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首页> 外文期刊>Acta astronautica >Experimental study on the operation characteristics of aluminum powder fueled ramjet
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Experimental study on the operation characteristics of aluminum powder fueled ramjet

机译：铝粉燃料冲压发动机运行特性的实验研究

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摘要

A new powder fueled ramjet configuration is put forward based on the previous studies on ramjet, and an experiment investigation is conducted to study the working process of the engine. A series of tests are conducted to investigate the combustion efficiency of the engine by changing the ram air flow inlet interface position and the fluidization gas mass flow rate. It is found that the engine achieves 24 s self-sustaining combustion and worked stably during fire tests. In addition, the powder feed system provides aluminum fuel particles continuously and steadily during the tests, and the piston velocity can be used as a function of the fuel mass flow rate. Optimized ram air flow inlet interface position is 250 mm to the combustion chamber front end. Furthermore, as the mass flow rate of fluidization gas rises from 5 to 15 g/s, the combustion efficiency of the engine significantly increases. The best combustion efficiency reaches 73.05% on the condition that the ram air flow inlet interface position is 250 mm to the combustion chamber front end and the mass flow rate of fluidization gas is 15 g/s. (C) 2016 IAA. Published by Elsevier Ltd. All rights reserved.
机译：在以往对冲压发动机的研究基础上，提出了一种新的粉末燃料冲压发动机构型，并进行了实验研究以研究发动机的工作过程。通过更改冲压空气流入口接口位置和流化气体质量流量，进行了一系列测试以研究发动机的燃烧效率。结果发现，该发动机实现了24 s的自持燃烧，并在燃烧测试中稳定运行。此外，粉末进料系统在测试过程中连续稳定地提供铝燃料颗粒，并且活塞速度可以用作燃料质量流量的函数。优化的冲压空气流入口接口位置距离燃烧室前端250毫米。此外，随着流化气体的质量流量从5 g / s增加到15 g / s，发动机的燃烧效率显着提高。在冲压空气流入口接口位置距燃烧室前端250 mm，流化气体的质量流量为15 g / s的条件下，最佳燃烧效率达到73.05％。 （C）2016 IAA。由Elsevier Ltd.出版。保留所有权利。

著录项

  • 来源
    《Acta astronautica》 |2016年第12期|74-81|共8页
  • 作者

    Li Chao; Hu Chunbo; Xin Xin; Li Yue; Sun Haijun;

  • 作者单位

    Northwestern Polytech Univ, Internal Flow & Thermal Struct Lab, Sci & Technol Combust, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Internal Flow & Thermal Struct Lab, Sci & Technol Combust, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Internal Flow & Thermal Struct Lab, Sci & Technol Combust, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Internal Flow & Thermal Struct Lab, Sci & Technol Combust, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, Internal Flow & Thermal Struct Lab, Sci & Technol Combust, Xian 710072, Shaanxi, 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

    Metal fuel; Powder fueled ramjet; Fire tests; Self-sustaining combustion; Combustion efficiency;

    机译：金属燃料;粉末燃料冲压发动机;燃烧测试;自持燃烧;燃烧效率;

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