An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in Classrooms
Abstract To predict the aerosol number concentration decay in modern classrooms, this study derived an analytical model that addresses various indoor factors, viz., the filtration efficiency of air ventilation systems, effects of indoor air cleaners, particle deposition on walls, and particle emissi...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2021-05-01
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| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.210038 |
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| _version_ | 1823862872866816000 |
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| author | Qingfeng Cao Thomas H. Kuehn Seong Chan Kim Qisheng Ou Chenxing Pei David Y.H. Pui |
| author_facet | Qingfeng Cao Thomas H. Kuehn Seong Chan Kim Qisheng Ou Chenxing Pei David Y.H. Pui |
| author_sort | Qingfeng Cao |
| collection | DOAJ |
| description | Abstract To predict the aerosol number concentration decay in modern classrooms, this study derived an analytical model that addresses various indoor factors, viz., the filtration efficiency of air ventilation systems, effects of indoor air cleaners, particle deposition on walls, and particle emission from occupants. We also conducted experimental measurements to determine the wall-loss coefficient and the occupants’ particle generation rate, and the modeling results agreed with the experimental data reasonably well. Additionally, we investigated the behavior of the particle concentration decay in different ventilation scenarios. The model has been incorporated into web-based software that is freely available to the public. |
| format | Article |
| id | doaj-art-1f80ca0a47524a9d9aeed3f1fcb57512 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-05-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-1f80ca0a47524a9d9aeed3f1fcb575122025-02-09T12:21:22ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-05-0121911210.4209/aaqr.210038An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in ClassroomsQingfeng Cao0Thomas H. Kuehn1Seong Chan Kim2Qisheng Ou3Chenxing Pei4David Y.H. Pui5Department of Mechanical Engineering, University of MinnesotaDepartment of Mechanical Engineering, University of MinnesotaDepartment of Mechanical Engineering, University of MinnesotaDepartment of Mechanical Engineering, University of MinnesotaDepartment of Mechanical Engineering, University of MinnesotaDepartment of Mechanical Engineering, University of MinnesotaAbstract To predict the aerosol number concentration decay in modern classrooms, this study derived an analytical model that addresses various indoor factors, viz., the filtration efficiency of air ventilation systems, effects of indoor air cleaners, particle deposition on walls, and particle emission from occupants. We also conducted experimental measurements to determine the wall-loss coefficient and the occupants’ particle generation rate, and the modeling results agreed with the experimental data reasonably well. Additionally, we investigated the behavior of the particle concentration decay in different ventilation scenarios. The model has been incorporated into web-based software that is freely available to the public.https://doi.org/10.4209/aaqr.210038Analytical modelAerosol concentrationClassroomsVentilation systemIndoor air qualityCOVID-19 |
| spellingShingle | Qingfeng Cao Thomas H. Kuehn Seong Chan Kim Qisheng Ou Chenxing Pei David Y.H. Pui An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in Classrooms Aerosol and Air Quality Research Analytical model Aerosol concentration Classrooms Ventilation system Indoor air quality COVID-19 |
| title | An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in Classrooms |
| title_full | An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in Classrooms |
| title_fullStr | An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in Classrooms |
| title_full_unstemmed | An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in Classrooms |
| title_short | An Experimentally Validated Analytical Model for Aerosol Number Concentration Reduction in Classrooms |
| title_sort | experimentally validated analytical model for aerosol number concentration reduction in classrooms |
| topic | Analytical model Aerosol concentration Classrooms Ventilation system Indoor air quality COVID-19 |
| url | https://doi.org/10.4209/aaqr.210038 |
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