Numerical Comparison of Prediction Models for Aerosol Filtration Efficiency Applied on a Hollow-Fiber Membrane Pore Structure

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dc.contributor.authorBulejko, Pavelcs
dc.coverage.issue6cs
dc.coverage.volume8cs
dc.date.issued2018-06-19cs
dc.description.abstractHollow-fiber membranes (HFMs) have widely been applied to many liquid treatment applications such as wastewater treatment, membrane contactors/bioreactors, membrane distillation etc. Despite the fact that HFMs are widely used for gas separation from gas mixtures, their use for mechanical filtration of aerosols is very scarce. In this work, we compared mathematical models developed for prediction of air filtration efficiency applying them on the structural parameters of polypropylene HFMs. These membranes are characteristic of pore diameters of about 90 nm and high solidity, thus high potential for nanoparticle removal from air. Single fiber/collector and capillary pore approach were chosen to compare between models developed for fibrous filters and capillary-pore membranes (Nuclepore filters) based on three main mechanisms occurring in aerosol filtration (inertial impaction, interception and diffusion). The collection efficiency due to individual mechanisms differs significantly. The differences are caused by the parameters for which the individual models were developed, i.e. given values of governing dimensionless numbers (Reynolds, Stokes and Peclet number) and also given values of filter porosity and filter fiber diameter. Some models can be used to predict the efficiency of HFMs based on assumptions depending on the conditions and exact membrane parameters.en
dc.formattextcs
dc.format.extent1-24cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationNanomaterials. 2018, vol. 8, issue 6, p. 1-24.en
dc.identifier.doi10.3390/nano8060447cs
dc.identifier.issn2079-4991cs
dc.identifier.orcid0000-0001-9429-2304cs
dc.identifier.other148344cs
dc.identifier.researcheridG-4572-2018cs
dc.identifier.scopus57190390739cs
dc.identifier.urihttp://hdl.handle.net/11012/83850
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofNanomaterialscs
dc.relation.urihttp://www.mdpi.com/2079-4991/8/6/447cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2079-4991/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectHollow-fiber membraneen
dc.subjectaerosolen
dc.subjectfiltration efficiencyen
dc.subjectinterceptionen
dc.subjectinertial impactionen
dc.subjectdiffusionen
dc.titleNumerical Comparison of Prediction Models for Aerosol Filtration Efficiency Applied on a Hollow-Fiber Membrane Pore Structureen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-148344en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:47:29en
sync.item.modts2025.01.17 16:42:08en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Laboratoř přenosu tepla a prouděnícs
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