Formation and Destruction of Nitric Oxide in NO Doped Premixed Flames of C2H4, C2H6, and C3H8 at Atmospheric Pressure

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• 作者：Alexander A. Konnov ; Igor V. Dyakov ; Denis A. Knyazkov ; Oleg P. Korobeinichev
• 刊名：Energy & Fuels
• 出版年：2010
• 出版时间：September 16, 2010
• 年：2010
• 卷：24
• 期：9
• 页码：4833-4840
• 全文大小：922K
• 年卷期：v.24,no.9(September 16, 2010)
• ISSN：1520-5029

文摘

A study of the formation and destruction of NO in adiabatic laminar premixed flames of C₂H₄ + O₂ + N₂, C₂H₆ + O₂ + N₂, and C₃H₈ + O₂ + N₂ doped with NO (100 ppm in N₂) in a range of equivalence ratios at atmospheric pressure is presented. The heat flux method was employed to measure adiabatic burning velocities of these flames. Nitric oxide concentrations in the post flame zone at 10, 15, and 20 mm above the burner surface were measured using probe sampling. Burning velocities and NO concentrations simulated using a previously developed chemical kinetic mechanism were compared with the experimental results. The conversion ratio of NO seeded into the flames was determined. The kinetic mechanism accurately predicts burning velocities over the entire range of equivalence ratios. Significant discrepancies between the measured and calculated NO conversion in the flames were observed and discussed.