Mechanism of combustion reactions in hydrogen-air premixed flames.

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概要

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• Simulation was performed by use of a chemical kinetic model built for flat hydrogen–air premixed flames in order to investigate the combustion mechanism taking place in flames through a wide range of equivalence ratio. The following results were obtained: the flame zone of the stoichiometric flame can be considered as having two different regions; the low-temperature region has, furthermore, three parts differing in reaction mechanism; since the reactions cannot proliferate hydrogen atoms by themselves in the low-temperature region, the acceleration of the reactions is necessarily governed by the hydrogen atoms diffused from the flame front; in the high-temperature region, the reactions produce an excess of hydrogen atoms which activate the reactions in this region or diffuse toward the low-temperature region; lean hydrogen flames possess smaller burning velocity than that of rich flames because the reactions in the low-temperature region have less reproducibility of hydrogen atoms.

• 公益社団法人 日本化学会の論文

著者

• Kunioshi Nilson

  Department Of System Engineering Okayama Prefectural University

• Fukutani Seishiro

  Department Of System Engineering Okayama Prefectural University

• Jinno Hiroshi

  Department of Industrial Chemistry, Faculty of Engineering, Kyoto University

• Jinno Hiroshi

  Department of Chemistry, Faculty of Science and Engineering

• Kunioshi Nilson

  Department of Industrial Chemistry, Faculty of Engineering, Kyoto University

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• Mechanism of combustion reactions in hydrogen-air premixed flames.

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