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Issues for Measuring Diesel Exhaust Particulates Using Laser Induced Incandescence
Technical Paper
2001-01-0217
ISSN: 0148-7191, e-ISSN: 2688-3627
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SAE 2001 World Congress
Language:
English
Abstract
A number of studies in the recent past have identified Laser Induced Incandescence (LII) as a versatile technique for measurement of soot concentration in flames. Recently, a number of researchers have focused their attention in adapting this technique to measure particulates in diesel exhausts. However, the agreement with established physical sampling techniques, such as the EPA recommended filter paper collection method, was found to be less than ideal. This paper reports our efforts to adapt this technique for diesel exhaust characterization. Many of the factors affecting LII signal were identified through computer modeling. Parameters that could not be determined through such a model were determined experimentally following a parametric study. Subsequently, LII measurements were performed in the exhaust of a modified lab burner, with conditions close to that of diesel engine exhausts. Such measurements show excellent agreement with those performed through filter paper collection by a TEOM.
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Gupta, S., Poola, R., and Sekar, R., "Issues for Measuring Diesel Exhaust Particulates Using Laser Induced Incandescence," SAE Technical Paper 2001-01-0217, 2001, https://doi.org/10.4271/2001-01-0217.Also In
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