This paper reviews the technology options for a fission-based electric propulsion system for interstellar precursor missions. To achieve a total ΔV of more than 100 km/s in less than a decade of thrusting with an electric propulsion system of 10,000 s Isp requires a specific mass for the power system of less than 35 kg/k We. Three possible configurations are described: (1) a UZrH-fueled, NaK-cooled reactor with a steam Rankine conversion system, (2) a UN-fueled gas-cooled reactor with a recuperated Brayton conversion system, and (3) a UN-fueled heatpipe-cooled reactor with a recuperated Brayton conversion system. All three of these systems have the potential to meet the specific mass requirements for interstellar precursor missions in the near term. Advanced versions of a fission-based electric propulsion system might travel as much as several light years in 200 years.


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    Titel :

    Fission-based electric propulsion for interstellar precursor missions


    Beteiligte:
    Lipinski, Ronald J. (Autor:in) / Lenard, Roger X. (Autor:in) / Wright, Steven A. (Autor:in) / Houts, Michael G. (Autor:in) / Patton, Bruce (Autor:in) / Poston, David (Autor:in) / Bragg, Mary J. (Herausgeber:in) / El-Genk, Mohamed S. (Herausgeber:in)

    Kongress:

    SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM - 2000 ; 2000 ; Albuquerque, New Mexico (USA)


    Erschienen in:

    AIP Conference Proceedings ; 504 , 1 ; 974-983


    Erscheinungsdatum :

    19.01.2000


    Format / Umfang :

    10 pages





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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