Influence of anode temperature on ignition performance of the IRIT4-2D iodine-fueled radio frequency ion thruster  

作　　者：Xinghua ZHANG Zhenhua ZHANG Shaoxia JIA Ting JIN Jinghua YANG Long LI Fangfang LIU Yong CAI Jian CAI 张兴华;张振华;贾少霞;金婷;杨景华;李龙;刘芳芳;蔡勇;蔡建(Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,People's Republic of China;Suzhou Nano-Space Dynamics Technology Co.Ltd,Suzhou 215000,People’s Republic of China)

机构地区：[1]Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,People's Republic of China [2]Suzhou Nano-Space Dynamics Technology Co.Ltd,Suzhou 215000,People’s Republic of China

出　　处：《Plasma Science and Technology》2022年第1期139-150,共12页等离子体科学和技术（英文版）

基　　金：financial support from National Natural Science Foundation of China(No.11805265);Key Laboratory of Micro-Satellites,Chinese Academy of Sciences(No.KFKT201903)is gratefully acknowledged。

摘　　要：This paper reports the ignition performance of the iodine-fueled radio frequency(RF)ion thruster(IRIT)at different anode temperaturesT_(a0).The experimental results show that the anode temperature plays important role on the ignition process of the IRIT.There were two characteristic temperatures related to the anode:the minimum ignition temperatureT_(i0)and the stable ignition temperatureT_(is),which were much lower than the pipeline temperature and the storage tank temperature.AtT_(a0)<T_(i0),it failed to discharge.WhenT_(i0)≤T_(a0)<T_(is),it was ignited with dramatical oscillations.AtT_(a0)≥T_(is),the discharge was stable in a large anode temperature range.The analysis showed that the different discharge phenomena at different anode temperatures were attributed to the change of iodine flow rate during the process of the iodine deposition-clogging and sublimation-clearing inside the thruster.The research helps improve the preheating design of the iodine-fueled electric thruster.

关 键 词：radio frequency ion thruster iodine propellant IGNITION DEPOSITION SUBLIMATION clog 

分 类 号：V439.1[航空宇航科学与技术—航空宇航推进理论与工程]