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首页> 外文期刊>Journal of Hazardous Materials >Experimental study on flames propagating through zirconium particle clouds
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Experimental study on flames propagating through zirconium particle clouds

机译：火焰在锆粒子云中传播的实验研究

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摘要

To reveal the mechanisms of flame propagation through the hardly volatile metal dust clouds clearly, the flame propagating through zirconium particle clouds has been examined experimentally. A high-speed video camera was used to record the propagation process of the flame. Combustion zone temperature was detected by a fine thermocouple. Based on the experimental results, structure of flame and combustion courses of zirconium particles were analyzed, the combustion propagation in zirconium dust was investigated, and the velocity and temperature characteristics of the combustion zone were also elucidated. The combustion zone propagating through zirconium particle clouds consists of luminous particles. Particle concentration plays an important role in the combustion zone propagation process. With the increase of zirconium particle concentration, the maximum temperature of the combustion zone increases at the lower concentration, takes a maximum value, and then decreases at the higher concentration. It is also found that the propagation velocity of the combustion zone has a linear relationship with its maximum temperature.
机译：为了清楚地揭示火焰在难挥发的金属尘埃云中传播的机理，已经对通过锆粒子云传播的火焰进行了实验研究。使用高速摄像机记录火焰的传播过程。通过精细的热电偶检测燃烧区温度。根据实验结果，分析了锆颗粒的火焰结构和燃烧过程，研究了锆粉在锆粉尘中的燃烧传播，并阐明了燃烧区的速度和温度特性。穿过锆粒子云传播的燃烧区由发光粒子组成。颗粒浓度在燃烧区传播过程中起着重要作用。随着锆颗粒浓度的增加，燃烧区的最高温度在较低浓度时升高，取最大值，然后在较高浓度时降低。还发现燃烧区的传播速度与其最高温度成线性关系。

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  • 来源
    《Journal of Hazardous Materials》 |2009年第1期|340-344|共5页
  • 作者

    Yi Yin; Jinhua Sun; Yibin Ding; Song Guo; Xuechao He;

  • 作者单位

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, 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);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    zirconium particle cloud; propagation mechanism; combustion process;

    机译：锆粒子云传播机制;燃烧过程;

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