Abstract
The spreading of a disease largely occurs in buildings or in collective transport. The microenvironment flow processes around people contribute to the cross-infection risk, for example when two persons are standing close to each other. The cross-infection risk is also dependent on the macro-environment e.g., distribution of velocity and turbulence in the room, particularly when the background airflow is strong. The surrounding temperature and the presence of a vertical temperature gradient can also modify airflows in the microenvironment and subsequently influence the cross-infection risk. This work is based on a fully mixed flow in a room without a vertical temperature gradient, considering different room temperatures. Exhalation flow and aerosol distribution are studied by smoke experiments and the cross-infection risk is expressed as concentration in the susceptible breathing zone normalized by the concentration in the room.
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Nielsen, P.V. et al. (2023). Cross-Infection Risk Between Two People in Different Temperature Surroundings Studied by Aerosol Dynamics. In: Wang, L.L., et al. Proceedings of the 5th International Conference on Building Energy and Environment. COBEE 2022. Environmental Science and Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-9822-5_177
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DOI: https://doi.org/10.1007/978-981-19-9822-5_177
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