A THEORETICAL-ANALYSIS OF THE EXTINCTION LIMITS OF A METHANE AIR OPPOSED-JET DIFFUSION FLAME

被引：12
|
作者：
OLSON, SL [1 ]
TIEN, JS [1 ]
机构：
[1] CASE WESTERN RESERVE UNIV,DEPT MECH & AEROSP ENGN,CLEVELAND,OH 44106
来源：
COMBUSTION AND FLAME | 1987年 / 70卷 / 02期
关键词：
AIR; -; Combustion; FUELS; METHANE;
D O I：
10.1016/0010-2180(87)90076-9
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A theoretical analysis is described for a methane-air diffusion flame stabilized in the forward stagnation region of a porous metal cylinder in a forced convective flow. The analysis includes effects of radiative heat loss from the porous metal surface and finite rate kinetics but neglects the effects of gravity. The theoretically predicted extinction limits compare well with experimentally observed extinction limits from the literature. After the predicted limits compared well with the experimental limits, a parametric study of the effect of fuel surface emissivity and Lewis number was conducted with the numerical model. It was found that the computed blowoff limit is independent of radiative heat loss for high fuel blowing velocities but is a strong function of Lewis number.
引用
收藏
页码：161 / 170
页数：10
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