With the SMART-1, Department of Defense, and commercial industry successes in Hall thruster technologies, NASA has started considering Hall thrusters for science missions. The recent Discovery proposals included a Hall thruster science mission and the In-Space Propulsion Project is investing in Hall thruster technologies. As the confidence in Hall thrusters improve, ambitious multi-thruster missions are being considered. Science missions often require large throttling ranges due to the 1/r(sup 2) power drop-off from the sun. Deep throttling of Hall thrusters will impact the overall system performance. Also, Hall thrusters can be throttled with both current and voltage, impacting erosion rates and performance. Last, electric propulsion thruster lifetime qualification has previously been conducted with long duration full power tests. Full power tests may not be appropriate for NASA science missions, and a combination of lifetime testing at various power levels with sufficient analysis is recommended. Analyses of various science missions and throttling schemes using the Aerojet BPT-4000 and NASA 103M HiVHAC thruster are presented.


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    Titel :

    Throttling Impacts on Hall Thruster Performance, Erosion, and Qualification for NASA Science Missions


    Beteiligte:

    Erscheinungsdatum :

    2007-01-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Throttling Impacts on Hall Thruster Performance, Erosion, and Qualification for NASA Science Missions AIAA Paper

    Dankanich, J. / DeHoyos, A. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2007


    Hall Thruster Technology for NASA Science Missions

    Manzella, David / Oh, David / Aadland, Randall | AIAA | 2005


    Hall Thruster Technology for NASA Science Missions

    Manzella, David / Oh, David / Aadland, Randall | NTRS | 2005


    Hall Thruster Technology for NASA Science Missions: HiVHAC Status Update

    Peterson, Peter / Kamhawi, Hani / Manzella, David et al. | AIAA | 2007