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Investigation of laminar flame speeds of typical syngas using laser based Bunsen method and kinetic simulation

He, Yong; Wang, Zhihua; Yang, Li; Whiddon, Ronald LU ; Li, Zhongshan LU ; Zhou, Junhu and Cen, Kefa (2012) In Fuel 95(1). p.206-213
Abstract
Synthetic gas (syngas) fuels are promising energy sources in the future. In the current work, laminar flame speeds of typical syngas with different H-2 contents were studied using both experimental measurements and kinetic simulations. Measurements were carried out using the Bunsen method with the flame area derived from the OH planar laser-induced fluorescence (OH-PLIF) images; while kinetic simulations were made using CHEMKIN with two mechanisms: GRI-Mech 3.0 and USC-Mech II. The OH-PLIF based Bunsen method was validated with previous results. Both the experimental and simulated results indicated that the flame speed of syngas increased with H-2 concentration, which, based on the simulation, is attributed to the rapid production of... (More)
Synthetic gas (syngas) fuels are promising energy sources in the future. In the current work, laminar flame speeds of typical syngas with different H-2 contents were studied using both experimental measurements and kinetic simulations. Measurements were carried out using the Bunsen method with the flame area derived from the OH planar laser-induced fluorescence (OH-PLIF) images; while kinetic simulations were made using CHEMKIN with two mechanisms: GRI-Mech 3.0 and USC-Mech II. The OH-PLIF based Bunsen method was validated with previous results. Both the experimental and simulated results indicated that the flame speed of syngas increased with H-2 concentration, which, based on the simulation, is attributed to the rapid production of highly reactive radicals and the acceleration of chain-branching reactions by these radicals. In general, predictions with both mechanisms agreed well with measurements, especially for fuel-lean conditions; simulations with USC-Mech II gave better agreement with experimental results at Phi = 0.8 and 0.9 (discrepancy <5%). (C) 2011 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Syngas, Laminar flame speed, OH PLIF, Bunsen flame, Kinetic simulation
in
Fuel
volume
95
issue
1
pages
206 - 213
publisher
Elsevier
external identifiers
  • wos:000300615900027
  • scopus:84857065341
ISSN
1873-7153
DOI
10.1016/j.fuel.2011.09.056
language
English
LU publication?
yes
id
62055a3a-d512-4b09-b7c4-c9f2aa8b3e6e (old id 2378719)
date added to LUP
2012-03-27 14:15:12
date last changed
2017-06-04 04:06:35
@article{62055a3a-d512-4b09-b7c4-c9f2aa8b3e6e,
  abstract     = {Synthetic gas (syngas) fuels are promising energy sources in the future. In the current work, laminar flame speeds of typical syngas with different H-2 contents were studied using both experimental measurements and kinetic simulations. Measurements were carried out using the Bunsen method with the flame area derived from the OH planar laser-induced fluorescence (OH-PLIF) images; while kinetic simulations were made using CHEMKIN with two mechanisms: GRI-Mech 3.0 and USC-Mech II. The OH-PLIF based Bunsen method was validated with previous results. Both the experimental and simulated results indicated that the flame speed of syngas increased with H-2 concentration, which, based on the simulation, is attributed to the rapid production of highly reactive radicals and the acceleration of chain-branching reactions by these radicals. In general, predictions with both mechanisms agreed well with measurements, especially for fuel-lean conditions; simulations with USC-Mech II gave better agreement with experimental results at Phi = 0.8 and 0.9 (discrepancy &lt;5%). (C) 2011 Elsevier Ltd. All rights reserved.},
  author       = {He, Yong and Wang, Zhihua and Yang, Li and Whiddon, Ronald and Li, Zhongshan and Zhou, Junhu and Cen, Kefa},
  issn         = {1873-7153},
  keyword      = {Syngas,Laminar flame speed,OH PLIF,Bunsen flame,Kinetic simulation},
  language     = {eng},
  number       = {1},
  pages        = {206--213},
  publisher    = {Elsevier},
  series       = {Fuel},
  title        = {Investigation of laminar flame speeds of typical syngas using laser based Bunsen method and kinetic simulation},
  url          = {http://dx.doi.org/10.1016/j.fuel.2011.09.056},
  volume       = {95},
  year         = {2012},
}