The effect of fuel composition on flame dynamics

被引：11
作者：
Hendricks, Adam G.
Vandsburger, Uri
机构：
[1] Univ Michigan, Dept Engn Mech, Ann Arbor, MI 48109 USA
[2] Virginia Tech, Dept Engn Mech, Blacksburg, VA 24061 USA
来源：
EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2007年 / 32卷 / 01期
关键词：
flame dynamics; flame transfer function; tunable diode laser absorption spectroscopy; chemiluminescence;
D O I：
10.1016/j.expthermflusci.2007.02.007
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
As fuel sources diversify, the gas turbine industry is under increasing pressure to develop fuel-flexible plants, able to use fuels with a variety of compositions from a large range of sources. However, the dynamic characteristics vary considerably with composition, in many cases altering the thermoacoustic stability of the combustor. We compare the flame dynamics, or the response in heat release rate of the flame to acoustic perturbations, of the three major constituents of natural gas: methane, ethane, and propane. The heat release rate is quantified using OH* chemiluminescence and product gas temperature. Gas temperature is measured by tracking the absorption of two high-temperature water lines, via Tunable Diode Laser Absorption Spectroscopy. The flame dynamics of the three fuels differ significantly. The changes in flame dynamics due to variations in fuel composition have the potential to have a large effect on the thermoacoustic stability of the combustor. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：126 / 132
页数：7
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