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Experimental investigation of fuel regression rate in a HTPB based lab-scale hybrid rocket motor

机译：基于HTPB的实验室规模混合动力火箭发动机燃料回归率的实验研究

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摘要

The fuel regression rate is an important parameter in the design process of the hybrid rocket motor. Additives in the solid fuel may have influences on the fuel regression rate, which will affect the internal ballistics of the motor. A series of firing experiments have been conducted on lab-scale hybrid rocket motors with 98% hydrogen peroxide (H_2O_2) oxidizer and hydroxyl terminated polybutadiene (HTPB) based fuels in this paper. An innovative fuel regression rate analysis method is established to diminish the errors caused by start and tailing stages in a short time firing test. The effects of the metal Mg, Al, aromatic hydrocarbon anthracene (C_14H_10), and carbon black (C) on the fuel regression rate are investigated. The fuel regression rate formulas of different fuel components are Fitted according to the experiment data. The results indicate that the influence of C_14H_10 on the fuel regression rate of HTPB is not evident. However, the metal additives in the HTPB fuel can increase the fuel regression rate significantly.
机译：燃料回归率是混合火箭发动机设计过程中的重要参数。固体燃料中的添加剂可能会对燃料的降解率产生影响，这将影响电动机的内部弹道。本文对含98％过氧化氢（H_2O_2）氧化剂和羟基封端的聚丁二烯（HTPB）的燃料的实验室规模混合火箭发动机进行了一系列燃烧实验。建立了一种新颖的燃料回归率分析方法，以减少在短时点火测试中由起步阶段和尾随阶段引起的误差。研究了金属Mg，Al，芳烃蒽（C_14H_10）和炭黑（C）对燃料降解率的影响。根据实验数据拟合不同燃料成分的燃料回归率公式。结果表明，C_14H_10对HTPB燃料回归率的影响不明显。但是，HTPB燃料中的金属添加剂可以显着提高燃料的降解率。

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  • 来源
    《Acta astronautica》 |2014年第1期|95-100|共6页
  • 作者

    Xintian Li; Hui Tian; Nanjia Yu; Guobiao Cai;

  • 作者单位

    School of Astronautics, Beihang University, Beijing 100191, China;

    School of Astronautics, Beihang University, Beijing 100191, China;

    School of Astronautics, Beihang University, Beijing 100191, China;

    School of Astronautics, Beihang University, Beijing 100191, 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

    Fuel regression rate; Hydrogen peroxide; Metal additive; Hybrid rocket motor;

    机译：燃油回归率;过氧化氢金属添加剂;混合火箭发动机;

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