Performance of Mobility Analyzer for Size Classification of Polydisperse Soot Aggregates from Laboratory Flames
Abstract
Mobility sizing is a common technique for measuring particulate matter from various combustion sources and guiding emission regulations for atmospheric pollutants. It has several important advantages including commercial availability, real-time monitoring, and convenient control/data acquisition. Consequently, mobility sizing instruments have been widely employed in the combustion and aerosol fields for investigating many types of fine particles. However, there are notable ambiguities regarding their performances for reliable particulate characterizations due to extensive sample manipulations and questionable data interpretation for non-spherical aggregates. in this study, we extend our recent experimental evaluations of the mobility sizing technique for soot aggregates at the exhaust of a diesel engine to well-defined laminar flames. Polydisperse populations of aggregated particles emitted from the flames are sampled by two different differential mobility analyzers to classify them according to their mobility diameters. Soot size distributions are also quantified by in-situ laser scattering/extinction measurements and ex-situ thermophoretic sampling/TEM. These three experimental techniques are compared to assess the correspondence between mobility diameters and actual particulate properties.
Recommended Citation
Y. Teng and U. O. Koylu, "Performance of Mobility Analyzer for Size Classification of Polydisperse Soot Aggregates from Laboratory Flames," 5th US Combustion Meeting 2007, vol. 3, pp. 1815 - 1820, Combustion Institute, Jan 2007.
Department(s)
Mechanical and Aerospace Engineering
International Standard Book Number (ISBN)
978-160423811-2
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Combustion Institute, All rights reserved.
Publication Date
01 Jan 2007
