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Team HEaTT. Thermal Protection System Testing in High Enthalpy Facility. Progress Report #4. Richard French Vitaliy Grigoryev November 17, 2005. Summary. Schedule Update Testing Update Improvements Preliminary Lessons Learned Immediate Needs. Schedule.
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Team HEaTT Thermal Protection System Testing in High Enthalpy Facility Progress Report #4 Richard French Vitaliy Grigoryev November 17, 2005
Summary • Schedule Update • Testing Update • Improvements • Preliminary Lessons Learned • Immediate Needs
Testing Overview - Ongoing • Fully Characterize HETF - Test Section Temperature Profile - Mounting Stand Conduction - Wall Temperature • Axial Temperature Probe
Axial Temperature Probe • 1 meter Uni-strut • 7 J-type thermocouples • Variable Test-to-Test Flame Temperature - Raise and lower on pulley system
Testing Overview - Planned • Establish Effective Operating Procedures - Wire Harness Protection - Measurement Confidence - Test Duration Limits • Shuttle Tile Sample Test
Improvements • High temperature thermal cement for thermocouple interface • Better wire harness shielding • Pitot Probe re-positioned to rear, with thermocouple installed
Preliminary Lessons • Steady state measurements difficult to obtain - Temperature fluctuations due to non- uniform flow • Thermal inertia of Test Stand, Axial Probe may affect measurements
Immediate Needs • High temp thermocouple for measuring flame temp • Verify thermocouple calibration • Digital Data Acquisition System • K-thermocouple wire to make better use of analog equipment • Space Shuttle Tile!!!
Thanks QUESTIONS?