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On-road and laboratory evaluation of combustion aerosols-Part1: Summary [An article from: Journal of Aerosol Science]
Book Details
Author(s)
D.B. Kittelson, W.F. Watts, J.P. Johnson
Publisher
Elsevier
ISBN / ASIN
B000P6OFMI
ISBN-13
978B000P6OFM6
Availability
Available for download now
Marketplace
United States 🇺🇸
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Description
This digital document is a journal article from Journal of Aerosol Science, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The objective was to characterize diesel exhaust aerosols on road and to duplicate the results in the laboratory without altering the physical characteristics of the nuclei mode. On-road emissions from four, heavy-duty diesel truck engines were measured. The same engines were reevaluated in the manufacturers' laboratories. For highway cruise and acceleration conditions, all engines produced bimodal size distributions with the nuclei mode ranging in size from 6 to 11nm and the accumulation mode from 52 to 62nm. On-road size distribution measurements nearly always showed a nuclei mode while laboratory measurements showed a nuclei mode under many, but not all conditions. Laboratory studies showed that nuclei mode particles consisted mainly of heavy hydrocarbons. More than 97% of the volume of 12 and 30nm particles disappeared on heating to 400^oC. The volatility resembled that of C24-C32 n-alkanes implying a significant contribution from lubricating oil.
Description:
The objective was to characterize diesel exhaust aerosols on road and to duplicate the results in the laboratory without altering the physical characteristics of the nuclei mode. On-road emissions from four, heavy-duty diesel truck engines were measured. The same engines were reevaluated in the manufacturers' laboratories. For highway cruise and acceleration conditions, all engines produced bimodal size distributions with the nuclei mode ranging in size from 6 to 11nm and the accumulation mode from 52 to 62nm. On-road size distribution measurements nearly always showed a nuclei mode while laboratory measurements showed a nuclei mode under many, but not all conditions. Laboratory studies showed that nuclei mode particles consisted mainly of heavy hydrocarbons. More than 97% of the volume of 12 and 30nm particles disappeared on heating to 400^oC. The volatility resembled that of C24-C32 n-alkanes implying a significant contribution from lubricating oil.
