ArticleSustainable cities and society2022
Investigation of airborne particle exposure in an office with mixing and displacement ventilation.
Article in Sustainable cities and society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Comparing strategies for the mitigation of SARS-CoV-2 airborne infection risk in tiered auditorium venues.Communications engineering · 2024Article
- Human exposure to air contaminants under the far-UVC system operation in an office: effects of lamp position and ventilation condition.Scientific reports · 2024Article
- Aggravated exposure risks of children to multipath transmitted pathogens in indoor environments.iScience · 2023Article
- Virus-laden droplet nuclei in vortical structures associated with recirculation zones in indoor environments: A possible airborne transmission of SARS-CoV-2.Environmental advances · 2023Review
- Transmission and infection risk of COVID-19 when people coughing in an elevator.Building and environment · 2023Article
- Analysis on the energy efficiency, thermal performance and infection intervention characteristics of interactive cascade ventilation (ICV).Journal of building engineering · 2023Article
- Implemented indoor airborne transmission mitigation strategies during COVID-19: a systematic review.Journal of environmental health science & engineering · 2023Review
- Experimental study on the control effects of different strategies on particle transportation in a conference room: Mechanical ventilation, baffle, portable air cleaner, and desk air cleaner.Atmospheric pollution research · 2023Article
- Analysis on the thermal performance of low-temperature radiant floor coupled with intermittent stratum ventilation (LTR-ISV) for space heating.Energy and buildings · 2023Article
- Development of a non-contact mobile screening center for infectious diseases: Effects of ventilation improvement on aerosol transmission prevention.Sustainable cities and society · 2022Article
- A numerical approach for preventing the dispersion of infectious disease in a meeting room.Scientific reports · 2022Article
- Experiment and numerical investigation of inhalable particles and indoor environment with ventilation system.Energy and buildings · 2022Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Effective ventilation could reduce COVID-19 infection in buildings. By using a computational fluid dynamics technique and advanced experimental measurement methods, this investigation studied the air velocity, air temperature, and particle number concentration in an office under a mixing ventilation (MV) system and a displacement ventilation (DV) system with different ventilation rates. The results show reasonably good agreement between the computed results and measured data. The air temperature and particle number concentration under the MV system were uniform, while the DV system generated a vertical stratification of the air temperature and particle number concentration. Because of the vertical stratification of the particle number concentration, the DV system provided better indoor air quality than the MV system. An increase in ventilation rate can reduce the particle concentration under the two systems. However, the improvement was not proportional to the ventilation rate. The increase in ventilation rate from 2 ACH to 4 ACH and 6 ACH for MV system reduced the particle concentration by 20% and 60%, respectively. While for the DV system, increasing the ventilation rate from 2 ACH to 4 ACH and 6 ACH reduced the particle concentration by only 10% and 40%, respectively. The ventilation effectiveness of the MV system was close to 1.0, but it was much higher for the DV system. Therefore, the DV system was better than the MV system.
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