Did You Just Cough? Visualization of Vapor Diffusion in an Office Using Computational Fluid Dynamics Analysis

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aut.relation.articlenumber9928en_NZ
aut.relation.issue16en_NZ
aut.relation.journalInternational Journal of Environmental Research and Public Healthen_NZ
aut.relation.volume19en_NZ
aut.researcherAl-Jumaily, Ahmed
dc.contributor.authorAl-Rawi, Men_NZ
dc.contributor.authorAl-Jumaily, AMen_NZ
dc.contributor.authorLazonby, Aen_NZ
dc.date.accessioned2022-10-11T23:30:47Z
dc.date.available2022-10-11T23:30:47Z
dc.date.copyright2022en_NZ
dc.date.issued2022en_NZ
dc.description.abstractAwareness of indoor air quality (IAQ) in crowded places such as schools and offices has increased since 2020 due to the COVID-19 pandemic. In addition, countries’ shifting away from containment and towards living with COVID-19 is expected to increase demand for risk mitigation via air-purification devices. In this work, we use Computational Fluid Dynamics (CFD) analysis to investigate the impact of adding an air-purification technology on airflow in an enclosed space. We model a Polyester Filter and UV light (PFUV) dehumidifier in an office with two occupants: one infected with an airborne infectious disease, such as COVID-19; and the other uninfected. We compare three cases where the infected occupant coughs: with no device, and with the device at two different orientations. We construct a CFD model using ANSYS® 2021 Fluent and the Discrete Phase Model (DPM) for the particle treatment. Thermal comfort is assessed using the Testo 400 IAQ and comfort kit. We find that both the device operation and the placement alter the airflow contours, significantly reducing the potential for the uninfected occupant to inhale the vapour expelled by the infected occupant, potentially impacting the likelihood of disease transmission. The device improved thermal comfort measured by Predicted Mean Vote (PMV), Predicted Percentage Dissatisfied (PPD).en_NZ
dc.identifier.citationInternational Journal of Environmental Research and Public Health, 19(16), 9928. https://doi.org/10.3390/ijerph19169928
dc.identifier.doi10.3390/ijerph19169928en_NZ
dc.identifier.issn1660-4601en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/15513
dc.languageenen_NZ
dc.publisherMDPI AGen_NZ
dc.relation.urihttps://www.mdpi.com/1660-4601/19/16/9928
dc.rights© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectInfectious respiratory diseases; Ultraviolet germicidal irradiation (UVGI); Dehumidifier; CFD modelling; Discrete Phase Model (DPM)
dc.titleDid You Just Cough? Visualization of Vapor Diffusion in an Office Using Computational Fluid Dynamics Analysisen_NZ
dc.typeJournal Article
pubs.elements-id463612
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Faculty of Design & Creative Technologies
pubs.organisational-data/AUT/Faculty of Design & Creative Technologies/School of Engineering, Computer & Mathematical Sciences
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies/PBRF ECMS
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