NO2Formation in the Mixing Region of Hot Burned Gas with Cool Air—Effect of Surrounding Air
- 1 September 1985
- journal article
- research article
- Published by Taylor & Francis in Combustion Science and Technology
- Vol. 43 (5-6) , 259-269
- https://doi.org/10.1080/00102208508947008
Abstract
Conservation equations are numerically solved for the hot burned gas of methane-air with surrounding air with or without unburned methane to investigate the influence of the presence of unburned hydrocarbon in the surrounding air and of the surrounding gas temperature on the formation of N02 in the mixing region of hot burned gases with surrounding cool air. The spatial distributions of temperature and species concentrations in the gas mixture were predicted in laminar flow field at atmospheric pressure. In the mixing region, the presence of unburned methane in the surrounding air is found to promote the conversion of NO to N02 and its conversion ratio N02/NOx increases with increa se in the amount of unburned methane. The N02 formation in the mixing region is suppressed with increase in the temperature of surrounding air with or without unburned methane.Keywords
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