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Volume 15, No. 2, April 2015, Pages 648-656 PDF(523 KB)  
doi: 10.4209/aaqr.2014.04.0081   

Modeling Penetration through Fibrous Filter during Dynamic Filtration

Bichao Bao1, Weilang He1, Huan Zhao1, Bin Xu2, Zhongping Lin1

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

 

Highlights
  • 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.

Abstract

 

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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