Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/89608
PIRA download icon_1.1View/Download Full Text
Title: Aerosol generation rates for showerheads
Authors: Zhou, Y 
Mui, KW 
Wong, LT 
Tsui, PH 
Chan, WK 
Issue Date: 1-Sep-2019
Source: Building services engineering research and technology, 1 Sept. 2019, v. 40, no. 5, p. 595-610
Abstract: Aerosolization of water from discharging water appliances provides a transmission medium for Legionnaires’ disease. The quantity of aerosolized droplets influences the infection of Legionnaires’ disease. This study investigates the aerosol generation rates of four sample showerheads experimentally in a mechanically ventilated test chamber, assisted by computational fluid dynamics simulations. The results show that aerosol mass generation rate decreases with the showerhead resistance factor but increases with the water supply pressure, nozzle area ratio, flow rate, spray jet velocity, momentum and force. There is no significant correlation between aerosol mass generation rate and water spray uniformity (p > 0.05, t-test). Furthermore, the aerosol mass generation rates and aerosol particle generation rates determined for the sample showerheads are in the ranges of 1.42 × 10−5 to 5.52 × 10−5 g s−1 and 0.35 × 106 to 1.35 × 106 particles s−1, respectively. Practical application: The proposed expression of aerosol generation rate can be the referenced guidance for future showerhead design to limit the aerosol generation rate.
Keywords: Aerosol generation
Chamber test
Computational fluid dynamics
Legionnaires’ disease
Showerhead
Publisher: SAGE Publications
Journal: Building services engineering research and technology 
ISSN: 0143-6244
EISSN: 1477-0849
DOI: 10.1177/0143624418824839
Rights: This is the accepted version of the publication Zhou, Y., Mui, K. W., Wong, L. T., Tsui, P. H., & Chan, W. K., Aerosol generation rates for showerheads, Building Services Engineering Research and Technology (Volume 40 and issue 5) pp. 595-610. Copyright © 2019 (The Author(s)). DOI: 10.1177/0143624418824839.
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
1_ShowerAerosol20181114NoTrack.pdfPre-Published version901.84 kBAdobe PDFView/Open
Open Access Information
Status open access
File Version Final Accepted Manuscript
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

97
Last Week
0
Last month
Citations as of Mar 24, 2024

Downloads

18
Citations as of Mar 24, 2024

SCOPUSTM   
Citations

1
Citations as of Mar 28, 2024

WEB OF SCIENCETM
Citations

1
Citations as of Mar 28, 2024

Google ScholarTM

Check

Altmetric


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