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http://dx.doi.org/10.6108/KSPE.2021.25.5.065

Development of a 700 W Class Laboratory Model Hall Thruster  

Doh, Guentae (Department of Physics, Korea Advanced Institute of Science and Technology, KAIST)
Kim, Youngho (Department of Nuclear and Quantum Engineering, KAIST)
Lee, Dongho (Department of Physics, Korea Advanced Institute of Science and Technology, KAIST)
Park, Jaehong (Space Exploration Engineering Program, Department of Aerospace Engineering, KAIST)
Choe, Wonho (Department of Nuclear and Quantum Engineering, KAIST)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.25, no.5, 2021 , pp. 65-72 More about this Journal
Abstract
700 W class laboratory model Hall thruster, which can be used for the orbit control or station keeping of small satellites, was developed. The size of the discharge channel was determined using a scaling law, and the magnetic field was designed to be symmetric with respect to the midline of the discharge channel and to be maximized outside the discharge channel. Base pressure of a vacuum chamber was maintained below 2.0×10-5 Torr during experiments, and the thrust was measured by a thrust stand. The anode flow rate and coil current were varied with the fixed anode voltage at 300 V. Under the operation condition at 2.36 mg/s anode flow rate and 2.4 A coil current, performance was optimized as 38 mN thrust, 1,540 s total specific impulse, and 50 % anode efficiency at 620 W anode power.
Keywords
Hall Thruster; Electric Propulsion; LEO Satellite;
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