Document Detail


A Recirculation Aerosol Wind Tunnel for Evaluating Aerosol Samplers and Measuring Particle Penetration through Protective Clothing Materials.
MedLine Citation:
PMID:  21831849     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A recirculation aerosol wind tunnel was designed to maintain a uniform airflow and stable aerosol size distribution for evaluating aerosol sampler performance and determining particle penetration through protective clothing materials. The oval-shaped wind tunnel was designed to be small enough to fit onto a lab bench, have optimized dimensions for uniformity in wind speed and particle size distributions, sufficient mixing for even distribution of particles, and minimum particle losses. Performance evaluation demonstrates a relatively high level of spatial uniformity, with a coefficient of variation of 1.5-6.2% for wind velocities between 0.4 and 2.8 m s(-1) and, in this range, 0.8-8.5% for particles between 50 and 450 nm. Aerosol concentration stabilized within the first 5-20 min with, approximately, a count median diameter of 135 nm and geometric standard deviation of 2.20. Negligible agglomerate growth and particle loss are suggested. The recirculation design appears to result in unique features as needed for our research.
Authors:
Peter A Jaques; Ta-Chih Hsiao; Pengfei Gao
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of occupational hygiene     Volume:  55     ISSN:  1475-3162     ISO Abbreviation:  Ann Occup Hyg     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-08-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0203526     Medline TA:  Ann Occup Hyg     Country:  England    
Other Details:
Languages:  eng     Pagination:  784-96     Citation Subset:  IM    
Affiliation:
URS Corporation, 626 Cochrans Mill Road, Pittsburgh, PA 15236, USA.
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