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On the Performance of Car Interior Air Filters
Technical Paper
2001-24-0071
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this study, the performances of two filter media, (Cellulose single layer and dual layered wool non wool/cellulose with electrically charged fibre) for automotive cabin air cleaning application, are investigated.
Pressure drops of “clean” and dust loaded filter, fractional efficiencies and behaviour of dust loading were measured. The measurements were carried out in a panel filter housing like that specified by the Society of Automotive Engineers SAE J726 Air Cleaner Test Code. Dual-layered filter, as expected, has filtration efficiency and pressure drops very higher than single layer filter.
The flow fields inside the test housing were, also, measured using a Pitot tube. The filter in the housing is exposed to non uniform velocity with very high velocities in the center and lower velocities toward the edge. These velocity variations may be expected to affect the performance of the filter, in terms of efficiency, pressure drops and dust holding capacity. Simple filter efficiency model based on single fibre inertial interception was applied in order to show the influence of non uniform velocities on the filter efficiency.
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Citation
De Vita, A. and Di Angelo, L., "On the Performance of Car Interior Air Filters," SAE Technical Paper 2001-24-0071, 2001, https://doi.org/10.4271/2001-24-0071.Also In
References
- Society of Automotive Engineers “SAE J726 Air Cleaner Test Code - SAE Recommended Practice” SAE, Inc. Warrendale 1987
- Brown R.C. “Air Filtration” Pergamon Oxford 1993
- Sabnis R. D. “Effects of non-uniform air flow through filters on filtration efficiencies” Oklahoma State University, School of Mechanical and Aerospace Engineering Stillwater, Oklahoma 1993
- Di Blasio, T. Marine, S. “On the fractional efficiency of automotive interior air filter” 1997
- Davies, C. N. “Air filtration” Academic Press Inc. New York 1973
- Flagan, R. C. Seinfeld, J. H. “Fundamentals of air pollution engineering” Prentice Hall New Jersey 1988
- Lee, K. W. Liu, B. Y. H. “Theoretical study of aerosol filtration by fibrous filters” Aerosol Science and Technology 1 147 161 1982
- Sabnis, R. D. Cai, Q. Chambers, F. W. “ Flow Distribution Effects Upon Air Filter Performance Measurements ” SAE 940317
- Galliè C. “Studio teorico sperimentale delle prestazioni di filtri per l’aria dell’abitacolo di autovetture” University of L’Aquila, Shool of Mechanical Engineering 2000