| タイトル | Fuel/air nonuniformity - Effect on nitric oxide emissions |
| 著者（英） | Lyons, V. J. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1981-01-01 |
| 言語 | eng |
| 内容記述 | An analytical and experimental study was performed to determine the effect of inlet fuel/air profile nonuniformity on NO(x) emissions. The theoretical NO(x) levels were verified in a flame-tube rig at inlet air temperatures of 600, 700, and 800 K, 0.3 MPa rig pressure, 25 m/sec reference velocity, overall equivalence ratio of 0.6 and residence time near 0.002 sec. The theory predicts an increase in NO(x) emissions for increased fuel/air nonuniformity for average equivalence ratios less than 0.7, while for average equivalence ratios near stoichiometric, increasing the nonuniformity will decrease NO(x) emissions. The results can be used to predict the degree of uniformity of fuel/air profiles necessary to achieve NO(x) emissions goals for actual engines that use lean premixed, prevaporized combustion systems. |
| NASA分類 | AIRCRAFT PROPULSION AND POWER |
| レポートNO | 81A20834
AIAA PAPER 81-0327 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/418156 |
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