Mission analyses were completed to show the benefits of low-power electrothermal propulsion systems for three classes'of LEO smallsat missions. Three different electrothermal systems were considered: (1) a 40 W ammonia resistojet system, (2) a 600 W hydrazine arcjet system, and (3) a 300 W ammonia resistojet. The benefits of using two 40 W ammonia resistojet systems were analyzed for three months of drag makeup of a Shuttle-launched 100 kg spacecraft in a 297 km orbit. The two 46 W resistojets decreased the propulsion system wet mass by 50% when compared to state-of-art hydrazine monopropellant thrusters. The 600 W arcjet system was used for a 300 km sun synchronous makeup mission of a 1000 kg satellite and was found to decrease the wet propulsion mass by 30%. Finally, the 300 W arcjet system was used on a 200 kg Earth-orbiting spacecraft for both orbit transfer from 300 to 400 km, two years of drag makeup, and a final orbit rise to 700 km. The arcjet system was determined to halve the propulsion system wet mass required for that scenario as compared to hydrazine monopropellant thrusters.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Benefits of Low-Power Electrothermal Propulsion


    Beteiligte:
    S. R. Oleson (Autor:in) / J. M. Sankovic (Autor:in)

    Erscheinungsdatum :

    1997


    Format / Umfang :

    15 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    BENEFITS OF LOW-POWER ELECTROTHERMAL PROPULSION

    Oleson, S. R. / Sankovic, J. M. / United States | British Library Conference Proceedings | 1996


    Benefits of Low-Power Electrothermal Propulsion

    Oleson, Steven R. / Sankovic, John M. | NTRS | 1997


    Electrothermal propulsion

    Martinek, F. | Engineering Index Backfile | 1960


    Electrothermal propulsion testing techniques

    Ducati, A.C. / Muehlberger, E. / Todd, J.P. | Engineering Index Backfile | 1964


    ELECTROTHERMAL PROPULSION TESTING TECHNIQUES

    DUCATI, ADRIANO / MUEHLBERGER, ERICH / TODD, JAMES | AIAA | 1964