TY - GEN
T1 - Ventilation performance index regarding airborne infection risk control of respiratory diseases
AU - Zhang, Sheng
AU - Niu, Dun
N1 - Publisher Copyright:
© 2023 Healthy Buildings 2023: Asia and Pacific Rim. All rights reserved.
PY - 2023
Y1 - 2023
N2 - Ventilation indices are widely used to indicate the airborne infection risk of respiratory infectious diseases due to their practical convenience. This study introduces two ventilation indices, i.e., the air utilization effectiveness (AUE) and contaminant dispersion index (CDI), to properly evaluate the airborne infection risk control performance of air distribution. Experimentally validated CFD simulations in a hospital ward with different air distributions, including mixing ventilation, downward ventilation, displacement ventilation, and stratum ventilation, are used to test the introduced ventilation indices. The results recommend the integrated index of AUE and CDI to indicate the overall airborne infection risk and CDI to indicate the local airborne infection risk, compared with the commonly used ventilation indices of the age of ai, air change effectiveness, and contaminant removal effectiveness.
AB - Ventilation indices are widely used to indicate the airborne infection risk of respiratory infectious diseases due to their practical convenience. This study introduces two ventilation indices, i.e., the air utilization effectiveness (AUE) and contaminant dispersion index (CDI), to properly evaluate the airborne infection risk control performance of air distribution. Experimentally validated CFD simulations in a hospital ward with different air distributions, including mixing ventilation, downward ventilation, displacement ventilation, and stratum ventilation, are used to test the introduced ventilation indices. The results recommend the integrated index of AUE and CDI to indicate the overall airborne infection risk and CDI to indicate the local airborne infection risk, compared with the commonly used ventilation indices of the age of ai, air change effectiveness, and contaminant removal effectiveness.
KW - air utilization effectiveness
KW - Airborne infection
KW - contaminant dispersion index
KW - Ventilation indices
UR - https://www.scopus.com/pages/publications/85189931883
M3 - 会议稿件
AN - SCOPUS:85189931883
T3 - Healthy Buildings 2023: Asia and Pacific Rim
BT - Healthy Buildings 2023
PB - International Society of Indoor Air Quality and Climate
T2 - Healthy Buildings 2023: Asia and Pacific Rim
Y2 - 17 July 2023 through 19 July 2023
ER -
