火箭推进2018，Vol.44Issue(3)：43-48,6.
N2O自增压贮箱的动态供应特性
Dynamic supply characteristics of N2O self-pressurization tank
摘要
Abstract
A mathematical model of N2O self-pressurization tank was built to study the dynamic sup-ply process, and the calculated tank pressure was in good agreement with the experimental results. For the dynamic operating characteristics of self-pressurization tank supplying the liquid medium, the simula-tion was carried out. The results show that the supply of the liquid propellant is more favorable than that of the gaseous propellant for maintaining the tank pressure and flow rate steadily under the same mass flow rate. Due to the influence of the evaporation endothermic reaction, the tank pressure usually decreases during the supply process. Heating the tank is beneficial to slow down the rate of pressure drop, but there are problems such as the delayed pressure response and the decreased heat exchange area. In addition, it is difficult to obtain a steady dynamic supply pressure.关键词
N2O自增压贮箱/动态特性/数学模型/仿真计算Key words
N2O self-pressurization tank/dynamic characteristic/mathematical model/simulating calculation分类
航空航天引用本文复制引用
陈鹏飞,赵晓慧,洪流,周立新..N2O自增压贮箱的动态供应特性[J].火箭推进,2018,44(3):43-48,6.基金项目
国防科技重点实验室基金项目(6142704040107) （6142704040107）
