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[1]陈鹏飞,赵晓慧,洪流,等.N2O自增压贮箱的动态供应特性[J].火箭推进,2018,44(03):43-48.
　CHEN Pengfei,ZHAO Xiaohui,HONG Liu,et al.Dynamic supply characteristics of N2O self-pressurization tank[J].Journal of Rocket Propulsion,2018,44(03):43-48.
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N2O自增压贮箱的动态供应特性

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 44 期数: 2018年03期 页码: 43-48 栏目: 推进剂 出版日期: 2018-06-30
Title:
Dynamic supply characteristics of N2O self-pressurization tank
文章编号:
1672-9374(2018)03-0043-06
作者:
陈鹏飞1; 赵晓慧2; 洪流1; 周立新1
1.液体火箭发动机技术重点实验室,陕西 西安710100; 2.西安航天动力研究所,陕西 西安710100
Author(s):
CHEN Pengfei1;  ZHAO Xiaohui2;  HONG Liu1;  ZHOU Lixin1
1. Science and Technology on Liquid Propulsion Rocket Engine Laboratory, Xi'an 710100, China; 2. Xi'an Aerospace Propulsion Institute,Xi'an 710100, China
关键词:
N2O自增压贮箱;  动态特性;  数学模型;  仿真计算
Keywords:
N2O self-pressurization tank;  dynamic characteristic;  mathematical model;  simulating calculation
分类号:
V434.23-34
文献标志码:
A
摘要:
建立了氧化亚氮(N2O)贮箱自增压模型并完成了模型校验,获得的贮箱压力计算值与实验结果吻合良好。针对自增压贮箱供应液态介质时的动态工作特性开展了仿真计算,结果表明:在相同的质量流量下,供应液态推进剂比供应气态推进剂更有利于维持箱压和流量稳定; 受蒸发吸热作用的影响,自增压贮箱在供应过程中压力总是呈下降趋势。给贮箱加热有利于减缓其压力的下降速度,但存在压力响应滞后、换热面积减小等问题,不易获得稳定的动态供应压力。
Abstract:
A mathematical model of N2O self-pressurization tank was built to study the dynamic supply 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 simulation 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.

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备注/Memo

收稿日期:2017-01-03
基金项目:国防科技重点实验室基金项目(6142704040107)
作者简介:陈鹏飞(1984—),男,硕士,高级工程师,研究领域为液体火箭发动机基础理论研究

更新日期/Last Update: 2018-06-30