Vaporization and decomposition kinetics of candidate re-entry blackout suppressants in low-pressure flames, Volume 1330
National Aeronautics and Space Administration, 1969 - Technology & Engineering - 58 pages
This report investiagtes measurement of thermal accommodation coefficients between liquids and high temperature gases in low pressure reentry communications blackout intervals.
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3M Company 40 Torr activation energy AeroChem argon Baule Baule's theory Bott burner C8F18 vapor calculations capillary Chemical Kinetics cm sec-1 co/o2 co/o2 CO/air collision communications blackout decomposition kinetics decomposition rates diameter droplet evaporation rates droplet sizes droplet surface electrophilic vapors environments essentially estimated evaluation experimental Fenimore and Jones FLAME CHARACTERISTICS flame gases flame temperatures fluorocarbon free molecule Freon E-8 H atoms heat transfer high-temperature kcal mole-1 Kurzius liquid jet LIQUID PROPERTIES liquid surface mass mean droplet mean free path measurements Modica Mole Fractions molecular molecular mass parameters perfluoro-octane Plasma pre-exponential factor predicted present experiments present study pressures probe rate constants ratio re-entry blackout suppressants re-entry flow fields reaction relatively SF6 decomposition shown in Table Sulfur hexafluoride Table VIII thermal accommodation coefficients thermocouple TORR CO/AIR FLAME translational energy transfer translational thermal accommodation uniformly sized droplets values vibrational vibrationally excited water droplets