HTPE固体推进剂点火能量和燃烧特性的实验研究
Study on the Experiment of Ignition Energy and Combustion Characteristics of HTPE Solid Propellants
李泽旭 1苑继飞 2刘建忠 1孙志昊 1赵昱 3杨洪涛3
作者信息
- 1. 浙江大学能源工程学院,浙江 杭州 310013
- 2. 北京机电工程总体设计部,北京 100143
- 3. 西安近代化学研究所,陕西西安 710065
- 折叠
摘要
利用CO2激光点火燃烧试验系统研究了HTPE固体推进剂的点火能量和燃烧特性,分析了压力、气氛、初始温度(-50～70℃)和燃速调节剂对HTPE固体推进剂燃速、火焰形态、燃烧温度和最小点火能的影响.结果表明,相对于端羟基聚丁二烯(HTPB)固体推进剂,HTPE固体推进剂的火焰强度、燃速、燃烧温度较低;温度、压力和氧气含量的增加可提高HTPE固体推进剂的燃烧强度并降低其最小点火能量,在-50℃环境下,3种HTPE固体推进剂(HTPE_O、HTPE_Ca、HTPE_Sr)的最小点火能量分别为0.738、1.038和1.862J,低温初始环境能够显著增大最小点火能;碳酸钙和碳酸锶对HTPE固体推进剂的燃速具有抑制作用.
Abstract
The ignition energy and combustion characteristics of HTPE solid propellants were investigated by CO2 laser ignition and combustion test system.The effects of pressure,atmosphere,initial temperature(-50-70℃)and burning rate regula-tor on the burning rate,flame morphology,combustion temperature and minimum ignition energy of HTPE solid propellants were analyzed.The results show that HTPE solid propellant has lower flame intensity,burning rate,and combustion tempera-ture than hydroxyl-terminated polybutadiene(HTPB)solid propellant.The increase of temperature,pressure and oxygen con-tent can increase the combustion intensity and decrease the minimum ignition energy of HTPE solid propellant.The minimum ig-nition energy of the three HTPE solid propellants(HTPE_0,HTPE_Ca,HTPE_Sr)is0.738,1.038 and 1.862Jat-50℃,re-spectively.The low temperature initial environment can significantly increase the minimum ignition energy.The calcium car-bonate and strontium carbonate can inhibit the burning rate of HTPE solid propellant.
关键词
物理化学/HTPE固体推进剂/燃速调节剂/点火能/燃烧特性/CO2激光点火Key words
physical chemistry/HTPE solid propellant/burning rate regulator/ignition energy/combustion characteristics/CO2 laser ignition引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据