中国空间科学技术2023，Vol.43Issue(6)：74-82,9.DOI:10.16708/j.cnki.1000-758X.2023.0086
多模式离子液体推进剂的直流电点火特性研究
DC electrical ignition characteristic of multimode ionic liquid propellant
摘要
Abstract
DC electrical ignition is expected to replace the traditional catalytic combustion for achieving a non-catalytic quick start of ionic liquid propellant due to its capability of rapid ignition.Direct current ignition experiments under atmospheric conditions were carried out for a new multimode hydroxylamine nitrate(HAN)based ionic liquid propellant.First,the electrical response characteristic of sacrificial electrodes(copper and aluminum)and inert electrodes(stainless steel,platinum,silver,tungsten,molybdenum,and graphite)were tested under different input voltages.The corresponding minimum ignition voltages for different electrode materials were also obtained.Among them,molybdenum and copper electrodes can employ an input voltage of 80 V to ignite the propellant,with a critical electrical response time of less than 1 s.Furthermore,the mechanism of electrochemical reactions was demonstrated when copper was used as a sacrificial electrode by testing various combinations of anode and cathode materials.Finally,high-speed photography was employed to capture the formation and evolution of bubbles during the electrical ignition.It is found that more bubbles were generated on the surface of the anode.After testing the ignition of imidazole-based ionic liquid propellants using eight electrode materials,it can be concluded that the gaseous products were mainly generated near the anode,providing theoretical support for the design of ignition of ionic liquid.关键词
离子液体推进剂/直流电点火/电极材料/电压响应曲线/电解特性Key words
ionic liquid propellant/DC electrical ignition/electrode material/voltage response curve/electrical characteristic分类
航空航天引用本文复制引用
陈旭灿,卓建坤,王尊,甘辛,唐勇,姚兆普,李水清,姚强..多模式离子液体推进剂的直流电点火特性研究[J].中国空间科学技术,2023,43(6):74-82,9.基金项目
青年科学基金(52106129) （52106129）
清华大学专项(20234810057) （20234810057）
航天五院CAST创新基金 （）
