Nanofibers in capturing submicron particles

Woon Fong Leung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Nanofibers 100-300 nm obtained from electrospinning are known to improve capture efficiency of submicron particles. In this paper, the capture mechanical mechanisms by diffusion, interception, and inertia are examined for submicron aerosol particle capture with nanofibers. Also methods will be compared between conventional fiber with addition of nanofibers and filters with just nanofibers (without larger fibers). In particular, filter efficiency (or penetration), pressure drop, most penetrating particles, and also quality factor (quotient of minus logarithm of penetration to pressure drop) are used to characterize the performance between these two types of filters with nanofibers and this is compared with conventional filter with larger microfibers (1 micron - 20 microns). Parameters examined include fiber concentration or density (for a wide range of concentration), fiber diameter, challenging particle size, and air velocity. The most appropriate mechanical capture efficiency correlation selected is used to compare with previous reported test results in the literature with very good agreement. Finally, some interesting optimization results are obtained using this correlation in terms of filter efficiency, fiber concentration and pressure drop.
Original languageEnglish
Title of host publicationAIChE Annual Meeting, Conference Proceedings
Pages2352
Number of pages1
Publication statusPublished - 1 Dec 2005
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: 30 Oct 20054 Nov 2005

Conference

Conference05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
Country/TerritoryUnited States
CityCincinnati, OH
Period30/10/054/11/05

ASJC Scopus subject areas

  • Engineering(all)

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