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

Glass, David E. and Capriotti, Diego P. and Reimer, Thomas and Kütemeyer, Marius and Smart, Michael K. (2013) Testing of DLR C/C-SiC for HIFiRE 8 Scramjet Combustor. In: 7th European Workshop on Thermal Protection Systems and Hot Structures. 7th European Workshop on Thermal Protection Systems and Hot Structures, 8.-10. April 2013, Noordwijk, Niederlande.

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Abstract

Ceramic Matrix Composites (CMCs) have been proposed for use as light-weight 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 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 materials were installed downstream of a hydrogen-fueled dual-mode ramjet combustor and tested for several minutes at conditions simulating flight at Mach 5 and Mach 6. Gaseous hydrogen fuel was used to fuel the ramjet combustor. The test panels were instrumented with embedded Type K and Type S thermocouples. Zirconia felt insulation was used during some of the tests to reduce heat loss from the back surface and thus increase the heated surface temperature of the C/C-SiC panel ~ 177°C (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.

Item URL in elib:https://elib.dlr.de/87092/
Document Type:Conference or Workshop Item (Speech)
Title:Testing of DLR C/C-SiC for HIFiRE 8 Scramjet Combustor
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Glass, David E.NASAUNSPECIFIED
Capriotti, Diego P.NASAUNSPECIFIED
Reimer, Thomasthomas.reimer (at) dlr.deUNSPECIFIED
Kütemeyer, Mariusmarius.kuetemeyer (at) dlr.deUNSPECIFIED
Smart, Michael K.University of Queensland, Brisbane, AustralienUNSPECIFIED
Date:8 April 2013
Journal or Publication Title:7th European Workshop on Thermal Protection Systems and Hot Structures
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CMC, scramjet, combustor, C/C-SiC, HIFiRE test.
Event Title:7th European Workshop on Thermal Protection Systems and Hot Structures
Event Location:Noordwijk, Niederlande
Event Type:Workshop
Event Dates:8.-10. April 2013
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Shefex III
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Space Structural Components
Deposited By: Reimer, Thomas
Deposited On:14 Jan 2014 15:17
Last Modified:31 Jul 2019 19:44

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