Study on the filtration behavior of a metal fiber filter as a function of filter pore size and fiber diameter

Jungmin Seok, Kwang Min Chun, Soonho Song, Seyoung Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The filtration characteristics of a metal fiber filter on dry soot particles have been investigated empirically as a function of the filter pore size and fiber diameter. Six types of metal fiber filters, having various pore sizes and fiber diameters, were examined experimentally, with a focus on the pressure drop, deposited mass, and filtration efficiency. Filtration efficiency was calculated based on the particle number concentration and expressed as a function of the electrical mobility diameter and time. Dry soot particles were generated by a soot generator (mode diameter: 100nm; total number concentration: 3.48×1010/cm3). The deposition temperature, total flow rate, and deposition time were set to 250°C (equivalent to a particle approach velocity of 1.7m/s), 29.2 sLPM, and 1h, respectively.Our results showed that the pressure drop, mass, and particle number concentration-based filtration efficiency exhibited the same tendencies. Specifically, the filter pore size influenced the initial and final filtration efficiencies, while the fiber diameter had a significant effect on the rate of increase of the filtration efficiency.

Original languageEnglish
Pages (from-to)47-61
Number of pages15
JournalJournal of Aerosol Science
Volume81
DOIs
Publication statusPublished - 2015 Mar 1

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Pollution
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Atmospheric Science

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