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Assessing school ventilation strategies from the perspective of health, environment, and energy

Author

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  • Pollozhani, Fatos
  • McLeod, Robert S.
  • Schwarzbauer, Christian
  • Hopfe, Christina J.

Abstract

The global COVID-19 pandemic has highlighted the importance of indoor air quality and ventilation to mitigate the spread of respiratory viral infections. Schools, in particular, represent a vulnerable environment with high occupancy rates, prolonged exposure times and often inadequately ventilated rooms. This paper evaluates the functionality of different natural and retrofitted mechanical ventilation strategies in this context. An experimental setup, combining empirical measurements with building performance simulation and analytical risk analysis was used to assess key performance characteristics, including the energetic performance, thermal comfort, indoor air quality and the airborne infection risk of SARS-CoV-2. The results of this study underscore the need for a holistic approach to ventilation design in schools, taking into consideration the balance between energy performance, carbon emissions, thermal comfort, indoor air quality and associated health factors. We demonstrate that the risk of one or more long-range airborne infections, with the SARS-CoV-2 Omicron variant, can be reduced by >50% through appropriate use of natural, mechanical or hybrid ventilation in a classroom setting. Analytical modelling demonstrates that this risk can be further reduced, by an order of magnitude, through the use of FFP2 masks.

Suggested Citation

  • Pollozhani, Fatos & McLeod, Robert S. & Schwarzbauer, Christian & Hopfe, Christina J., 2024. "Assessing school ventilation strategies from the perspective of health, environment, and energy," Applied Energy, Elsevier, vol. 353(PA).
  • Handle: RePEc:eee:appene:v:353:y:2024:i:pa:s0306261923013259
    DOI: 10.1016/j.apenergy.2023.121961
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    References listed on IDEAS

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    1. Jos Lelieveld & Frank Helleis & Stephan Borrmann & Yafang Cheng & Frank Drewnick & Gerald Haug & Thomas Klimach & Jean Sciare & Hang Su & Ulrich Pöschl, 2020. "Model Calculations of Aerosol Transmission and Infection Risk of COVID-19 in Indoor Environments," IJERPH, MDPI, vol. 17(21), pages 1-18, November.
    2. Laura Moscoviz & David K. Evans, 2022. "Learning Loss and Student Dropouts during the COVID-19 Pandemic: A Review of the Evidence Two Years after Schools Shut Down," Working Papers 609, Center for Global Development.
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