 48-73
NIOSH Division
PRC;
Source Name
NTIS: PB/222-755; Available for Reference At Bureau Libraries
Performing Organization
Brown University
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