Analysis of filtration properties of fibrous filter materials using computer simulation of their loading with dust

K. Majchrzycka , Tomasz Ciach , Leon Gradoń

Abstract

In the paper is presented a description of the changes in the essential gas-filtration parameters of the fibrous filter materials used for respiratory protection. For that purpose, a numerical model was developed to simulate the nonsteady-state filtration specific for the two mechanisms of deposition: direct interception and diffusion. Analysis of the local changes in porosity of the filter layers and flow rate of the aerosol permitted to determine the character of the essential parameters of filtration for any type of filter media and dust hazard conditions. The performance of the model was tested on a special station for simulation of the performance of respiratory protective equipment. It is shown that the model permits a comparative evaluation of the filtration properties of multilayer filter media used for respiratory protection, thus facilitating the design and selection of respiratory protective filters for various working environments.
Author K. Majchrzycka
K. Majchrzycka,,
-
, Tomasz Ciach (FCPE / DBBE)
Tomasz Ciach,,
- Department of Biotechnology and Bioprocess Engineering
, Leon Gradoń (FCPE / CIPE)
Leon Gradoń,,
- Chair of Integrated Process Engineering
Journal seriesZeszyty Naukowe. Włókiennictwo, ISSN 0076-0331
Issue year2000
Vol59
Pages25-31
Publication size in sheets0.5
Conference2nd International Conference: Metrology in Textile Engineering (MTE 2000), 23-11-2000 - 24-11-2000, Łódź, Polska
Keywords in Englishair filtration, dust loading
Languageen angielski
Score (nominal)0
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