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Intracavity Laser Absorption Spectroscopy Study of HCO Radicals during Methane to Hydrogen Conversion in Very Rich Flames

Fomin, Alexey; Zavlev, Tatyana; Alekseev, Vladimir LU ; Konnov, Alexander LU ; Rahinov, Igor and Cheskis, Sergey (2015) In Energy & Fuels 29(9). p.6146-6154
Abstract
Stoichiometric and very rich flames of methane have been investigated using nonintrusive laser diagnostics. Absolute concentration profiles of HCO were measured by intracavity laser absorption spectroscopy, and temperature profiles were obtained with laser-induced fluorescence of OH. Premixed CH4 + O-2 + N-2 flames were stabilized at a pressure of 30 +/- 0.3 Torr. These new experimental data were compared with predictions of two models: GRI-mech. 3.0 and Aramco mech. 1.3. GRI-mech. performs better in a stoichiometric flame, whereas Aramco mech. is in better agreement with experiments in the rich flames. Detailed analysis of the behavior of these two models revealed that similar performance is essentially fortuitous and explained by... (More)
Stoichiometric and very rich flames of methane have been investigated using nonintrusive laser diagnostics. Absolute concentration profiles of HCO were measured by intracavity laser absorption spectroscopy, and temperature profiles were obtained with laser-induced fluorescence of OH. Premixed CH4 + O-2 + N-2 flames were stabilized at a pressure of 30 +/- 0.3 Torr. These new experimental data were compared with predictions of two models: GRI-mech. 3.0 and Aramco mech. 1.3. GRI-mech. performs better in a stoichiometric flame, whereas Aramco mech. is in better agreement with experiments in the rich flames. Detailed analysis of the behavior of these two models revealed that similar performance is essentially fortuitous and explained by balancing of different reactions involved in HCO formation and consumption. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Energy & Fuels
volume
29
issue
9
pages
6146 - 6154
publisher
The American Chemical Society
external identifiers
  • wos:000363068200065
  • scopus:84941915816
ISSN
0887-0624
DOI
10.1021/acs.energyfuels.5b01497
language
English
LU publication?
yes
id
8b5b4b57-64f5-47ab-8b68-19a10ed4c748 (old id 8201582)
date added to LUP
2015-11-26 11:42:54
date last changed
2017-01-01 06:14:19
@article{8b5b4b57-64f5-47ab-8b68-19a10ed4c748,
  abstract     = {Stoichiometric and very rich flames of methane have been investigated using nonintrusive laser diagnostics. Absolute concentration profiles of HCO were measured by intracavity laser absorption spectroscopy, and temperature profiles were obtained with laser-induced fluorescence of OH. Premixed CH4 + O-2 + N-2 flames were stabilized at a pressure of 30 +/- 0.3 Torr. These new experimental data were compared with predictions of two models: GRI-mech. 3.0 and Aramco mech. 1.3. GRI-mech. performs better in a stoichiometric flame, whereas Aramco mech. is in better agreement with experiments in the rich flames. Detailed analysis of the behavior of these two models revealed that similar performance is essentially fortuitous and explained by balancing of different reactions involved in HCO formation and consumption.},
  author       = {Fomin, Alexey and Zavlev, Tatyana and Alekseev, Vladimir and Konnov, Alexander and Rahinov, Igor and Cheskis, Sergey},
  issn         = {0887-0624},
  language     = {eng},
  number       = {9},
  pages        = {6146--6154},
  publisher    = {The American Chemical Society},
  series       = {Energy & Fuels},
  title        = {Intracavity Laser Absorption Spectroscopy Study of HCO Radicals during Methane to Hydrogen Conversion in Very Rich Flames},
  url          = {http://dx.doi.org/10.1021/acs.energyfuels.5b01497},
  volume       = {29},
  year         = {2015},
}