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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received November 2, 2020
Accepted February 26, 2021

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Multi-layered nonwoven filter media for capture of nanoparticles in HVAC systems

Naim Hasolli Young-Ok Park Kwang-Deuk Kim^†

Korea Institute of Energy Research, Daejeon 34129, Korea

kdkim@kier.re.kr

Korean Journal of Chemical Engineering, May 2021, 38(5), 982-988(7), 10.1007/s11814-021-0773-9

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Abstract

Two samples of multi-layered depth filter media and single layers were prepared for this study. Filtration performance of these samples was evaluated using lab scale test unit with KCl as test aerosol. Filter media samples were composed of three layers, two of them of meltblown fiber layers and one of thermal-bonded microfiber layer. A commercial filter media was used as reference sample to compare the filtration performance. Quality factors were calculated in addition to evaluate the overall filtration performance of the new composite filter media. The results indicate a satisfactory filtration efficiency of the media M2U, over 90% for the studied particle size range. Compared to reference media, new media M2U shows better performance, especially for the particle size greater than 50 nm. Charged (M2U) and uncharged (M2U-2) composite media were tested and results compared with theory calculations. Due to upstream layer of high packing density, the loading tests reveal a tendency of clogging for media M2U. Both media, M1U and M2U, exhibit better filtration performance compared to the reference media RefM and could be applied for collection of nanoparticles in HVAC system by replacing the high grade efficiency filters.

Keywords

Nanoparticle Composite Filter Media Clogging Pressure Drop Fractional Efficiency

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