Plasma and Electrode Emissions from a 1 kW Hydrogen-Nitrogen Arcjet Thruster
Journal Article
·
· AIP Conference Proceedings
- Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 (China)
Arc root behavior affects the energy transfer and nozzle erosion in an arcjet thruster. To investigate the development of arc root attachment in 1 kW class N{sub 2} and H{sub 2}-N{sub 2} arcjet thrusters from the time of ignition to the stably working condition, a kinetic series of end-on view images of the nozzle obtained by a high-speed video camera was analyzed. The addition of hydrogen leads to higher arc voltage levels and the determining factor for the mode of arc root attachment was found to be the nozzle temperature. 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.
- OSTI ID:
- 21361953
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1233; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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