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

doi:10.1016/j.jaerosci.2014.11.008

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

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	47-61
Number of pages	15
Journal	Journal of Aerosol Science
Volume	81
DOIs	https://doi.org/10.1016/j.jaerosci.2014.11.008
Publication status	Published - 2015 Mar 1

Bibliographical note

Funding Information:
This study received financial support from the FiberTech Corporation , which is gratefully acknowledged by the authors.

All Science Journal Classification (ASJC) codes

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

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

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.",

author = "Jungmin Seok and Chun, {Kwang Min} and Soonho Song and Seyoung Lee",

note = "Funding Information: This study received financial support from the FiberTech Corporation , which is gratefully acknowledged by the authors. ",

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doi = "10.1016/j.jaerosci.2014.11.008",

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AU - Seok, Jungmin

AU - Chun, Kwang Min

AU - Song, Soonho

AU - Lee, Seyoung

N1 - Funding Information: This study received financial support from the FiberTech Corporation , which is gratefully acknowledged by the authors.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - 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.

AB - 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.

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