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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers >Effect of different triple swirlers on the performance of a triple swirler combustor
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Effect of different triple swirlers on the performance of a triple swirler combustor

机译：不同三重旋流器对三重旋流器燃烧室性能的影响

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摘要

Broadening the stable combustion range is particularly desirable for future aircraft engines. The triple swirler is considered to be a promising solution. Experiments were conducted to study different triple swirlers on the performance of a triple swirler combustor, which includes several technology innovations at different inlet airflow velocity (40-70 m/s), temperature (296 K, 373 K, and 473 K), and combustor overall fuel-air ratio with fixed atmospheric pressure. The total pressure loss coefficient increases linearly, while the flow drag coefficient decreases nonlinearly as the inlet airflow velocity increases from 40 m/s to 70 m/s. The flow drag of the combustor assembling counter-rotating swirlers for intermediate swirler and outer swirler is less than that of co-rotating swirlers at the same inlet airflow velocity. The ignition overall fuel-air ratio and lean blowout fuel-air ratio decrease along with inlet airflow velocity and temperature increasing on the whole. The triple swirler with swirl number combination labeling "1.5-1-0.8" has better combustion performance than the other one labeling "0.7-1 -1.5". At the temperature of 473 K, the lean blowout fuel-air ratio is almost below 0.005 for the triple swirler with swirl number combination labeling "1.5-1-0.8" at different inlet airflow velocity, and from this point, it has proved the feasibility of the design rules of triple swirler combustor in this paper.
机译：扩大稳定的燃烧范围对于未来的飞机发动机是特别期望的。三重旋流器被认为是有前途的解决方案。进行了实验研究不同的三重旋流器对三重旋流器燃烧器的性能，包括在不同的进气流速（40-70 m / s），温度（296 K，373 K和473 K）和固定大气压下燃烧室的总燃料空气比。随着入口气流速度从40 m / s增加到70 m / s，总压力损失系数线性增加，而流阻系数则非线性减少。在相同的入口气流速度下，用于中间旋流器和外部旋流器的燃烧器组装反向旋转旋流器的流动阻力要小于共同旋转旋流器的流动阻力。随着入口气流速度和温度的整体升高，点火总的燃料空气比和稀薄喷出的燃料空气比降低。标有“ 1.5-1-0.8”的旋流数组合的三重旋流器比另一个标有“ 0.7-1 -1.5”的旋流器具有更好的燃烧性能。在温度为473 K的情况下，在进气流速度不同的情况下，旋流数组合标记为“ 1.5-1-0.8”的三重旋流器的稀薄空燃比为0.005，从这一点证明了可行性。三重旋流燃烧器的设计规则

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  • 作者

    Guoyu Ding; Xiaomin He; Ziqiang Zhao; Yi Jin; Zhixin Zhu;

  • 作者单位

    Jiangsu Province Key Laboratory of Aerospace Power Systems, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China;

    Jiangsu Province Key Laboratory of Aerospace Power Systems, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China;

    Jiangsu Province Key Laboratory of Aerospace Power Systems, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China;

    Jiangsu Province Key Laboratory of Aerospace Power Systems, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China;

    Jiangsu Province Key Laboratory of Aerospace Power Systems, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P. R. China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Triple swirler; performance; triple swirler combustor; fuel-air ratio;

    机译：三重旋流器;性能;三重旋流燃烧器;燃料空气比;

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