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Approximation of most penetrating particle size for fibrous filters considering Cunningham slip correction factor

Title
Approximation of most penetrating particle size for fibrous filters considering Cunningham slip correction factor
Authors
Jung, Chang HoonYoon, Young JunUm, JunshikLee, Seoung SooLee, Ji YiChiao, SenKim, Yong Pyo
Ewha Authors
김용표이지이
SCOPUS Author ID
김용표scopus; 이지이scopus
Issue Date
2020
Journal Title
ENVIRONMENTAL ENGINEERING RESEARCH
ISSN
1226-1025JCR Link

2005-968XJCR Link
Citation
ENVIRONMENTAL ENGINEERING RESEARCH vol. 25, no. 3, pp. 439 - 445
Keywords
Aerosol single fiber efficiencyCunningham slip correction factorFibrous collectorMinimum single fiber efficiencyMost penetrating particle size
Publisher
KOREAN SOC ENVIRONMENTAL ENGINEERS
Indexed
SCIE; SCOPUS; KCI WOS scopus
Document Type
Article
Abstract
In the estimation of the aerosol single fiber efficiency using fibrous filters, there is a size range, where the particles penetrate most effectively through the fibrous collectors, and corresponding minimum single fiber efficiency. For small particles in which the diffusion mechanism is dominant, the Cunningham slip correction factor (C-c) affects the single fiber efficiency and the most penetrating particle size (MPPS). Therefore, for accurate estimation, C-c is essential to be considered. However, many previous studies have neglected this factor because of its complexity and the associated difficulty in deriving the appropriate parameterization particularly for the MPPS. In this study, the expression for the MPPS, and the corresponding expression for the minimum single fiber efficiency are analytically derived, and the effects of C-c are determined. In order to accommodate the slip factor for all particle-size ranges, C-c is simplified and modified. Overall, the obtained analytical expression for the MPPS is in a good agreement with the exact solution.
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DOI
10.4491/eer.2019.058
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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