TY - CONF
T1 - Characteristics of laminar premixed CH4/CO/air opposed-jet flames
AU - Wu, C. Y.
AU - Chao, Y. C.
AU - Chen, C. P.
AU - Ho, C. T.
AU - Chen, G. B.
AU - Cheng, T. S.
N1 - Funding Information:
We appreciate the National Center for High-performance Computing of Taiwan, ROC for providing the computing resources. In addition, the financial support by National Science Council, Taiwan R.O.C., through projects NSC93-2212-E-006-019, and 94-2212-E-006-004 are gratefully acknowledged.
Publisher Copyright:
© 2007 Combustion Institute. All Rights Reserved.
PY - 2007
Y1 - 2007
N2 - The characteristics of laminar premixed CH4/CO/air opposed-jet flames are experimentally and numerically investigated. The premixed flames are operated at a fixed stoichiometric condition with various fuel mixtures of CH4 and CO. The flame front positions of the opposed-jet fames are measured using direct photographs and CH∗ chemiluminescence images. The flame structures are calculated using the OPPDIF code coupled with multicomponent transport model and GRI-Mech 3.0 chemical kinetic mechanisms, while the PREMIX code is employed to investigate the laminar burning velocity. Results show that the measured and calculated flame front positions are in excellent agreement. The calculated flame structures suggest that the premixed CH4/CO/air flames can be categorized into CH4-like or CO-like flames, according to the spatial distribution of CO concentration. In addition, the calculated maximum laminar burning velocity of the premixed CH4/CO/air flames is found when the volumetric CH4 concentration is about 10% in fuel mixtures which also results in lowest CO2 production for the blended fuels studied.
AB - The characteristics of laminar premixed CH4/CO/air opposed-jet flames are experimentally and numerically investigated. The premixed flames are operated at a fixed stoichiometric condition with various fuel mixtures of CH4 and CO. The flame front positions of the opposed-jet fames are measured using direct photographs and CH∗ chemiluminescence images. The flame structures are calculated using the OPPDIF code coupled with multicomponent transport model and GRI-Mech 3.0 chemical kinetic mechanisms, while the PREMIX code is employed to investigate the laminar burning velocity. Results show that the measured and calculated flame front positions are in excellent agreement. The calculated flame structures suggest that the premixed CH4/CO/air flames can be categorized into CH4-like or CO-like flames, according to the spatial distribution of CO concentration. In addition, the calculated maximum laminar burning velocity of the premixed CH4/CO/air flames is found when the volumetric CH4 concentration is about 10% in fuel mixtures which also results in lowest CO2 production for the blended fuels studied.
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M3 - Paper
AN - SCOPUS:85126505172
T2 - 6th Asia-Pacific Conference on Combustion, ASPACC 2007
Y2 - 20 May 2007 through 23 May 2007
ER -