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Experimental study on energy dissipation in a 1 kW arcjet thruster | |
Huang HJ(黄河激); Pan WX(潘文霞); Wu CK(吴承康) | |
Source Publication | 13th Asian Congress of Fluid Mechanics.Dhaka, Bangladesh.2010-12-17~2010-12-21. |
2011-01-12 | |
Conference Name | 13th Asian Congress of Fluid Mechanics |
Conference Date | 2010-12-17~2010-12-21 |
Conference Place | Dhaka, Bangladesh |
Abstract | As a simple and reliable propulsion system, arcjet thrusters have been used in multiple satellite missions. In order to improve the efficiency of arcjet thrusters, energy dissipation study was carried out in a 1 kW arcjet thruster with pure N2, H2-N2 and H2 as the propellant. Using a 698 nm interference filter, thermal radiation was isolated from arc and plume emissions and the internal nozzle temperature was obtained by converting the thermal radiation signals. Results show that the addition of hydrogen leads to higher nozzle temperature, which is the determining factor for the mode of arc root attachment. At lower nozzle temperatures, constricted type attachment with unstable motions of the arc root was observed, while a fully diffused and stable arc root was observed at elevated nozzle temperatures. Output energy distribution analysis shows that losses from frozen flow and exhaust thermal losses are the main parts in limiting the efficiency of arcjet thrusters. |
Keyword | Arcjet Thruster Performance Energy Dissipation |
Indexed By | 其他 |
Language | 英语 |
Document Type | 会议论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/43288 |
Collection | 等离子体与燃烧中心(2009-2011) |
Corresponding Author | Huang HJ(黄河激) |
Recommended Citation GB/T 7714 | Huang HJ,Pan WX,Wu CK. Experimental study on energy dissipation in a 1 kW arcjet thruster[C]13th Asian Congress of Fluid Mechanics.Dhaka, Bangladesh.2010-12-17~2010-12-21.,2011. |
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