Green Rocket Propulsion by Reaction of Al and Mg Powders and Water
Green Rocket Propulsion by Reaction of Al and Mg Powders and Water
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DOI：
10.2514/6.2004-4037
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发表时间：
2004-07
期刊：
影响因子：
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通讯作者：
T. F. Miller;John Herr
中科院分区：
文献类型：
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作者：
T. F. Miller;John Herr
研究了铝水和镁水作为水下推进器推进剂的效果。两种反应物体系的理论比冲都很高，反应产物（氧化铝、氧化镁和氢）对环境无害。这些系统作为“绿色”推进剂的吸引力先前已被评论，然而，没有对这些系统进行实际实验。本文描述了在压力和氧化剂-燃料比条件下，对镁-水和铝-水的线性燃烧室进行了测试，并采用了可用于实际火箭发动机的金属粉末进料系统。将非设计比冲的测量值与考虑两相损耗的理论预测值进行了比较。对液态水氧化剂可再生汽化的热通量进行了测量。也许最重要的是，对燃烧室中产物氧化物积累程度的观察。这些测量和观察用于确定这两种金属燃料系统作为实用绿色推进剂的有效性。
The efficacy of using aluminum-water and magnesium-water as propellants for underwater thruster applications has been investigated by the authors. The theoretical specific impulse for both reactant systems is high, and the products of reaction (alumina, magnesia, and hydrogen) are environmentally benign. The attractiveness of these systems as “green” propellants has been commented on previously, however, no practical experimentation with these systems has been made. The present work describes the testing of a linear combustor with magnesium-water and aluminum-water under conditions of pressure and oxidizer-fuel ratios and with a metal powder feed system that could be employed in actual rocket engines. Measurements of off-design specific impulse are compared with theoretical predictions that take into account two-phase losses. Measurements of heat fluxes available to vaporize regeneratively the liquid water oxidizer are presented as well. Perhaps of most importance, observations of the degree of product oxide accumulation in the combustor are presented. These measurements and observations are used to determine the effectiveness of these two metal fuel systems as practical green propellants.