Analysis of Porosity and Preheating Temperature on the Decomposition and Combustion Characteristics within 5 N Ammonium Dinitramide(ADN)-based Monopropellant Thruster  

作　　者：ZHANG Tao WANG Fengshan CHEN Jun 

机构地区：[1]Beijing Institute of Control Engineering,Beijing 100190,China [2]Beijing Engineering Research Center of Efficient and Green Aerospace Propulsion Technology,Beijing 100190,China

出　　处：《Journal of Thermal Science》2020年第1期81-89,共9页热科学学报（英文版）

基　　金：supported by the Beijing Natural Science Foundation ( Grant No. 3184064)

摘　　要：In this study,the effects of porosity of the fore-catalytic bed and after-catalytic bed and preheat temperature on the decomposition and combustion characteristics of a 5N ammonium dinitramide(ADN)-based thruster were numerically investigated in terms of the distribution of components,temperature,and pressure.The results indicated that the porosity of the fore-catalytic bed and preheating temperature significantly affected the decomposition and combustion characteristics.The porosity of the fore-catalytic bed was optimized,and the thrust performance was demonstrated to improve with increasing of porosity of the after-catalytic bed and pre-heating temperature.The results were favorable for the investigation of decomposition and combustion characteristics and could also be beneficial to the design and manufacture of different types of ADN-based thrusters.In this study, the effects of porosity of the fore-catalytic bed and after-catalytic bed and preheat temperature on the decomposition and combustion characteristics of a 5 N ammonium dinitramide(ADN)-based thruster were numerically investigated in terms of the distribution of components, temperature, and pressure. The results indicated that the porosity of the fore-catalytic bed and preheating temperature significantly affected the decomposition and combustion characteristics. The porosity of the fore-catalytic bed was optimized, and the thrust performance was demonstrated to improve with increasing of porosity of the after-catalytic bed and pre-heating temperature. The results were favorable for the investigation of decomposition and combustion characteristics and could also be beneficial to the design and manufacture of different types of ADN-based thrusters.

关 键 词：POROSITY preheating temperature decomposition and combustion characteristics ammonium dinitramide MONOPROPELLANT 

分 类 号：V43[航空宇航科学与技术—航空宇航推进理论与工程]