On-road quantification of the key characteristics of automobile HVAC systems in relation to in-cabin submicrometer particle pollution
Knibbs, Luke D., de Dear, Richard J., Morawska, Lidia, & Atkinson, Steven E. (2008) On-road quantification of the key characteristics of automobile HVAC systems in relation to in-cabin submicrometer particle pollution. In The 11th International Conference on Indoor Air Quality and Climate: Indoor Air 2008, 17th August to 22nd August 2008, Copenhagen, Denmark.
The key characteristics of vehicles which determine in-cabin pollutant concentrations from an external source are outside air flow into the compartment and the protection to pollutant penetration offered by the HVAC system and vehicle shell. We have quantified these variables in a fleet of vehicles of varying age and manufacturer under a recirculation ventilation setting, with a specific focus on submicrometer particulate matter. The particulate measurements were performed in an underground road tunnel in Sydney, Australia. The high levels of outside air infiltration and lack of a filter in the older vehicle examined (1989 Mazda 121) contributed to significantly increased I/O particulate ratios when compared to the newer vehicle (2005 VW Golf), which was fitted with a filter, and inside which outside air infiltration was ~4% of that measured in the older vehicle for the average speed maintained during tunnel trips. The particle concentrations measured in our study compare reasonably with those made in similar studies conducted overseas.
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|Item Type:||Conference Paper|
|Keywords:||Automobile ventilation, Submicrometer particles, Particle penetration, I/O ratio, On, road testing|
|Subjects:||Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Sciences not elsewhere classified (040199)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2008 (please consult author)|
|Deposited On:||03 Nov 2008|
|Last Modified:||29 Feb 2012 23:52|
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