Effects of Magnetic Shielding Configuration on Discharge Characteristics and Performance of a 60 mm-Diameter Low-Power Hall Thruster

ABSTRACT Lifetime is a main factor restraining the application of low-power Hall thruster. Magnetic shielding configuration is regarded as a promising method to prolong the lifespan of Hall thruster. Aiming to demonstrate the feasibility and effectiveness of magnetic shielding configuration applying...

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Bibliographic Details
Published inJournal of aerospace technology and management Vol. 13
Main Authors Guo, Weilong, Gao, Jun, Gu, Zuo, Guo, Ning, Sun, Ming-ming
Format Journal Article
LanguageEnglish
Portuguese
Published Departamento de Ciência e Tecnologia Aeroespacial 01.01.2021
Instituto de Aeronáutica e Espaço (IAE)
Subjects
ENGINEERING, AEROSPACE
Hall thruster
Lifetime Test
Magnetic shielding
Hall thruster
Performance
Lifetime Test
Magnetic shielding
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Summary:ABSTRACT Lifetime is a main factor restraining the application of low-power Hall thruster. Magnetic shielding configuration is regarded as a promising method to prolong the lifespan of Hall thruster. Aiming to demonstrate the feasibility and effectiveness of magnetic shielding configuration applying on low-power Hall thruster, a 60-mm diameter Hall thruster in partial magnetic shielding configuration was designated. Both the numerical and experimental methods were used to investigate the discharge characteristics of the Hall thruster and help understand the mechanism behind. The maximum anode efficiency was achieved as high as 29.7% with 1.7 mg•s–1 anode mass flow and 320 V discharge voltage. To evaluate the effectiveness of the magnetic shielding used for low-power Hall thruster, a 2000 h lifetime test has been carried out and the results indicate that the erosion rate has been decreased below 0.2 μm•h–1.
ISSN:2175-9146
2175-9146
DOI:10.1590/jatm.v13.1223