Effects of Particle Equilibrium Charge and Face Velocity on the Particle Filtration Efficiency of Non-Woven Filter and Woven Fabric Filter

Authors

  • Visut Asanavijit Research Unit of Applied Electric Field in Engineering, College of Integrated Science and Technology, Rajamangala University of Technology Lanna.
  • Panich Intra Research Unit of Applied Electric Field in Engineering, College of Integrated Science and Technology, Rajamangala University of Technology Lanna.

Keywords:

aerosol Particle, electrostatic charge, filtration efficiency, face velocity, woven fabric

Abstract

The aim of this paper is to determine the effects of particle equilibrium charge and face velocity on the particle filtration efficiency of non-woven filter and woven fabric. In this study, N95 respirator filter media and microfiber fabric were tested against sodium chloride (NaCl) and polystyrene Latex (PSL) particles in diameter of 0.3 µm. A neutralizer and an electrostatic size classifier were used to classify the size of aerosol particles and a particle counter was used for measuring the particle number concentration at the upstream and downstream of the sample materials. Experimental results showed that filtration efficiency of NaCl and PSL particles of woven fabric and non-woven filter decreased due to particle equilibrium charge state in the ranges from 0.57 to 7.84%. It can be seen that increasing the face velocity resulted in the increase of the particle filtration efficiency of woven fabric. For non-woven fabric, particle filtration efficiency decreased as face velocity rose.

Author Biographies

Visut Asanavijit, Research Unit of Applied Electric Field in Engineering, College of Integrated Science and Technology, Rajamangala University of Technology Lanna.

Research Unit of Applied Electric Field in Engineering, College of Integrated Science and Technology, Rajamangala University of Technology Lanna, Chiang Mai 50220, Thailand.

Panich Intra, Research Unit of Applied Electric Field in Engineering, College of Integrated Science and Technology, Rajamangala University of Technology Lanna.

Research Unit of Applied Electric Field in Engineering, College of Integrated Science and Technology, Rajamangala University of Technology Lanna, Chiang Mai 50220, Thailand.

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Published

2023-04-29

How to Cite

Asanavijit, V., & Intra, P. (2023). Effects of Particle Equilibrium Charge and Face Velocity on the Particle Filtration Efficiency of Non-Woven Filter and Woven Fabric Filter. Recent Science and Technology, 15(1), 133–151. Retrieved from https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/251047

Issue

Vol. 15 No. 1 (2023): January - April 2023

Section

Research Article

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