论文部分内容阅读
为了满足静止轨道卫星及中低轨道卫星降低重量、延长寿命的需要,北京控制工程研究所近年来开展了电弧加热发动机的研究工作,目前正在进行1kW级肼电弧加热发动机工程样机的研制。介绍了1kW级肼电弧加热发动机工程样机研制工作的进展情况。该项研制工作的目标是:完成电弧加热发动机的设计、加工和500h寿命试验。预期发动机功耗为1kW左右,比冲为4.5～5.5N.s/g,推力为75～150mN。目前已经完成了第一轮的发动机设计、加工和性能测试工作。出于安全性的考虑,目前的测试暂时是用N2和NH3的混合气体模拟肼进行的,测试获得了发动机的比冲、推力、效率等数据。在模拟肼的流量为18～30mg时,发动机的推力为100～150mN,比冲在5N.s/g左右,满足设计指标要求。预期采用单组元肼作为推进剂后,比冲将有所提高。
In order to meet the needs of geostationary orbit satellites and low and medium orbit satellites to reduce their weight and prolong their life expectancy, Beijing Institute of Control Engineering has carried out research on arc-heated engines in recent years and is currently developing a 1kW hydrazine arc-heated engine engineering prototype. The development of 1kW hydrazine arc heating engine engineering prototype was introduced. The goal of the research and development work is to complete the design, processing and 500h life test of arc heating engine. Expected engine power consumption is about 1kW, specific impulse 4.5 ~ 5.5N.s / g, thrust 75 ~ 150mN. Has completed the first round of engine design, processing and performance testing. For safety reasons, the current test is to use a mixed gas of N2 and NH3 to simulate hydrazine temporarily. The test obtains the engine specific impulse, thrust, efficiency and other data. Hydrazine in the simulation of the flow of 18 ~ 30mg, the engine thrust of 100 ~ 150mN, specific impulse at 5N.s / g or so, to meet the design requirements. Expected to use a single hydrazine as a propellant, the specific impulse will be increased.