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首页> 外文期刊>Journal of Energy Engineering >Comparative Evaluation of Extinction through Strain among Three Alcoholic Butanol Isomers in Non-Premixed Counterflow Flames
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Comparative Evaluation of Extinction through Strain among Three Alcoholic Butanol Isomers in Non-Premixed Counterflow Flames

机译：非预混逆流火焰中三种醇丁醇异构体通过应变消光的比较评估

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摘要

Butanol isomer diffusion flames were studied experimentally in a counterflow burner configuration with an emphasis on establishing a difference in extinction strain rate among three fuels with practically identical thermochemistry. An effect of molecular structure on the extinction strain rates of butanol isomers was observed and analyzed in terms of bond dissociation energies. The results indicate that although all isomers share essentially the same adiabatic flame temperature, n-butanol flames can sustain a consistently higher extinction strain rate than the flames of other isomers (isobutanol and .sec-butanol). Extinction strain rates of isobutanol and sec-butanol were equal, within experimental error. Numerical simulation of n-butanol diffusion flames produced results consistent with those measured experimentally and provided insight into the distribution of major species and combustion intermediates. Stable annular flames were observed for all three isomers as a temporary step before extinction.
机译：在逆流燃烧器配置中对丁醇异构体扩散火焰进行了实验研究，重点是在三种化学性质基本相同的燃料之间建立了消光应变速率的差异。观察和分析了分子结构对丁醇异构体的消光应变速率的影响，并根据键离解能进行了分析。结果表明，尽管所有异构体都具有基本相同的绝热火焰温度，但正丁醇火焰比其他异构体（异丁醇和仲丁醇）的火焰具有持续更高的消光应变率。在实验误差范围内，异丁醇和仲丁醇的消光应变速率相等。正丁醇扩散火焰的数值模拟得出的结果与实验测得的结果一致，并提供了对主要物质和燃烧中间体分布的了解。在灭绝之前，这三个异构体均观察到稳定的环形火焰。

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  • 来源
    《Journal of Energy Engineering》 |2014年第3期|A4014006.1-A4014006.5|共5页
  • 作者

    Constandinos M. Mitsingas; Dimitrios C. Kyritsis;

  • 作者单位

    Dept. of Mechanical Science and Engineering, Univ.of Illinois at Urbana-Champaign, 1206 W. Green St., Urbana, IL 61801;

    Dept. of Mechanical Engineering, Khalifa Univ. of Science, Technology, and Research, Al Saada St., Abu Dhabi 127788, UAE, and Dept. of Mechanical Science and Engineering, Univ. of Illinois at Urbana-Champaign, 1206 W. Green St., Urbana, IL 61801;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Biobutanol; Non-premixed flames; Biofuels; Extinction;

    机译：生物丁醇非预混火焰生物燃料;灭绝;

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