Cite this article: Bao, B., He, W., Zhao, H., Xu, B. and Lin, Z. (2015). Modeling Penetration through Fibrous Filter during Dynamic Filtration.
Aerosol Air Qual. Res.
15: 648-656. https://doi.org/10.4209/aaqr.2014.04.0081
Model to describe penetration change during clogging for filter is developed.
Filter penetration is a function of coefficient Κ and deposited dust mass.
Model is verified through laboratory filter experiments with dust loading.
The coefficient Κ is obtained using regression analysis.
A model to quantitatively describe penetration change during filter clogging through a fiber filter is proposed. This model is developed using two different analytical methods and indicates that filter penetration is a function of the coefficient K and deposited dust mass in the filter. This is verified through a number of laboratory filter experiments. The coefficient K is obtained using regression analysis via the results of the experiments with different dust loading parameters. K is expressed as a function of aerosol particle diameter, efficiency, and filter material. A larger value of K illustrates a higher increasing rate of efficiency during clogging. A larger value of K also correlates with a smaller aerosol particle size and a higher penetration filter.