| タイトル | Gas-phase measurements of combustion interaction with materials for radiation-cooled chambers |
| 著者（英） | Rosenberg, S. D.; Barlow, R. S.; Jassowski, D. M.; Lucht, R. P. |
| 著者所属（英） | Sandia National Labs.; Aerojet-General Corp. |
| 発行日 | 1991-06-01 |
| 言語 | eng |
| 内容記述 | Foil samples of Ir and Pt are exposed to combustion products in a controlled premixed environment at atmospheric pressure. Electrical heating of the foil samples is used to control the surface temperature and to elevate it above the radiative equilibrium temperature within the test apparatus. Profiles of temperature and OH concentration in the boundary layer adjacent to the specimen surface are measured by laser-induced fluorescence. Measured OH concentrations are significantly higher than equilibrium concentrations calculated for the known mixture ratio and the measured temperature profiles. This result indicates that superequilibrium concentrations of H-atoms and O-atoms are also present in the boundary layer, due to partial equilibrium of the rapid binary reactions of the H2/O2 chemical kinetic system. These experiments are conducted as part of a research program to investigate fundamental aspects of the interaction of combustion gases with advanced high-temperature materials for radiation-cooled thrusters. |
| NASA分類 | INORGANIC AND PHYSICAL CHEMISTRY |
| レポートNO | 91A44158
AIAA PAPER 91-2216 |
| 権利 | Copyright |
