富油燃烧/快速淬熄/贫油燃烧(RQL)工作模式下驻涡燃烧室排放性能试验

金义; 何小民; 蒋波

富油燃烧/快速淬熄/贫油燃烧(RQL)工作模式下驻涡燃烧室排放性能试验

南京航空航天大学能源与动力学院,南京 210016

基金项目: 航空科学基金(2008ZB52013)

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出版历程
- 收稿日期: 2010-04-21
- 修回日期: 2010-09-21
- 刊出日期: 2011-05-28

Experimental study on emission performance of rich-burn quick-quench lean-burn (RQL) trapped-vortex combustor

College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 针对使用液态燃料(航空煤油)的富油燃烧/快速淬熄/贫油燃烧(RQL)工作模式驻涡燃烧室排放性能开展了系统的试验研究,分析总结了驻涡区余气系数、进口空气流量和进口空气温度等参数影响RQL工作模式驻涡燃烧室排放性能的变化规律.结果表明:随着驻涡区余气系数增大(α=0.61~1.53),CO和UHC(未燃碳氢化合物)体积分数升高,NO_x体积分数降低;随着进口空气流量增大(W_a=0.4~0.6kg/s),CO,UHC,NO_x体积分数均升高;随着进口空气温度升高(283~473K),CO和UHC体积分数降低,NO_x体积分数升高.
- 富油燃烧/快速淬熄/贫油燃烧(RQL) /
- 驻涡燃烧室 /
- 液态燃料 /
- 排放性能 /
- 余气系数
Abstract: An experimental study focused on emission performance of trapped-vortex combustor (TVC) with liquid fuel under rich-burn quick-quench lean-burn (RQL) mode was performed.The effect of a variety of parameters on emission performance was obtained,such as excess air coefficient of cavity,airflow rate and inlet temperature.The results show that:CO and UHC (unburned hydrocarbon) volume fractions increase as the excess air coefficient of cavity increases (α=0.61~1.53) while NO_x volume fraction decreases;the emission performance of the combustor gets worse as airflow rate(W_a=0.4~0.6kg/s)increases,CO,UHC and NO_x volume fractions increase;CO and UHC volume fractions decline and NO_x volume fraction rises with the increase of inlet temperature (283~473K).
- rich-burn quick-quench lean-burn (RQL) /
- trapped-vortex combustor /
- liquid-fuel /
- emission performance /
- excess air coefficient

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参考文献(13)

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