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Factors Affecting the Primary Combustion Products of Boron-Based Fuel-Rich Propellants

机译:影响基于硼的富燃料推进剂初级燃烧产物的因素

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摘要

Boron-based fuel-rich propellants with different formulation were prepared, and the condensed-phase products under different chamber pressures were collected in this study. The composition of boride (elemental boron, boron oxide, boron carbide, and boron nitride) in the condensed-phase products was measured by chemical analysis and the particle size distribution was determined using a laser particle size analyzer. Moreover, the burning rate and combustion temperature of the propellants were measured using a strand burner. The experimental results show that both the propellant burning rate and combustion temperature played an important role in the production of boride. There might be large amounts of boron carbide in the condensed-phase products which appear to have a negative effect on the combustion efficiency of the propellants studied in this work. The production of boron carbide could be reduced and combustion efficiency was improved by lowering the combustion temperature while increasing the burning rate. This study also shows that reducing the chamber pressure also causes a decrease in production of boron carbide.
机译:制备了不同配方的硼基富燃料推进剂,并收集了不同腔室压力下的冷凝相产物。通过化学分析测量缩合相产物中的硼化物(元素硼,氧化硼,碳化硼和氮化硼)的组成,并使用激光粒度分析仪确定粒度分布。此外,使用线束燃烧器测量推进剂的燃烧速率和燃烧温度。实验结果表明,推进剂的燃烧速率和燃烧温度在硼化物的产生中起着重要作用。冷凝相产物中可能存在大量碳化硼,这似乎对这项工作中研究的推进剂的燃烧效率具有负面影响。通过降低燃烧温度,同时提高燃烧速率,可以减少碳化硼的产生并提高燃烧效率。这项研究还表明,降低腔室压力还会导致碳化硼产量的下降。

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  • 来源
    《Journal of propulsion and power》 |2017年第2期|333-337|共5页
  • 作者单位

    Northwestern Polytechnical University, 710072 Xi'an, People's Republic of China;

    Northwestern Polytechnical University, 710072 Xi'an, People's Republic of China;

    Northwestern Polytechnical University, 710072 Xi'an, People's Republic of China;

    Northwestern Polytechnical University, 710072 Xi'an, People's Republic of China;

    Northwestern Polytechnical University, 710072 Xi'an, People's Republic of China;

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