Bichao Bao1, Weilang He1, Huan Zhao1, Bin Xu2, Zhongping Lin 1

  • 1 School of Mechanical Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
  • 2 Department of Environmental Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China

Received: April 22, 2014
Revised: September 21, 2014
Accepted: September 23, 2014
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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.


  • 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.

Keywords: Penetration model; Dynamic filtration; Fibrous filter

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