TY - JOUR
T1 - Dependence of the fiber diameter on quality factor of filters fabricated with meta-aramid nanofibers
AU - Kim, Han Bin
AU - Lee, Woo Jin
AU - Choi, Seuk Cheun
AU - Lee, Ki Bong
AU - Lee, Myong Hwa
N1 - Funding Information:
This work was supported financially by the Eco-innovation Project (Project number: 2017-00011-0003 ) through the Ministry of Environment, Republic of Korea.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - Bag filters are generally used to remove particulate matter from the dust-laden flue gas exhausted from combustors. Recently, great effort has been expended to improve the performance of bag filters by coating the filter surface with nanofibers. In this study, meta-aramid nanofibers with high thermal durability were produced by an electrospinning process, and the effect of fiber diameter on the filter quality factor was theoretically and experimentally investigated. Electrospun filters with mean fiber sizes of 333 nm and 569 nm were successfully prepared by controlling the electrospinning parameters. The filters had high mechanical and chemical durability, as per the results of thermogravimetric analyzer (TGA), X-ray diffraction (XRD), Fourier-transform infrared (FT-IR), and a tensile strength analyses. In addition, the particle collection efficiency and pressure drop of the filters increased as the fiber diameter decreased. The filter quality factor, determined by the relationship between the collection efficiency and the pressure drop, increased slightly with the decrease in fiber diameter, although the experimental results were slightly different from the theoretical results.
AB - Bag filters are generally used to remove particulate matter from the dust-laden flue gas exhausted from combustors. Recently, great effort has been expended to improve the performance of bag filters by coating the filter surface with nanofibers. In this study, meta-aramid nanofibers with high thermal durability were produced by an electrospinning process, and the effect of fiber diameter on the filter quality factor was theoretically and experimentally investigated. Electrospun filters with mean fiber sizes of 333 nm and 569 nm were successfully prepared by controlling the electrospinning parameters. The filters had high mechanical and chemical durability, as per the results of thermogravimetric analyzer (TGA), X-ray diffraction (XRD), Fourier-transform infrared (FT-IR), and a tensile strength analyses. In addition, the particle collection efficiency and pressure drop of the filters increased as the fiber diameter decreased. The filter quality factor, determined by the relationship between the collection efficiency and the pressure drop, increased slightly with the decrease in fiber diameter, although the experimental results were slightly different from the theoretical results.
KW - Air filtration
KW - Bag filter
KW - Electrospinning
KW - Polyamide nanofiber
KW - Thermal stability
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U2 - 10.1016/j.seppur.2019.04.045
DO - 10.1016/j.seppur.2019.04.045
M3 - Article
AN - SCOPUS:85064454370
VL - 222
SP - 332
EP - 341
JO - Separation and Purification Technology
JF - Separation and Purification Technology
SN - 1383-5866
ER -