COVID-19 dispersion in naturally-ventilated classrooms: a study on inlet-outlet characteristics

Date

2022-06-01

Author

Abbas, Günsu Merin
Gürsel Dino, İpek

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Infectious aerosol dispersion poses significant infection risks (i.e., COVID-19) in classrooms due to dense and long occupancy. Natural ventilation is an effective strategy to reduce airborne infection transmission. The building-related parameters, particularly openings, determine the natural ventilation effectiveness in reducing contaminant dispersion, necessitating an inquiry due to complex dispersion and airflow patterns. This paper investigates the correlation between window height, natural ventilation, and COVID-19 dispersion. A simulation pipeline involving a parametric 3D design environment, computational fluid dynamics (CFD), and energy simulations is developed and implemented on nine design scenarios representing different inlet-outlet heights of a free-running (no heating, cooling or mechanical ventilation) classroom. The inlet height and the inlet-outlet height difference have a considerable impact on indoor infection risk confirming that stack ventilation and the Bernoulli effect decrease indoor contaminant concentration. Proximity to openings does not ensure lower contamination levels. Proximity to the contaminant does not result in higher contamination levels.

URI

https://hdl.handle.net/11511/98060

Journal

JOURNAL OF BUILDING PERFORMANCE SIMULATION

DOI

https://doi.org/10.1080/19401493.2022.2063946

Collections

Department of Architecture, Article

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Citation Formats

G. M. Abbas and İ. Gürsel Dino, “COVID-19 dispersion in naturally-ventilated classrooms: a study on inlet-outlet characteristics,” JOURNAL OF BUILDING PERFORMANCE SIMULATION, vol. 15, no. 5, pp. 656–677, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/98060.