火箭推进2018，Vol.44Issue(2)：39-45,94,8.
一种HAN基单元推进剂及催化分解性能研究
Investigation of a novel HAN-based monopropellant and its catalytic decomposition performance
鲍世国 1公绪滨 1陈艺 1申连华 1方涛1
作者信息
- 1. 北京航天试验技术研究所航天绿色推进剂研究与应用北京市重点实验室,北京100074
- 折叠
摘要
Abstract
A novel advanced HAN-based monopropellant is introduced and its catalytic decomposi-tion performances tested in 5 N thruster is investigated.The catalytic activity and theoretical combustion temperature of the monopropellant are estimated by droplet test and thermodynamic calculations separate-ly.Several performances,such as starting performance,catalytic decomposition activity,stability of steady state and pulse,are investigated by starting at 120 ℃,and in 10 s and 20 s steady state firings,1 200 s long steady state firing and multi-pulse firing.The propellant damage to the catalyst is evaluated.The evaluation result indicates that the novel HAN-based monopropellant has high catalytic decomposition ac-tivity and suitable theoretical combustion temperature,can start at preheat temperature of 120 ℃,and ac-complish series of steady state and pulse firings.The accumulated firing time is longer than 2 000 s.The maximum of combustion temperature is lower than 1 150 ℃.After hot firing test,no cavity is observed in the catalyst bed,the integrated catalyst granules are obtained and the total mass loss rate of catalyst is less than 5%.Thus,excellent catalytic decomposition and combustion performances of the novel HAN-based monopropellant,as well as its compatibility with catalyst were proven in the test.关键词
硝酸羟铵/单组元推进剂/5N发动机/地面热试车/催化分解活性Key words
hydroxylammonium nitrate/monopropellant/5 N thruster/ground test/catalytic decom-position activity分类
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鲍世国,公绪滨,陈艺,申连华,方涛..一种HAN基单元推进剂及催化分解性能研究[J].火箭推进,2018,44(2):39-45,94,8.
