Laser-Induced Incandescence for Soot Particle Size Measurements in Premixed Flat Flames
Axelsson, Boman LU ; Collin, Robert LU and Bengtsson, Per-Erik LU
(2000)
In Applied Optics
39(21).
p.3683-3690
- Abstract
- Measurements of soot properties by means of laser-induced incandescence (LII) and combined scattering–extinction were performed in well-characterized premixed ethylene–air flames. In particular, the possibility of using LII as a tool for quantitative particle sizing was investigated. Particle sizes were evaluated from the temporal decay of the LII signal combined with heat balance modeling of laser-heated particles, and these sizes were compared with the particle sizes deduced from scattering–extinction measurements based on isotropic sphere theory. The correspondence was good early in the soot-formation process but less good at later stages, possibly because aggregation to clusters began to occur. A critical analysis has been made of how... (More)
- Measurements of soot properties by means of laser-induced incandescence (LII) and combined scattering–extinction were performed in well-characterized premixed ethylene–air flames. In particular, the possibility of using LII as a tool for quantitative particle sizing was investigated. Particle sizes were evaluated from the temporal decay of the LII signal combined with heat balance modeling of laser-heated particles, and these sizes were compared with the particle sizes deduced from scattering–extinction measurements based on isotropic sphere theory. The correspondence was good early in the soot-formation process but less good at later stages, possibly because aggregation to clusters began to occur. A critical analysis has been made of how uncertainties in different parameters, both experimental and in the model, affect the evaluated particle sizes for LII. A sensitivity analysis of the LII model identified the ambient-flame temperature as a major source of uncertainty in the evaluated particle size, a conclusion that was supported by an analysis based on temporal LII profiles. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4935727
- author
- Axelsson, Boman
LU
; Collin, Robert
LU
and Bengtsson, Per-Erik
LU
- organization
- publishing date
- 2000
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 39
- issue
- 21
- pages
- 8 pages
- publisher
- Optical Society of America
- external identifiers
-
- scopus:0004290455
- ISSN
- 2155-3165
- DOI
- 10.1364/AO.39.003683
- language
- English
- LU publication?
- yes
- id
- af346c93-6ead-4766-8a48-4a33168f2c9a (old id 4935727)
- date added to LUP
- 2016-04-04 11:54:31
- date last changed
- 2023-02-24 10:01:46
@article{af346c93-6ead-4766-8a48-4a33168f2c9a,
abstract = {{Measurements of soot properties by means of laser-induced incandescence (LII) and combined scattering–extinction were performed in well-characterized premixed ethylene–air flames. In particular, the possibility of using LII as a tool for quantitative particle sizing was investigated. Particle sizes were evaluated from the temporal decay of the LII signal combined with heat balance modeling of laser-heated particles, and these sizes were compared with the particle sizes deduced from scattering–extinction measurements based on isotropic sphere theory. The correspondence was good early in the soot-formation process but less good at later stages, possibly because aggregation to clusters began to occur. A critical analysis has been made of how uncertainties in different parameters, both experimental and in the model, affect the evaluated particle sizes for LII. A sensitivity analysis of the LII model identified the ambient-flame temperature as a major source of uncertainty in the evaluated particle size, a conclusion that was supported by an analysis based on temporal LII profiles.}},
author = {{Axelsson, Boman and Collin, Robert and Bengtsson, Per-Erik}},
issn = {{2155-3165}},
language = {{eng}},
number = {{21}},
pages = {{3683--3690}},
publisher = {{Optical Society of America}},
series = {{Applied Optics}},
title = {{Laser-Induced Incandescence for Soot Particle Size Measurements in Premixed Flat Flames}},
url = {{https://lup.lub.lu.se/search/files/5883168/4936882.pdf}},
doi = {{10.1364/AO.39.003683}},
volume = {{39}},
year = {{2000}},
}