Ceramic Matrix Composites (CMCs) have been proposed for hot structures in scramjet combustors. Previous studies have calculated significant weight savings by utilizing CMCs (active and passive) versus actively cooled metallic scramjet structures. Both a C/C and a C/C-SiC material system fabricated by DLR (Stuttgart, Germany) are being considered for use in a passively cooled combustor design for HIFiRE 8, a joint Australia / AFRL hypersonic flight program, expected to fly at Mach 7 for ~ 30 sec, at a dynamic pressure of 55 kPa. Flat panels of the DLR C/C and the C/C-SiC were tested in the NASA Langley Direct Connect Rig (DCR) at Mach 5 and Mach 6 enthalpy for several minutes. Gaseous hydrogen fuel was used to fuel the scramjet combustor. The test panels were instrumented with embedded Type K and Type S thermocouples. Zirconia felt insulation was used in some of the tests to increase the surface temperature of the C/C-SiC panel ~ 350?F. The final C/C-SiC panel was tested for 3 cycles totaling over 135 sec at Mach 6 enthalpy. Slightly more erosion was observed on the C/C panel than the C/C-SiC panels, but both material systems demonstrated acceptable recession performance for the HIFiRE 8 flight.


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    Titel :

    Testing of DLR C/C-SiC for HIFiRE 8 Scramjet Combustor


    Beteiligte:
    David E Glass (Autor:in) / Diego P Capriotti (Autor:in) / Thomas Reimer (Autor:in) / Marius Kutemeyer (Autor:in) / Michael Smart (Autor:in)

    Kongress:

    7th European Workshop on Thermal Protection Systems and Hot Structures ; 2013 ; Noordwijk, NL


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Testing of DLR C/C-SiC for HIFiRE 8 Scramjet Combustor

    Glass, David E. / Capriotti, Diego P. / Reimer, Thomas et al. | NTRS | 2013


    Large Eddy Simulation of the HIFiRE Direct Connect Rig Scramjet Combustor

    Lacaze, Guilhem / Vane, Zachary / Oefelein, Joseph C. | AIAA | 2017


    Testing of DLR C/C-SiC and C/C for HIFiRE 8 Scramjet Combustor

    Glass, David E. / Capriotti, Diego / Reimer, Thomas et al. | AIAA | 2014


    Testing of DLR C/C-SiC and C/C for HIFiRE 8 Scramjet Combustor

    D. E. Glass / D. P. Capriotti / T. Reimer et al. | NTIS | 2014


    Testing of DLR C/C-SiC and C/C for HIFiRE 8 Scramjet Combustor

    Glass, David E. / Capriotti, Diego P. / Reimer, Thomas et al. | NTRS | 2014