...
首页> 外文期刊>Combustion and Flame >Effect of fuel nozzle material properties on soot formation and temperature field in coflow laminar diffusion flames
【24h】

Effect of fuel nozzle material properties on soot formation and temperature field in coflow laminar diffusion flames

机译:燃料喷嘴材料特性对并流层流扩散火焰中烟尘形成和温度场的影响

获取原文
获取原文并翻译 | 示例
           

摘要

Laminar coflow diffusion flames are very sensitive to initial conditions and perturbations. Although coflow flames are 2-D, there has been a considerable effort for modeling these flames with detailed chemical kinetics and with skeletal kinetic mechanisms. These modeling efforts and comparisons among coflow burners of similar geometries require consistent and well-defined initial conditions. One of these is the properties of the material used for the fuel tube. The influence of the properties of the fuel tube on soot formation was noted by Kent and Wagner. They placed a small glass ring, 5 mm high, on the water-cooled metal tube to reduce the heat transfer rate. They noted that, at low fuel flow rates, a nonsmoking flame was transformed to a smoking one. They found that at higher fuel flow rates the effect of the glass ring is minimal. Although they did not provide detailed results and discussions, they noted up to a 100 K temperature increase on the centerline of the flame at 5 mm above the burner rim with the glass ring.
机译:层流同流扩散火焰对初始条件和扰动非常敏感。尽管同流火焰是二维的,但仍需要大量精力来使用详细的化学动力学和骨骼动力学机制对这些火焰进行建模。这些建模工作和相似几何形状的同流燃烧器之间的比较需要一致且定义明确的初始条件。其中之一是用于燃料管的材料的特性。肯特和瓦格纳指出了燃料管性能对烟灰形成的影响。他们在水冷金属管上放置了一个高5毫米的小玻璃环,以降低传热速率。他们指出,在低燃料流量下,不吸烟的火焰变成了吸烟的火焰。他们发现,在较高的燃料流量下,玻璃环的影响很小。尽管他们没有提供详细的结果和讨论,但他们指出,在带有玻璃环的燃烧器边缘上方5毫米处,火焰中心线上的温度升高了100K。

著录项

  • 来源
    《Combustion and Flame》 |2006年第2期|p.426-433|共8页
  • 作者单位

    Institute for Aerospace Studies, University of Toronto, 4925 Dufferin Street, Toronto, Ontario M3H 5T6, Canada;

  • 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 燃料与燃烧;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号