Ta-Chih Hsiao 1, Da-Ren Chen2

Graduate Institute of Environmental Engineering, National Taiwan University, Taipei 10617, Taiwan
Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA

Received: January 1, 2019
Revised: April 29, 2019
Accepted: June 1, 2019
Download Citation: ||https://doi.org/10.4209/aaqr.2019.01.0002  

  • Download: PDF

Cite this article:

Hsiao, T.C. and Chen, D.R. (2019). Modeling of the Transitional Pressure Drop of Fibrous Filter Media Loaded with Oil-coated Particles. Aerosol Air Qual. Res. 19: 1625-1635. https://doi.org/10.4209/aaqr.2019.01.0002


  • Pressure drop of fibrous filter media loaded with oil-coated particles was studied.
  • A semi-empirical model was proposed to describe the filter pressure drop curve.
  • The measured data set for glass-fiber and cellulose media was used in the modeling.
  • The model is limited to the cases with coating oils of low surface tension.


The pressure drop of glass-fiber and cellulose filter media loaded with oil-coated particles was investigated. The focus of this study was to develop a model describing the pressure drop of fibrous filter media under the above particle loading condition. A set of experimental data collected during previous work was used for this modelling. For the cases where the coated particles possessed an oil volumetric percentage below 50%, the filter was divided into two layers: One layer collected all test particles while the other layer remained clean, and the pressure drop of the first layer was estimated using a modified Bergman model, whereas that of the second was calculated with the Davies equation. The total filter pressure drop is the summation of the layers’ pressure drops. For the cases where the coated particles possessed an oil volumetric percentage above 50%, a power-law equation with two parameters (viz., the exponent, n, and the critical volume, Vcr) was applied to fit the experimental data. The correlations of the above parameters with the solid-core diameter fraction (X) of the particles and the viscosity of the coating oil were calculated for the glass-fiber and cellulose filter media.

Keywords: Fibrous filter; Aerosol filtration; Loading behavior; Oil-coated particle.


Don't forget to share this article 


Subscribe to our Newsletter 

Aerosol and Air Quality Research has published over 2,000 peer-reviewed articles. Enter your email address to receive latest updates and research articles to your inbox every second week.

Latest coronavirus research from Aerosol and Air Quality Research

2018 Impact Factor: 2.735

5-Year Impact Factor: 2.827

SCImago Journal & Country Rank