A COMPARISON OF IGNITION PHENOMENA MODELED WITH DETAILED AND SIMPLIFIED KINETICS

被引：10
|
作者：
SLOANE, TM
RONNEY, PD
机构：
[1] GM CORP,DEPT PHYS CHEM,RES LABS,WARREN,MI 48090
[2] PRINCETON UNIV,DEPT MECH & AEROSP ENGN,PRINCETON,NJ 08544
来源：
COMBUSTION SCIENCE AND TECHNOLOGY | 1993年 / 88卷 / 1-2期
关键词：
D O I：
10.1080/00102209308947224
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Recent numerical calculations have predicted minimum ignition energies for stoichiometric methane-air mixtures which are a factor of 70 lower than experimental values. We show that most of this discrepancy is due to the use of a one-step kinetic model whose numerical values were chosen to reproduce burning velocities and heat-release profiles of steady one-dimensional flames. When a detailed chemical mechanism is employed, the predicted minimum ignition energies are close to the experimental values, especially when losses present in the experiments are considered. The reasons why these one-step models do not provide good quantitative predictions of ignition phenomena are discussed and the implications for the modelling of transient flame phenomena with simplified chemical models are given.
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页码：1 / 13
页数：13
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