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Full‐size experimental assessment of the aerodynamic sealing of low velocity air curtains

2021-10-11Artigo científico Acesso aberto
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dc.contributor.authorViegas, João Carlos Godinho
dc.contributor.authorCarrasco, Levi
dc.contributor.authorPinto, Luís
dc.contributor.authorMorais, João
dc.contributor.authorAelenei, Daniel
dc.contributor.authorMorais, Paulo
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.institutionUNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
dc.contributor.institutionCTS - Centro de Tecnologia e Sistemas
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2021-11-26T23:44:51Z
dc.date.available2021-11-26T23:44:51Z
dc.date.issued2021-10-11
dc.description
dc.description.abstractVertical air curtains are often used to separate two different zones to reduce contaminant transfer or even to provide aerodynamic sealing from one zone to the other. In this isothermal full-size experimental research work, the contaminant transfer between zones is reduced using an air extraction from the “contaminated” compartment and an air curtain. This work correlates the min-imum exhaust air flow rate required to reach the aerodynamic sealing at the opening connecting two different zones with the jet nozzle velocity for small nozzle thicknesses (5 mm, 10 mm and 16 mm), particularly for Reynolds numbers below 3800. Following the experimental study, a general physical law that relates the jet parameters (angle, nozzle thickness and jet velocity at the nozzle) with the average velocity through the opening (for the condition of acceptable contaminant tight-ness) was obtained. The results showed that the average velocity of the flow across a door protected by an air curtain required to keep the aerodynamic sealing varies linearly with Re. The slope, how-ever, is different below and above Re = 3820.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent7934892
dc.identifier.doi10.3390/fluids6100359
dc.identifier.issn2311-5521
dc.identifier.otherPURE: 34789509
dc.identifier.otherPURE UUID: 4447ba39-2766-4677-85a9-ab1a057fefe9
dc.identifier.otherScopus: 85117450573
dc.identifier.otherWOS: 000713643600001
dc.identifier.otherORCID: /0000-0002-1007-1756/work/151381846
dc.identifier.urihttp://hdl.handle.net/10362/128323
dc.identifier.urlhttps://www.scopus.com/pages/publications/85117450573
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/690968/EU
dc.relationNANOMATERIALS-BASED INNOVATIVE ENGINEERING SOLUTION TO ENSURE SUSTAINABLE SAFEGUARD TO INDOOR AIR
dc.subjectAerodynamic sealing
dc.subjectAir curtain
dc.subjectExperiments
dc.subjectIndoor air quality
dc.subjectCondensed Matter Physics
dc.subjectMechanical Engineering
dc.subjectFluid Flow and Transfer Processes
dc.titleFull‐size experimental assessment of the aerodynamic sealing of low velocity air curtainsen
dc.typejournal article
degois.publication.issue10
degois.publication.titleFLUIDS
degois.publication.volume6
dspace.entity.typePublication
oaire.awardNumber690968
oaire.awardTitleNANOMATERIALS-BASED INNOVATIVE ENGINEERING SOLUTION TO ENSURE SUSTAINABLE SAFEGUARD TO INDOOR AIR
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/690968/EU
oaire.fundingStreamH2020
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccess
relation.isProjectOfPublicationbde26bcd-66b5-41f2-b129-0448f7a2cd57
relation.isProjectOfPublication.latestForDiscoverybde26bcd-66b5-41f2-b129-0448f7a2cd57

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