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Premixed jet flame characteristics of syngas using OH planar laser induced fluorescence

Yang, Li; Wang, ZhiHua; Zhu, YanQun; Li, Zhongshan LU ; Zhou, JunHu; Huang, ZhenYu and Cen, KeFa (2011) In Chinese Science Bulletin 56(26). p.2862-2868
Abstract
Lean premixed flame characteristics of several typical low calorific value (LCV) syngases (basis CO/H-2/CH4/CO2/N-2), including bituminous coal, wood residue, corn core, and wheat straw gasification syngas, were investigated using OH planar laser induced fluorescence (PLIF) technology. OH radical distributions within the turbulent flame were measured for different turbulence intensities. Flame structures of syngases were analyzed and characterized with respect to burnt and unburnt regions, flame curvature (sharp cusp), local extinction (holes and penetration), OH reaction layer thickness, wrinkling, and other features, with OH-PLIF instantaneous images and statistical analysis. Results show that H-2 content, LCV, and turbulence intensity... (More)
Lean premixed flame characteristics of several typical low calorific value (LCV) syngases (basis CO/H-2/CH4/CO2/N-2), including bituminous coal, wood residue, corn core, and wheat straw gasification syngas, were investigated using OH planar laser induced fluorescence (PLIF) technology. OH radical distributions within the turbulent flame were measured for different turbulence intensities. Flame structures of syngases were analyzed and characterized with respect to burnt and unburnt regions, flame curvature (sharp cusp), local extinction (holes and penetration), OH reaction layer thickness, wrinkling, and other features, with OH-PLIF instantaneous images and statistical analysis. Results show that H-2 content, LCV, and turbulence intensity are the most effective factors influencing the OH radical intensity and thickness of OH radical layers. The bituminous coal gasification syngas with relatively higher LCV and H-2 content tends to burn out easily. Through changes in thickness of the OH radical layers and signal intensities, the reaction layer can be compressed by intensifying turbulence and thereby the combustion processes of syngas. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
PLIF, LCV, syngas, OH, jet flame
in
Chinese Science Bulletin
volume
56
issue
26
pages
2862 - 2868
publisher
Science China Press
external identifiers
  • wos:000294216000013
  • scopus:80051966209
ISSN
1001-6538
DOI
10.1007/s11434-011-4630-9
language
English
LU publication?
yes
id
2935515a-ea78-4240-bb20-c133226ba7c4 (old id 2161475)
date added to LUP
2011-09-21 13:13:42
date last changed
2017-01-01 05:45:50
@article{2935515a-ea78-4240-bb20-c133226ba7c4,
  abstract     = {Lean premixed flame characteristics of several typical low calorific value (LCV) syngases (basis CO/H-2/CH4/CO2/N-2), including bituminous coal, wood residue, corn core, and wheat straw gasification syngas, were investigated using OH planar laser induced fluorescence (PLIF) technology. OH radical distributions within the turbulent flame were measured for different turbulence intensities. Flame structures of syngases were analyzed and characterized with respect to burnt and unburnt regions, flame curvature (sharp cusp), local extinction (holes and penetration), OH reaction layer thickness, wrinkling, and other features, with OH-PLIF instantaneous images and statistical analysis. Results show that H-2 content, LCV, and turbulence intensity are the most effective factors influencing the OH radical intensity and thickness of OH radical layers. The bituminous coal gasification syngas with relatively higher LCV and H-2 content tends to burn out easily. Through changes in thickness of the OH radical layers and signal intensities, the reaction layer can be compressed by intensifying turbulence and thereby the combustion processes of syngas.},
  author       = {Yang, Li and Wang, ZhiHua and Zhu, YanQun and Li, Zhongshan and Zhou, JunHu and Huang, ZhenYu and Cen, KeFa},
  issn         = {1001-6538},
  keyword      = {PLIF,LCV,syngas,OH,jet flame},
  language     = {eng},
  number       = {26},
  pages        = {2862--2868},
  publisher    = {Science China Press},
  series       = {Chinese Science Bulletin},
  title        = {Premixed jet flame characteristics of syngas using OH planar laser induced fluorescence},
  url          = {http://dx.doi.org/10.1007/s11434-011-4630-9},
  volume       = {56},
  year         = {2011},
}