Characteristics of laminar premixed CH4/CO/air opposed-jet flames

C. Y. Wu, Y. C. Chao, C. P. Chen, C. T. Ho, G. B. Chen, T. S. Cheng

Research output: Contribution to conferencePaperpeer-review


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.

Original languageEnglish
Publication statusPublished - 2007 Jan 1
Event6th Asia-Pacific Conference on Combustion, ASPACC 2007 - Nagoya, Japan
Duration: 2007 May 202007 May 23


Conference6th Asia-Pacific Conference on Combustion, ASPACC 2007

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Condensed Matter Physics


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