Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
Carlit Holdings Co., Ltd.
Carlit Holdings Co., Ltd.
Carlit Holdings Co., Ltd.
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) : The Graduate University for Advanced Studies (SOKENDAI)
出版者
宇宙航空研究開発機構(JAXA)
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構研究開発報告: 高エネルギー物質研究会: 平成29年度研究成果報告書
雑誌名(英)
JAXA Research and Development Report: Technical Report of The Research Activity for High Energy Materials (2017)
Ammonium dinitramide-based energetic ionic liquid propellant (ADN-based EILP) is studied as low-toxic and high performance monopropellant instead of hydrazine. It is made by mixing three solid powders of ADN, monomethylamine nitrate, and urea. The theoretical specific impulse is 1.1 times higher than that of hydrazine and the density is 1.5 times higher at a composition of ADN/MMAN/urea=40/40/20 wt.%. In the viewpoints of the effect of the viscosity to the propellant feed pressure and weight of the tank and atomization in the chamber of a thruster, there are some problems for application to the thruster due to the high viscosity. We focus the capillary tube has relatively high pressure drop in the propellant feed system. The objective of this paper is to confirm the realistic design of the capillary which prevent a flashback to the propellant tank. According to results of strand burning tests with SUS cylinder imitating capillary tube, it is deduced that the flashback can be prevented in the capillary tube after steady combustion of the thruster in case of capillary tube diameter of no more than 3mm and combustion pressure of 1MPa. Realistic design of capillary tube is confirmed in range of the diameter, around 1 to 2 mm, in the consideration that a total pressure drop of capillary tube and injector is restricted to be 10-30% of combustion pressure for pressure oscillation of combustion chamber.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
ADN 系高エネルギーイオン液体のキャピラリーチューブ内における消炎
AA1730012006.pdf
(1.63MB)
