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BURNING BEHAVIOR OF SOLID PROPELLANTS AT HIGH PRESSURE

机译:高压下固体推进剂的燃烧行为

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摘要

In this article, the method of the constant volume burner was used to measure the solid propellant burning rate under high pressure. The burning rate formula and the heat loss rate equation of the constant volume burner method were derived, and the effects of four factors (pressure increasing rate, burning time, ignition, and burning rate) on the heat loss of the constant volume burner during operation were carried out. Furthermore, the testing reproducibiUty on burning rate was analyzed. It was shown that sample size precision, moles per unit mass of propellant, and heat loss were the main factors for the accuracy of the constant volume burner method. The shorter the burning time, the faster the pressure increasing rate and the burning rate; the less the heat loss, the appropriate ignition way was to reduce heat loss ignition. Moreover, for both various burning rates ofpropellants, the parallel error of the test results obtained by the method was low, and the reproducibility was high. The burning rates measured by such a method showed a strong correlation to the burning rate.
机译:本文采用恒容燃烧器的方法来测量高压下固体推进剂的燃烧速率。推导了等容燃烧器方法的燃烧率公式和热损失率方程式,并研究了压力增加率,燃烧时间,点火和燃烧率四个因素对等容燃烧器运行过程中热损失的影响。被执行。此外,分析了燃烧速率的测试再现性。结果表明,样品体积的精确度,每单位质量推进剂的摩尔数和热损失是定容燃烧器方法精度的主要因素。燃烧时间越短,升压速率和燃烧速率越快;热损失越少,适当的点火方式就是减少热损失点火。而且,对于两种不同的推进剂燃烧速率,通过该方法获得的测试结果的平行误差均较低,并且再现性较高。通过这种方法测量的燃烧速率显示出与燃烧速率的强烈相关性。

著录项

  • 来源
    《Combustion Science and Technology》 |2014年第12期|1858-1888|共31页
  • 作者单位

    Science and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University, Xi'an, P. R. China,National Key Laboratory of Combustion, Flow and Thermo-Structure, Northwestern Polytechnical University, Xi'an 710072, China;

    Science and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University, Xi'an, P. R. China;

    Science and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University, Xi'an, P. R. China;

    Science and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University, Xi'an, P. R. China;

    Science and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University, Xi'an, P. R. China;

    Science and Technology on Combustion Internal Flow and Thermal-Structure Laboratory, Northwestern Polytechnical University, Xi'an, P. R. China;

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

    Burning rate characteristics; Constant volume burner method; Heat loss; High pressure; Measurement accuracy; Reproducibility;

    机译:燃烧速率特性;等体积燃烧器方法;热损失;高压力;测量精度重现性;

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