THE AEROSOL EFFICIENCY AND PRESSURE DROP OF A FIBROUS FILTER AT REDUCED PRESSURES
The collection efficiency of an Institute of Paper Chemistry fibrous filter for monodispersed aerosols of 0.026 to 1.71 - diameter and the resistance to flow through the filter were investigated experimentally at reduced pressures which simulate air densities in the stratosphere. Single fiber efficiencies in the diffusion and impaction regimes were calculated and compared with theory. Resistance to flow through the mat was analyzed in terms of a drag coefficient of a single fiber imbedded in a mat or flow through a bed composed of capillary tubes. The experimental results show the dominant effects of slip flow in increasing collection efficiency and reducing pressure drop through the filter at reduced pressures. (auth)
- Research Organization:
- General Mills, Inc., Minneapolis, Minn.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-008934
- OSTI ID:
- 4101816
- Journal Information:
- Journal of Colloid Science (U.S.) Changed to J. Colloid Interface Sci., Journal Name: Journal of Colloid Science (U.S.) Changed to J. Colloid Interface Sci. Vol. Vol: 15; ISSN JCSCA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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