Abstract
Jet fans are increasingly preferred over traditional ducted systems as a means of ventilating pollutants in large environments such as underground car parks. The spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)—which causes the novel coronavirus disease—through the jet fans in underground car parks has been considered a matter of key concern. A quantitative understanding of the propagation of respiratory droplets/particles/aerosols containing the virus is important. However, to date, studies have yet to demonstrate viral (e.g., SARS-CoV-2) transmission in underground car parks equipped with jet fans. In this paper, numerical simulation has been performed to assess the effects of jet fans on the spreading of viruses inside underground car parks.
Highlights
Since December 2019, the novel coronavirus disease (COVID19) has become a major concern for the global population
Considering the characteristics of respiratory droplet/particle/aerosol transmission in wind conditions, there will be a large number of viruses within an underground car park when a confirmed case sneezes near the jet fan
The respiratory particle concentrations in underground car parks depend on the jet fan air velocity
Summary
Since December 2019, the novel coronavirus disease (COVID19) has become a major concern for the global population. Considering the characteristics of respiratory droplet/particle/aerosol transmission in wind conditions, there will be a large number of viruses within an underground car park when a confirmed case sneezes near the jet fan. Continuous airflow of jet fans can increase the transmissibility of viruscontaining droplets/particles/aerosols in underground car parks. The main aim of our work is to present predictions of the respiratory droplet/particle/aerosol spreading, resulting from the continuous airflow of jet fans This helps investigators gain a deep understanding of the behavior of complex air flows inside underground car parks, which are engaged with the dynamics of viruses. We suggest six tips to reduce the risk of infection through the respiratory droplet transmission during the use of the jet fan air-conditioning system in underground car parks
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
