Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception

Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception

The results of this analysis suggest that a filter geometry which will allow smoke to pass at a Iower than normal velocity is desirable to improve filter efficiency. This improved efficiency is due to the major contribution of the diffusion mechanism and the insignificant contribution of the impacti...

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Main Author: Overton J. Ray
Format: Article
Language:English
Published: Sciendo 1973-11-01
Series:Beiträge zur Tabakforschung International
Online Access:https://doi.org/10.2478/cttr-2013-0319
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spelling doaj-923a5262d063422aa42515f06abecf332021-09-06T19:22:10ZengSciendoBeiträge zur Tabakforschung International1612-92371973-11-017311712010.2478/cttr-2013-0319Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct InterceptionOverton J. Ray0Research Laboratories, Tennessee Eastrnan Company, Division of Eastman Kodak Company, Kingsport, Tennessee, USAThe results of this analysis suggest that a filter geometry which will allow smoke to pass at a Iower than normal velocity is desirable to improve filter efficiency. This improved efficiency is due to the major contribution of the diffusion mechanism and the insignificant contribution of the impaction mechanism to the filtration process. Lower than normal velocities wilI also reduce the pressure drop. If a filter can be designed to operate at a lower velocity, and therefore at a lower pressure drop, it is desirable to have the acetate filaments oriented perpendicularly to the flow direction of the smoke. This geometry gives higher removal per unit weight of acetate than the geometry of a conventional filter.https://doi.org/10.2478/cttr-2013-0319
collection DOAJ
language English
format Article
sources DOAJ
author Overton J. Ray
spellingShingle Overton J. Ray
Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception
Beiträge zur Tabakforschung International
author_facet Overton J. Ray
author_sort Overton J. Ray
title Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception
title_short Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception
title_full Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception
title_fullStr Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception
title_full_unstemmed Filtration of Cigarette Smoke: Relative Contributions of Inertial Impaction, Diffusional Deposition, and Direct Interception
title_sort filtration of cigarette smoke: relative contributions of inertial impaction, diffusional deposition, and direct interception
publisher Sciendo
series Beiträge zur Tabakforschung International
issn 1612-9237
publishDate 1973-11-01
description The results of this analysis suggest that a filter geometry which will allow smoke to pass at a Iower than normal velocity is desirable to improve filter efficiency. This improved efficiency is due to the major contribution of the diffusion mechanism and the insignificant contribution of the impaction mechanism to the filtration process. Lower than normal velocities wilI also reduce the pressure drop. If a filter can be designed to operate at a lower velocity, and therefore at a lower pressure drop, it is desirable to have the acetate filaments oriented perpendicularly to the flow direction of the smoke. This geometry gives higher removal per unit weight of acetate than the geometry of a conventional filter.
url https://doi.org/10.2478/cttr-2013-0319
work_keys_str_mv AT overtonjray filtrationofcigarettesmokerelativecontributionsofinertialimpactiondiffusionaldepositionanddirectinterception
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