Numerical simulation for the decomposition of DT-3 in a monopropellant thruster

Comparative Study on the Damage Effects in the Deflagration Process of Typical Liquid Propellants

“…DT-3 is a high-performance monopropellant developed in China in the 1980s. It is the first practical use of low-freezing point propellant in the world, being composed of hydrazine, hydrazine nitrate and water [6]. The metallized gelled methylhydrazine is developed on basis of methylhydrazine (MMH) with a certain amount of gelling agents and solid powders [7,8].…”

“…Wu [11] verified the feasibility of using near-infrared spectroscopy to quickly detect the ingredients and corresponding contents of DT-3. A comprehensive decomposition mechanism of DT-3 was concluded by Gao [6] by discussing the influences of mass flow rate, preheating temperature and the size of catalytic ingredients on the adjustment of DT-3 thrust and start-up process. Mallory [12] proposed and compared the different spray behaviors of MMH gelled propellant under different jet velocity conditions.…”

Study on the Flame Acceleration and Transition from Deflagration to Detonation of N2O/C2H4/CO2

“…For decades the liquid propellants used for attitude and orbit control of satellites mainly include hydrazine, monomethylhydrazine (MMH), unsymmetrical dimethyl hydrazine (UDMH), DT-3, and the corresponding oxidant N 2 O 4 , which are a long term storable, have a long history of space flight, and are widely used in single and dual component propulsion systems. However, they also have obvious disadvantages, such as carcinogenic, strong corrosiveness, high costs, and complex safety handling devices [1][2][3]. Above all, as a consequence of high toxicity, they have been added to the candidate list of substances of very high concern (SVHC) in the context of EU's REACH (Europe's Registration Evaluation Authorization and Restriction of Chemicals) regulations.…”