The effect of water addition on NO formation in counterflow CH4/air premixed flames was investigated by numerical simulation. Detailed chemistry and complex thermal and transport properties were employed. The results show that the addition of water to a flame suppresses the formation of NO primarily due to the flame temperature drop. Among a lean, a stoichiometric and a rich premixed flame, the effectiveness of water addition is most significant for the stoichiometric flame and least for the rich flame, since the dominant NO formation mechanism varies. The addition of water also reduces the formation of NO in a flame because of chemical effect that increases the concentration of OH, while reduces the concentrations of O and H. Compared to the stoichiometric flame, the chemical effect is intensified in the lean and rich flames.
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ASME 2005 Internal Combustion Engine Division Fall Technical Conference
September 11–14, 2005
Ottawa, Ontario, Canada
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4736-5
PROCEEDINGS PAPER
A Numerical Study on the Effect of Water Addition on NO Formation in Counterflow CH4/Air Premixed Flames Available to Purchase
Hongsheng Guo,
Hongsheng Guo
National Research Council of Canada, Ottawa, ON, Canada
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Stuart W. Neill,
Stuart W. Neill
National Research Council of Canada, Ottawa, ON, Canada
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Gregory J. Smallwood
Gregory J. Smallwood
National Research Council of Canada, Ottawa, ON, Canada
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Hongsheng Guo
National Research Council of Canada, Ottawa, ON, Canada
Stuart W. Neill
National Research Council of Canada, Ottawa, ON, Canada
Gregory J. Smallwood
National Research Council of Canada, Ottawa, ON, Canada
Paper No:
ICEF2005-1299, pp. 383-391; 9 pages
Published Online:
November 11, 2008
Citation
Guo, H, Neill, SW, & Smallwood, GJ. "A Numerical Study on the Effect of Water Addition on NO Formation in Counterflow CH4/Air Premixed Flames." Proceedings of the ASME 2005 Internal Combustion Engine Division Fall Technical Conference. ASME 2005 Internal Combustion Engine Division Fall Technical Conference (ICEF2005). Ottawa, Ontario, Canada. September 11–14, 2005. pp. 383-391. ASME. https://doi.org/10.1115/ICEF2005-1299
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