TY - JOUR
T1 - Intracavity Laser Absorption Spectroscopy Study of HCO Radicals during Methane to Hydrogen Conversion in Very Rich Flames
AU - Fomin, Alexey
AU - Zavlev, Tatyana
AU - Alekseev, Vladimir A.
AU - Konnov, Alexander A.
AU - Rahinov, Igor
AU - Cheskis, Sergey
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/9/17
Y1 - 2015/9/17
N2 - 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 + O2 + N2 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.
AB - 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 + O2 + N2 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.
UR - http://www.scopus.com/inward/record.url?scp=84941915816&partnerID=8YFLogxK
U2 - 10.1021/acs.energyfuels.5b01497
DO - 10.1021/acs.energyfuels.5b01497
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AN - SCOPUS:84941915816
SN - 0887-0624
VL - 29
SP - 6146
EP - 6154
JO - Energy & Fuels
JF - Energy & Fuels
IS - 9
ER -