Particulate measurement issues in diesel exhausts using laser induced incandescence
A number of studies in the recent past have identified Laser Induced Incandescence (LII) as a versatile technique for in-flame measurement of soot concentrations. Recently, a number of researchers have focused their attention in adapting this technique to measure particulate 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 the 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 using the standard filter paper collection technique.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 759070
- Report Number(s):
- ANL/ES/CP-102272; TRN: AH200029%%170
- Resource Relation:
- Conference: ASME-ICE Fall Technical Conference, Peoria, IL (US), 09/24/2000--09/27/2000; Other Information: PBD: 3 Jul 2000
- Country of Publication:
- United States
- Language:
- English
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