Hybrid rockets present a promising alternative to conventional chemical propulsion systems for In-Situ Resource Utilization (ISRU) and in-space applications. While they have many benefits for these applications, there are still many small details that require research before they can be adopted into flight systems. A flexible test facility was developed at JPL to test operation of hybrid motors at small scale (5 cm outer diameter fuel grains) over a range of conditions. Specifically, this paper studies two of the major advantages: low temperature performance and throttling. Paraffin-based hybrid rockets are predicted to have good performance at low temperatures. This could significantly decrease the overall system mass by minimizing the thermal conditioning required for Mars or outer planet applications. Therefore, the coefficient of thermal expansion and glass transition of paraffin are discussed. Additionally, deep throttling has been considered for several applications. This was a natural starting point for hotfire testing using the hybrid propulsion ISRU test facility. Additionally, short length to diameter ratio (L/D) fuel grains are tested to determine if these systems can be packaged into geometrically constrained spaces.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Hybrid Propulsion In-Situ Resource Utilization Test Facility Results


    Beteiligte:

    Kongress:

    AIAA Propulsion and Energy Forum and Exposition 2015 ; 2015 ; Orlando, FL, United States


    Erscheinungsdatum :

    27.07.2015


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Hybrid Propulsion In-Situ Resource Utilization Test Facility Results

    Karp, Ashley C. / Nakazono, Barry / Vaughan, David et al. | AIAA | 2015


    Hybrid Propulsion In-Situ Resource Utilization Test Facility Results

    Karp, Ashley Chandler / Nakazono, Barry / Vaughan, David et al. | NTRS | 2015



    Hybrid Propulsion In-Situ Resource Utilization Test Facility Development

    Chandler, Ashley / Gatto, Corinne / Nakazono, Barry et al. | NTRS | 2014