Please use this identifier to cite or link to this item: https://doi.org/10.1080/10789669.2012.647230
Title: Assessment of the mixing air delivery system ability to protect occupants from the airborne infectious disease transmission using Wells-Riley approach
Authors: Pantelic, J. 
Tham, K.W. 
Issue Date: 2012
Source: Pantelic, J., Tham, K.W. (2012). Assessment of the mixing air delivery system ability to protect occupants from the airborne infectious disease transmission using Wells-Riley approach. HVAC and R Research 18 (4) : 562-574. ScholarBank@NUS Repository. https://doi.org/10.1080/10789669.2012.647230
Abstract: Assessment of a mixing air delivery system's ability to protect occupants from airborne infectious disease transmission using the Wells-Riley equation modified for unsteady heterogenic conditions was performed in this study. Experiments were performed in a field environmental chamber equipped with mixing ventilation, while the cough was simulated using a cough machine. Results show that increase of supply flow rate up to 3 ACH rapidly reduces cough-induced inhalation fraction, but an increase above 6 ACH causes minor changes. When the infectiousness of the index case is relatively low, changes in the supply flow rate will not cause any change in the protective effectiveness of the air delivery system, while for the index case of relatively moderate infectiousness, an increase in supply flow rate up to 6 ACH will improve the protective effectivenes. For the index case of high infectiousness, an increase of supply flow rate will reduce the number of secondary cases for the 8-h exposure period. Maximum protective effectiveness depends only on ability of the system to reduce the exposure, but the index case infectiousness at which this is achieved will depend on the exposure period and exposure reduction. © 2012 Copyright Taylor and Francis Group, LLC.
Source Title: HVAC and R Research
URI: http://scholarbank.nus.edu.sg/handle/10635/45913
ISSN: 10789669
DOI: 10.1080/10789669.2012.647230
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

2
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

1
checked on Nov 19, 2017

Page view(s)

77
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.