Turbulent Combustion of Hydrogen-CO Mixtures

被引：7

作者：

Burluka, Alexey A. ^{[1
]}

Hussin, Ahmed M. T. El-Dein ^{[1
]}

Sheppard, Christopher G. W. ^{[1
]}

Liu, Kexin ^{[2
]}

Sanderson, Victoria ^{[2
]}

机构：

[1] Univ Leeds, Sch Mech Engn, Leeds LS2 9JT, W Yorkshire, England

[2] Siemens Ind Turbomachinery Ltd, Lincoln LN5 7FD, England

来源：

FLOW TURBULENCE AND COMBUSTION | 2011年 / 86卷 / 3-4期

关键词：

Syngas combustion; Hydrogen and carbon monoxide flames; Turbulent combustion; Turbulent burning rate; Flame instability; SELF-SIMILAR PROPAGATION; BURNING VELOCITIES; MARKSTEIN NUMBERS; SPHERICAL FLAME; INSTABILITIES; EXPLOSIONS; SIMULATIONS; PRESSURES; SURFACE; SPEEDS;

D O I：

10.1007/s10494-011-9342-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Laminar and turbulent burning velocities were measured in a closed-volume fan-stirred vessel for H-2-CO mixtures using two independent methods of flame definition. It has been shown that the unsteady flame development is an important factor and it needs to be taken into account for comparison of the burning rates obtained in different experiments. For the atmospheric pressure flames, the mixtures with faster laminar flame velocities burnt faster in turbulent flow despite the fact that the lean flames exhibit cellular structures. However, even a modest increase of the initial pressure promotes strongly cellularity and causes a significant acceleration of a lean laminar flame. The same lean flame burns faster in turbulent flow as well and this increase in the rate of combustion is greater that can be deduced from variation of the molecular heat diffusivity and laminar flame speed.

引用

页码：735 / 749

页数：15

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