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首页> 外文会议>1st International conference on green propellant for space propulsion >DECOMPOSITION OF DIFFERENT MONOPROPELLANTS AT LABORATORY LEVEL METHODOLOGY, EXPERIMENTAL RESULTS AND PERFORMANCE CALCULATIONS. APPLICATION TO HAN BASED PROPELLANTS AND H_2O_2
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DECOMPOSITION OF DIFFERENT MONOPROPELLANTS AT LABORATORY LEVEL METHODOLOGY, EXPERIMENTAL RESULTS AND PERFORMANCE CALCULATIONS. APPLICATION TO HAN BASED PROPELLANTS AND H_2O_2

机译：在实验室水平方法学，实验结果和性能计算中对不同单体推进剂的分解。在基于汉族的推进剂和H_2O_2中的应用

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Several platinum, rhodium or palladium supported catalysts have been prepared focusing particularly on the thermal stability in oxidizing atmosphere; this stability has been improved by adding doping elements to the support. The catalytic activity has been determined in a laboratory batch reactor and from thermal analysis. The catalytic tests using HAN-TEAN-H_2O mixtures led to lower pressure increases than the calculated values. Without the presence of a catalyst, the thermal decomposition reaction started at 115 ℃, leading to the formation of gaseous products and condensed polymerization products. In the presence of the best catalyst, the onset of the decomposition is lowered to about 70 ℃.rnIt can be concluded that the presence of CH_2-CH_2 fragments in the fuel part of the monopropellant could be an impediment to a full decomposition into gaseous products. The replacement of TEAN by urea or glycine led to blended monopropellants displaying poorer catalytic decomposition at low temperatures. Binary HAN-water mixture gave results similar to the decomposition of propellant containing TEAN. The comparison of different propellant components was made on the basis calculated adiabatic temperature and specific impulse. The more energetic oxidizer is HNF.
机译：已经制备了几种铂，铑或钯负载的催化剂，特别着重于在氧化气氛中的热稳定性。通过向载体中添加掺杂元素，提高了稳定性。催化活性已经在实验室间歇反应器中和通过热分析确定。使用HAN-TEAN-H_2O混合物进行的催化测试导致压力升高低于计算值。在没有催化剂存在的情况下，热分解反应在115℃开始，导致形成气态产物和缩聚产物。在最佳催化剂的存在下，分解的起始温度降低到约70℃。可以得出结论，单推进剂的燃料部分中CH_2-CH_2碎片的存在可能会阻碍其完全分解为气态产物。用尿素或甘氨酸替代TEAN导致混合的单推进剂在低温下显示出较差的催化分解。 HAN和水的二元混合物给出的结果类似于含有TEAN的推进剂的分解。在计算的绝热温度和比冲的基础上，对不同的推进剂成分进行了比较。能量更高的氧化剂是HNF。

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