A review on hydroxylammonium nitrate (HAN ... - ScienceDirect
网页2022年7月1日 · For LP1846, the burning rate became pressure independent from pressures greater than 25 and 60 MPa in a 1.8 × 1 mm and 4 mm burner, respectively. Surface tension and gravity are the important forces in determining the burning rate.
Successful development of HAN based green propellant
网页2021年9月1日 · In the 1980s, the US Army launched a project that used HAN as a liquid gun propellant (LP1845), which was an aqueous solution composed of HAN, TEAN (tri-Ethanolammonium Nitrate) and water. 1, 2 LP1846, a slightly different composition than LP1845 was developed with 60 wt% HAN, 20 wt% TEAN, and 20 wt% water.
网页To date, though, LP1846, LP1845 and LP1898 are the most closely studied HAN-based formulations and have the largest body of data available. Therefore, the discussion herein will use LP1846, LP1845 and LP1898 as examples to illustrate the advantages of HAN-based monopropellants. Benefits Over State-of-Art …
网页LP1846 Liquid Gun Propellant is under development by the U.S. Army as a possible substitute for solid gun propellants. Available toxicity data on liquid gun propellant formulations and/or their major components, indicate toxicities in exposed rats, guinea pigs, rabbits and miniature swine.
液体推进剂LP1846点火的分歧分析 - 百度学术
网页提出了一种新的液体推进剂点火判据的分析方法──分歧分析法.根据LP1846挂滴实验提出了点火模型,模型中考虑了化学反应,热辐射对能量的贡献,给出了能量方程及浓度变化方程.文中认为点火是一种突变现象,应用分歧理论求出了相应的点火判据.通过对点火判据的 ...
网页SRI International assessed the ability of LP1846 to induce chromosomal aberrations (CA) in Chinese hamster ovary (CHO) cells both in the presence and absence of rat S-9 metabolic activation enzymes (MA). In the definitive studies in the absence of MA, CHO cells exposed to LP1846 at concentrations of 62.5, 125.0 and 250.0
网页ignition properties of the LP1846 single droplet were observed at different electrical heating speeds. The results show that when the LP1846 droplet is electrified, it mainly goes through an evaporization process, a periodic expan-sion and contraction process, a stronger thermal decom-position process, and an ignition and combustion process.
Development of HAN-based Liquid Propellant Thruster
网页2004年9月30日 · The purpose of this study is to apply HAN based liquid propellant (LP1846) to mono propellant thruster. Compared to the hydrazine that is used in conventional mono propellant thruster, HAN based...
Study on electrical ignition and micro-explosion properties of …
网页2010年1月12日 · In order to study the electrical ignition characteristics of hydroxylammonium nitrate (HAN)-based liquid propellant, an experimental device for the electrical heating ignition of a liquid propellant droplet was designed. By using a high speed camera system, the ignition properties of the LP1846 single droplet were observed at …
网页HAN基凝胶推进剂具有能量较高和产气量大的特点,并且通过改变水的含量可调节推进剂的能量和燃速。 年至今,研究人员已设计出多种基固体推2005 HAN进剂配方,通过对配比的改进和功能组分的引入使推进剂的氧燃比达到最优,推进剂对电压的响应能力和/ 燃烧性能因此获得提高,此外其电刺激可控制燃烧的特性在可控推进技术领域展现出应用前景[7]。 目前,HAN基液体推进剂在发生热催化分解时易造成催化剂床失活,HAN基凝胶推进剂点火存在困难,而且关 …
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