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Thermal and heat transfer behaviors of an inverse diffusion flame with induced swirl

机译:具有诱导涡流的逆扩散火焰的传热和传热行为

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摘要

An experimental work was made to investigate the thermal and heat transfer behaviors of a multi-fuel-jet inverse diffusion flame (IDF) with induced swirl. Flame appearances, temperature fields and wall static pressures were compared between the swirling and non-swirling IDFs under identical air/fuel flow rates. Results show that either flame consists of a lower flame base and an upper flame torch where main combustion takes place. However, the main reaction zone in the swirling IDF and is closer to the burner exit and the flame length is much shorter than the non-swirling IDF. Both the radial wall static pressure profile and radial heat flux distribution of the swirling IDF are M-shaped at low nozzle-to-plate distances, and both are influenced by the swirl effect.
机译:进行了一项实验工作,以研究具有诱导涡流的多燃料喷射逆扩散火焰(IDF)的热和热传递行为。在相同的空气/燃料流量下,比较了旋流和非旋流IDF的火焰外观,温度场和壁静压。结果表明,任一火焰均由下部火焰基部和上部火焰炬组成,在该火焰中主燃烧发生。但是,旋转IDF中的主反应区更靠近燃烧器出口,火焰长度比非旋转IDF短得多。旋流IDF的径向壁静压力分布和径向热通量分布在喷嘴到板之间的距离较小时均为M形,并且都受旋流效应的影响。

著录项

  • 来源
    《Fuel》 |2013年第1期|212-219|共8页
  • 作者单位

    Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Horn, Hong Kong, China;

    Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Horn, Hong Kong, China;

    Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Horn, Hong Kong, China;

    Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Horn, Hong Kong, China;

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

    inverse diffusion flame; induced swirl; flame impingement; heat transfer;

    机译:逆扩散火焰诱导涡流火焰撞击传播热量;

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