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Inverse Problem of Air Filtration of Nanoparticles: Optimal Quality Factors of Fibrous Filters
Joint Authors
Zhang, Zhong
Shou, Dahua
Fan, Jintu
Ye, Lin
Zhang, Heng
Qian, Xiaoming
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-11-05
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Application of nanofibers has become an emerging approach to enhance filtration efficiency, but questions arise about the decrease in Quality factor (QF) for certain particles due to the rapidly increasing pressure drop.
In this paper, we theoretically investigate the QF of dual-layer filters for filtration of monodisperse and polydisperse nanoparticles.
The inverse problem of air filtration, as defined in this work, consists in determining the optimal construction of the two-layer fibrous filter with the maximum QF.
In comparison to a single-layer substrate, improved QF values for dual-layer filters are found when a second layer with proper structural parameters is added.
The influences of solidity, fiber diameter, filter thickness, face velocity, and particle size on the optimization of QF are studied.
The maximum QF values for realistic polydisperse particles with a lognormal size distribution are also found.
Furthermore, we propose a modified QF (MQF) accounting for the effects of energy cost and flow velocity, which are significant in certain operations.
The optimal MQF of the dual-layer filter is found to be over twice that of the first layer.
This work provides a quick tool for designing and optimizing fibrous structures with better performance for the air filtration of specific nanoparticles.
American Psychological Association (APA)
Shou, Dahua& Fan, Jintu& Ye, Lin& Zhang, Heng& Qian, Xiaoming& Zhang, Zhong. 2015. Inverse Problem of Air Filtration of Nanoparticles: Optimal Quality Factors of Fibrous Filters. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1068787
Modern Language Association (MLA)
Shou, Dahua…[et al.]. Inverse Problem of Air Filtration of Nanoparticles: Optimal Quality Factors of Fibrous Filters. Journal of Nanomaterials No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1068787
American Medical Association (AMA)
Shou, Dahua& Fan, Jintu& Ye, Lin& Zhang, Heng& Qian, Xiaoming& Zhang, Zhong. Inverse Problem of Air Filtration of Nanoparticles: Optimal Quality Factors of Fibrous Filters. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1068787
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1068787