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In this study, the laminar burning velocity of syngas fuel(H2/CO) and flame structure with various hydrogen contents were studied using both experimental measurements and detailed kinetic analysis. The laminar burning velocities were measured by the angle method of Bunsen flame configuration and the numerical calculations including chemical kinetic analysis were made using CHEMKIN Package with USC-Mech II. A wide range of syngas mixture compositions such as H2 : CO = 10 : 90, 25 : 75, 50 : 50, 75:25 and equivalence ratios from lean condition of 0.5 to rich condition of 5.0 have been considered. The experimental results of burning velocity were in good agreement with previous other research data and numerical simulation. Also, it was shown that the experimental measurements of laminar burning velocity linearly increased with the increment of H2 content although the burning velocity of hydrogen is faster than the carbon monoxide above 10 times. This phenomenon is attributed to the rapid production of hydrogen related radicals such as H radical at the early stage of com- bustion, which is confirmed the linear increase of radical concentrations on kinetic analysis. Particular concerns in this study are the characteristics of burning velocity and flame structure different from lean condition for rich condition. The decrease of OH radicals and double peaks are observed with H2 content in rich condition once H2 fraction exceeds over threshold.

han-guk yeonso hakoeji/han'gug yeonso haghoeji

A Study on the Laminar Burning Velocity and Flame Structure with H<sub>2</sub>Content in a Wide Range of Equivalence Ratio of Syngas(H<sub>2</sub>/CO)/Air Premixed Flames

A Study on the Laminar Burning Velocity and Flame Structure with H2Content in a Wide Range of Equivalence Ratio of Syngas(H2/CO)/Air Premixed Flames

A Study on the Laminar Burning Velocity and Flame Structure with H₂Content in a Wide Range of Equivalence Ratio of Syngas(H₂/CO)/Air Premixed Flames