Are Sooting Premixed Porous-Plug Burner Flames One-Dimensional? A Laser-Based Experimental Investigation
Olofsson, Nils-Erik LU ; Bladh, Henrik LU ; Bohlin, Alexis LU ; Johnsson, Jonathan LU and Bengtsson, Per-Erik LU
(2013)
In Combustion Science and Technology
185(2).
p.293-309
- Abstract
- The one-dimensional character of sooting premixed porous-plug (McKenna) burner flames has been examined, motivated by recent investigations where the one-dimensionality has been questioned. The examination employs laser diagnostic techniques to measure different characteristics: temperature using rotational coherent anti-Stokes Raman spectroscopy (CARS) and soot properties using laser-induced incandescence and elastic light scattering. Special attention has been paid to the influence of an outer shroud gas flow of either nitrogen or air. The nitrogen shroud gas leads to flame cooling at the outer edge, whereas the air shroud results in heating through the oxidation of CO/H-2/soot. This generally results in a more inhomogeneous spatial... (More)
- The one-dimensional character of sooting premixed porous-plug (McKenna) burner flames has been examined, motivated by recent investigations where the one-dimensionality has been questioned. The examination employs laser diagnostic techniques to measure different characteristics: temperature using rotational coherent anti-Stokes Raman spectroscopy (CARS) and soot properties using laser-induced incandescence and elastic light scattering. Special attention has been paid to the influence of an outer shroud gas flow of either nitrogen or air. The nitrogen shroud gas leads to flame cooling at the outer edge, whereas the air shroud results in heating through the oxidation of CO/H-2/soot. This generally results in a more inhomogeneous spatial particle size profile for the nitrogen shroud flame, with smaller particle sizes at the flame edge. The present results emphasize the need to characterize burner and operating conditions accurately, and also, regarding parameters that at first glance seem less relevant, such as the shroud gas, to provide useful data for comparison between laboratories. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3932313
- author
- Olofsson, Nils-Erik
LU
; Bladh, Henrik
LU
; Bohlin, Alexis
LU
; Johnsson, Jonathan
LU
and Bengtsson, Per-Erik
LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Coherent anti-Stokes Raman spectroscopy, Elastic light scattering, Flat, flame, Laser-induced incandescence, Soot
- in
- Combustion Science and Technology
- volume
- 185
- issue
- 2
- pages
- 293 - 309
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000319172500006
- scopus:84874348037
- ISSN
- 1563-521X
- DOI
- 10.1080/00102202.2012.718006
- language
- English
- LU publication?
- yes
- id
- 5f757348-f0a4-44d0-9849-aff4c2d698c0 (old id 3932313)
- date added to LUP
- 2016-04-01 10:08:10
- date last changed
- 2022-01-25 20:03:01
@article{5f757348-f0a4-44d0-9849-aff4c2d698c0,
abstract = {{The one-dimensional character of sooting premixed porous-plug (McKenna) burner flames has been examined, motivated by recent investigations where the one-dimensionality has been questioned. The examination employs laser diagnostic techniques to measure different characteristics: temperature using rotational coherent anti-Stokes Raman spectroscopy (CARS) and soot properties using laser-induced incandescence and elastic light scattering. Special attention has been paid to the influence of an outer shroud gas flow of either nitrogen or air. The nitrogen shroud gas leads to flame cooling at the outer edge, whereas the air shroud results in heating through the oxidation of CO/H-2/soot. This generally results in a more inhomogeneous spatial particle size profile for the nitrogen shroud flame, with smaller particle sizes at the flame edge. The present results emphasize the need to characterize burner and operating conditions accurately, and also, regarding parameters that at first glance seem less relevant, such as the shroud gas, to provide useful data for comparison between laboratories.}},
author = {{Olofsson, Nils-Erik and Bladh, Henrik and Bohlin, Alexis and Johnsson, Jonathan and Bengtsson, Per-Erik}},
issn = {{1563-521X}},
keywords = {{Coherent anti-Stokes Raman spectroscopy; Elastic light scattering; Flat; flame; Laser-induced incandescence; Soot}},
language = {{eng}},
number = {{2}},
pages = {{293--309}},
publisher = {{Taylor & Francis}},
series = {{Combustion Science and Technology}},
title = {{Are Sooting Premixed Porous-Plug Burner Flames One-Dimensional? A Laser-Based Experimental Investigation}},
url = {{http://dx.doi.org/10.1080/00102202.2012.718006}},
doi = {{10.1080/00102202.2012.718006}},
volume = {{185}},
year = {{2013}},
}