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首页> 外文期刊>International journal of hydrogen energy >Experimental study of flammability limits of oxy-methane mixture and calculation based on thermal theory
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Experimental study of flammability limits of oxy-methane mixture and calculation based on thermal theory

机译：甲烷混合气可燃极限的实验研究及热理论计算

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摘要

The flammability limits of CH_4/CCVO_2 were studied using theory calculations and experimental investigation. A calculation model was re-deduced based on thermal theory. In this model, the chemical effects of CO_2 on flammability limits are concerned. Results show that the chemical effects of CO_2 decrease the upper flammability limits (UFL) of mixtures, while have little effect on the lower flammability limits (LFL). Experimental measurements were performed using a cylinder reactor. The measurements of the LFL of CH_4/O_2/CO_2 increase from 5% to 8.25% with the increase of CO_2 concentration, and the UFL of mixture CH_4/O_2/CO_2 decrease from 61% to 8.25% accordingly. The model predicted the LFL very well, but the calculated values are an average 10.7% higher than the measurements at the UFL points. The differences between the predictions and measurements are mainly due to the two assumptions of this model.
机译：利用理论计算和实验研究方法研究了CH_4 / CCVO_2的可燃极限。基于热理论重新推导了计算模型。在该模型中，考虑了CO_2对可燃性极限的化学作用。结果表明，CO_2的化学作用降低了混合物的易燃性上限（UFL），而对下易燃性极限（LFL）几乎没有影响。使用圆筒反应器进行实验测量。随着CO_2浓度的增加，CH_4 / O_2 / CO_2的LFL值从5％增加到8.25％，混合物CH_4 / O_2 / CO_2的UFL值从61％减少到8.25％。该模型对LFL的预测非常好，但计算值比UFL点的测量值平均高10.7％。预测和度量之间的差异主要是由于该模型的两个假设。

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  • 来源
    《International journal of hydrogen energy》 |2014年第17期|9527-9533|共7页
  • 作者

    Xianzhong Hu; Qingbo Yu; Nan Sun; Qin Qin;

  • 作者单位

    School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110819, PR China;

    School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110819, PR China,P.O. Box 345, Northeastern University, No. 11, Lane 3, Wenhua Road, Heping District, Shenyang, Liaoning, PR China;

    School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110819, PR China;

    School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110819, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Flammability limits; Thermal theory; Carbon dioxide; Chemical effect;

    机译：可燃性限值;热理论;二氧化碳;化学作用;

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