含硼富燃料推进剂的能量释放特性  

Energy releasing characteristics of boron-basedfuel-rich propellant

作　　者：张先瑞 王园园[2] 陈涛[1,2] 刘建红 王锐[1,2] 杨伯涵 肖金武[1,2] 庞爱民 ZHANG Xianrui;WANG Yuanyuan;CHEN Tao;LIU Jianhong;WANG Rui;YANG Bohan;XIAO Jinwu;PANG Aimin(Science and Technology on Aerospace Chemical Power Laboratory,Xiangyang 441003,China;Hubei Institute of Aerospace Chemical Technology,Xiangyang 441003,China)

机构地区：[1]航天化学动力技术重点实验室,襄阳441003 [2]湖北航天化学技术研究所,襄阳441003

出　　处：《固体火箭技术》2020年第6期701-706,共6页Journal of Solid Rocket Technology

摘　　要：为指导含硼富燃料推进剂配方设计,以掌握含硼富燃料推进剂能量在一次和二次燃烧过程中的分配规律为目的,对可能作为表征含硼富燃料推进剂两次燃烧过程的能量释放特性的性能参数进行分析和选择,采用三个效率参数ηc1、ηc2和ηB表征其一次燃烧的能量释放效率、二次燃烧的能量释放效率和硼的燃烧效率,并采用这三个参数评价了硼粉含量、团聚硼粉及LiF包覆硼粉对含硼富燃料推进剂能量释放特性的影响。结果表明,采用LiF包覆硼粉可以显著提高ηc1、ηc2和ηB2,而提高硼粉含量、增大团聚硼粉粒度会明显降低ηc1、ηc2和ηB。ηB与ηc2存在强正相关关系,ηc1与ηB存在弱正相关关系,说明含硼富燃料推进剂中硼粉燃烧效率的大小决定了二次能量释放效率的高低,同时一次燃烧性能的改善将有利于二次燃烧性能的提高。In order to guide the formulation design of the boron-based fuel-rich propellant,the performance parameters,that may be used to characterize the energy release characteristics of the boron-based fuel-rich propellant during the primary and secondary combustion processes,were analyzed and selected.Three parameters ηc1、ηc2 and ηB were brought forward to represent its energy releasing efficiency during the primary combustion process respectively,second combustion process respectively and the combustion efficiency of boron.The three parameters are used to evaluate the influence of the content of boron powder,the size of agglomerated boron powder and LiF coated boron powder on the energy releasing characteristics of boron-based fuel-rich propellant.The results indicate that ηc1、ηc2 and ηB are heightened prominently with the adoption of LiF coated boron powder,whereas decrease obviously with the increasing of the content of boron powder or the size of agglomerated boron powder.There is a strong positive correlation between ηB and ηc2,and a weak positive correlation between ηB and ηc2,indicating that the combustion efficiency of boron power in the boron-based fuel-rich propellant determines the secondary energy release efficiency.At the same time,the improvement of primary combustion properties lead to the enhancement of after-burning properties of propellant.

关 键 词：含硼富燃料推进剂 能量释放特性 燃烧效率 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]