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Simultaneous particle size and 3D position measurements of pulverized coal flame with digital inline holography

机译:使用数字在线全息技术同时测量煤粉火焰的粒径和3D位置

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摘要

3D measurements of burning coal particles in the flame are challenging and of great interest. Digital inline holography is applied to perform 3D measurement of coal particle size and 3D position in a laboratory-scale pulverized coal flame. Pulsed laser beam illumination is used to record the coal particle hologram with clear holographic fringes in the presence of high refractive index gradient and strong turbulence. Over 30,000 coal particles have been reconstructed and analyzed. Results show that the particle size, 3D positions and particle number density distribution can be determined simultaneously. Digital inline holography presents to be a powerful tool in the 3D measurement of burning particles in a turbulent and reacting medium. (C) 2017 Elsevier Ltd. All rights reserved.
机译:火焰中燃烧煤颗粒的3D测量具有挑战性,并且引起了人们的极大兴趣。数字在线全息技术被用于在实验室规模的粉煤火焰中执行煤颗粒尺寸和3D位置的3D测量。在存在高折射率梯度和强湍流的情况下,脉冲激光束照明用于记录具有清晰全息条纹的煤颗粒全息图。超过30,000个煤颗粒已被重建和分析。结果表明,可以同时确定粒径,3D位置和颗粒数密度分布。数字在线全息术是在湍流和反应介质中燃烧颗粒的3D测量中的强大工具。 (C)2017 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Fuel》 |2017年第may1期|12-22|共11页
  • 作者单位

    Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China|Tech Univ Munich, Dept Elect & Comp Engn, D-80333 Munich, Germany;

    Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China;

    Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R 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

    Digital holography; Pulverized coal flame; 3D measurement; 3D position; Particle size;

    机译:数字全息;粉煤火焰;3D测量;3D位置;颗粒尺寸;

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