Superequilibrium O Concentrations and Prompt NO Formation in Laminar Premixed Methane-Air Flames
作者:
S. NARAYAN,
S. RAJAN,
期刊:
Combustion Science and Technology
(Taylor Available online 1998)
卷期:
Volume 139,
issue 1
页码: 159-171
ISSN:0010-2202
年代: 1998
DOI:10.1080/00102209808952085
出版商: Taylor & Francis Group
关键词: NOx;prompt NO;N2O mechanism;superequilibrium O;laminar premixed flames;methane
数据来源: Taylor
摘要:
Superequilibrium concentrations of oxygen atoms which enhance the production of prompt NO in laminar premixed methane-air flames are usually computed using elaborate flame codes. This paper presents a simple method to compute superequilibrium O atom concentrations and simplifies the prompt NO mechanism using steady state relationships such that the flamefront NO production depends solely on the rates of just 3 reactions. The results show that the contribution of the N2O mechanism to the total NO increases dramatically with pressure and that the Fenimore mechanism is more important than the Zeldovich and N2O pathways in the cooler regions of the flame.
点击下载:
PDF (314KB)
返 回