Real-time characterization of ultrafine and accumulation mode particles in ambient combustion aerosols

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Authors
Bukowiecki, Nicolas
Kittelson, David B.
Watts, Winthrop F.
Baltensperger, Urs
Author (Corporation)
Publication date
08/2002
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01A - Journal article
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Parent work
Journal of Aerosol Science
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Volume
33
Issue / Number
8
Pages / Duration
1139-1154
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Publisher / Publishing institution
Elsevier
Place of publication / Event location
Amsterdam
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Abstract
The diffusion charging sensor (DC), photoelectric aerosol sensor (PAS) and condensation particle counter (CPC) are real-time particle instruments that have time resolutions < 10s and are suitable for field use. This paper shows how the relative fraction of nuclei mode particles (D ≤ 50nm) in ambient combustion aerosols can be determined, along with the coverage degree of the respective accumulation mode particles with a modal diameter of ~ 100nm. Main tools for interpretation are the diameter of average surface DAve,S (obtained from CPC and DC measurements) and PAS/DC versus DAve,S scatter plots. Compared to the scanning mobility particle sizer (SMPS), which is a standard instrument for aerosol particle size distribution measurements, the presented method has a limited accuracy, but is substantially faster. Additionally, it is experimentally less demanding than SMPS measurements, especially for field applications.
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550 - Geowissenschaften
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ISBN
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0021-8502
Language
English
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No
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Published
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Closed
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Citation
BUKOWIECKI, Nicolas, David B. KITTELSON, Winthrop F. WATTS, Heinz BURTSCHER, Ernest WEINGARTNER und Urs BALTENSPERGER, 2002. Real-time characterization of ultrafine and accumulation mode particles in ambient combustion aerosols. Journal of Aerosol Science. August 2002. Bd. 33, Nr. 8, S. 1139–1154. DOI 10.1016/s0021-8502(02)00063-0. Verfügbar unter: https://irf.fhnw.ch/handle/11654/46831