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  • THERMODYNAMICS AND COMBUSTION  (5)
  • 2005-2009
  • 1970-1974  (5)
  • 1
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    High temperature insulation materials for reradiative Thermal Protection Systems (TPS) (1971)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: High temperature insulation materials for use under radiative thermal protection systems of shuttle orbiter vehicle
    Schlagwort(e): THERMODYNAMICS AND COMBUSTION
    Materialart: NASA-CR-119950 , MDC-E0449
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 2
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    Radiative contribution to the thermal conductivity of fibrous insulations (1974)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: An approach is shown for using a simple two-flux model to interpret infrared transmission data for a variety of reuseable surface insulations materials and to calculate the radiation transmission. A description is given of preliminary experiments on mullite and silica-based materials. The calculated parameters are compared with the measured values of the total thermal conductivity, as determined on guarded hot plate equipment. It is pointed out that for many samples the newly developed four-flux model must be utilized because the scattering properties of the fibers are often dependent on the wavelength of the radiation.
    Schlagwort(e): THERMODYNAMICS AND COMBUSTION
    Materialart: Symposium on Heat transmission measurements in thermal insulations; Apr 16, 1973 - Apr 17, 1973; Philadelphia, PA
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 3
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    The infrared properties of reusable surface insulations. (1973)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: The total infrared scattering and absorption cross sections of both flexible and rigidized high temperature fibrous insulations have been measured. The methods for accomplishing these measurements are described. Infrared reflection and transmission spectra were obtained to study the dependence of the total cross sections on the spectral characteristics of the transported radiation. These results are applied to steady-state effective thermal conductivity measurements via a four-flux model of radiative heat transfer to separate the radiative component and to calculate the effective thermal conductivity under transient heating conditions. Data for both silica and mullite fibers are presented.
    Schlagwort(e): THERMODYNAMICS AND COMBUSTION
    Materialart: AIAA PAPER 73-745 , Thermophysics Conference; Jul 16, 1973 - Jul 18, 1973; Palm Springs, CA
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 4
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    High temperature insulation materials for reradiative thermal protection systems (1972)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: Results are presented of a two year program to evaluate packaged thermal insulations for use under a metallic radiative TPS of a shuttle orbiter vehicle. Evaluations demonstrated their survival for up to 100 mission reuse cycles under shuttle acoustic and thermal loads with peak temperatures of 1000 F, 1800 F, 2000 F, 2200 F and 2500 F. The specimens were composed of low density refractory fiber felts, packaged in thin gage metal foils. In addition, studies were conducted on the venting requirements of the packages, salt spray resistance of the metal foils, and the thermal conductivity of many of the insulations as a function of temperature and ambient air pressure. Data is also presented on the radiant energy transport through insulations, and back-scattering coefficients were experimentally determined as a function of source temperature.
    Schlagwort(e): THERMODYNAMICS AND COMBUSTION
    Materialart: NASA-CR-123945 , MDC-E0666
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 5
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    Radiant Heat Transfer in Reusable Surface Insulation (1973)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: During radiant testing of mullite panels, temperatures in the insulation and support structure exceeded those predicted on the basis of guarded hot plate thermal conductivity tests. Similar results were obtained during arc tunnel tests of mullite specimens. The differences between effective conductivity and guarded hot plate values suggested that radiant transfer through the mullite was occurring. To study the radiant transport, measurements were made of the infrared transmission through various insulating materials and fibers of interest to the shuttle program, using black body sources over the range of 780 to 2000 K. Experimental data were analyzed and scattering coefficients were derived for a variety of materials, fiber diameters, and source temperature.
    Schlagwort(e): THERMODYNAMICS AND COMBUSTION
    Materialart: NASA. Ames Res. Center Symp. on Reusable Surface Insulation for Space Shuttle, Vol. 1; 197-226
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
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