NDLI: Acoustic agglomeration methods and apparatus

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Acoustic agglomeration methods and apparatus

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1984
Description	Methods are described for using acoustic energy to agglomerate fine particles on the order of one micron diameter that are suspended in gas, to provide agglomerates large enough for efficient removal by other techniques. The gas with suspended particles, is passed through the length of a chamber while acoustic energy at a resonant chamber mode is applied to set up one or more acoustic standing wave patterns that vibrate the suspended particles to bring them together so they agglomerate. Several widely different frequencies can be applied to efficiently vibrate particles of widely differing sizes. The standing wave pattern can be applied along directions transversed to the flow of the gas. The particles can be made to move in circles by applying acoustic energy in perpendicular directions with the energy in both directions being of the same wavelength but 90 deg out of phase.
File Size	548595
Page Count	6
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19850013794
Archival Resource Key	ark:/13960/t7kq2v423
Language	English
Publisher Date	1984-10-09
Access Restriction	Open
Subject Keyword	Acoustics Sound Waves Microgravity Applications Filtration Lumping Resonant Vibration Agglomeration Acoustic Excitation Granular Materials Space Commercialization Dust Collectors Clumps Sound Generators Precipitators Resonators Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Patent

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