Investigation into anti-airborne infection performance of stratum ventilation
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 29-38 |
Journal / Publication | Building and Environment |
Volume | 54 |
Publication status | Published - Aug 2012 |
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Abstract
Stratum ventilation has been proposed to accommodate the elevated room temperatures recommended by several governments in East Asia. Besides thermal comfort, indoor air quality and energy consumption, one of the key issues in evaluating the performance of stratum ventilation is whether this air distribution method performs significantly different in anti-airborne infection. Particle dispersions of three representative scenarios in a classroom under displacement ventilation and under stratum ventilation respectively are investigated by numerical simulations. The drift-flux model based on a Eulerian-Eulerian approach has been validated by experimental data to simulate the particle movement in the room. The results show that the flow patterns created by different ventilation methods have great influence on the particle fates. The particle concentrations in the breathing zone under stratum ventilation are significantly less than that under displacement ventilation, which implies that the risk of pathogen inhalation under stratum ventilation is lower than that under displacement ventilation. © 2012 Elsevier Ltd.
Research Area(s)
- Air distribution, Anti-airborne infection performance, Droplet dispersion, Stratum ventilation
Citation Format(s)
Investigation into anti-airborne infection performance of stratum ventilation. / Lin, Zhang; Wang, Jinliang; Yao, Ting et al.
In: Building and Environment, Vol. 54, 08.2012, p. 29-38.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review