A design study for a cargo transfer vehicle using solar electric propulsion was performed for NASA's Revolutionary Aerospace Systems Concepts program. Targeted for 2016, the solar electric propulsion (SEP) transfer vehicle is required to deliver a propellant supply module with a mass of approximately 36 metric tons from Low Earth Orbit to the first Earth-Moon libration point (LL1) within 270 days. Following an examination of propulsion and power technology options, a SEP transfer vehicle design was selected that incorporated large-area (approx. 2700 sq m) thin film solar arrays and a clustered engine configuration of eight 50 kW gridded ion thrusters mounted on an articulated boom. Refinement of the SEP vehicle design was performed iteratively to properly estimate the required xenon propellant load for the out-bound orbit transfer. The SEP vehicle performance, including the xenon propellant estimation, was verified via the SNAP trajectory code. Further efforts are underway to extend this system model to other orbit transfer missions.


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    Titel :

    Solar Electric Propulsion Vehicle Design Study for Cargo Transfer to Earth-moon L1



    Kongress:

    38th Joint Propulsion Conference and Exhibit ; 2002 ; Indianapolis, IN, United States


    Erscheinungsdatum :

    01.10.2002


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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