Thrust Evaluation of an Arcjet Thruster Using Dimethyl Ether as a Propellant

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概要

• 論文の詳細を見る

• This paper describes the performance of an arcjet thruster using dimethyl ether (DME) as a propellant. DME, an ether compound, has adequate characteristics for space propulsion systems; DME is storable in a liquid state without a high pressure or cryogenic device and requires no sophisticated temperature management. DME is gasified and liquefied simply by adjusting temperature, whereas hydrazine, a conventional propellant, requires an iridium-based particulate catalyst for its gasification. In this study, thrust of the designed kW-class DME arcjet thruster is measured with a torsional thrust stand. Thrust measurements show that thrust is increased with propellant mass flow rate, and that thrust using DME propellant is higher than when using nitrogen. The prototype DME arcjet thruster yields a specific impulse of 330 s, a thruster efficiency of 0.14, and a thrust of 0.19 N at 60-mg/s DME mass flow rate at 25-A discharge current. The corresponding discharge power and specific power are 2.3 kW and 39 MJ/kg.

• 2012-03-04

著者

• Tachibana Takeshi

  Department Of Material Science And Technology University Of Hyogo

• Beppu Shinji

  Department Of Mechanical Engineering Kyushu Institute Of Technology

• KAKAMI Akira

  Department of Mechanical Engineering, Kyushu Institute of Technology

• MAIGUMA Muneyuki

  Department of Mechanical Engineering, Kyushu Institute of Technology

• TACHIBANA Takeshi

  Department of Mechanical Engineering, Kyushu Institute of Technology

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• Thrust Evaluation of an Arcjet Thruster Using Dimethyl Ether as a Propellant

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