New low emission strategies and combustor designs for civil aeroengine applications

被引:29
作者
Bauer, HJ [1 ]
机构
[1] Rolls Royce Deutschland Ltd & Co KG, D-15827 Dahlewitz, Germany
来源
PROGRESS IN COMPUTATIONAL FLUID DYNAMICS | 2004年 / 4卷 / 3-5期
关键词
aeroengine; gas turbine; combustion; NOx; NO formation; operability; pressure ratio; rich burn-quick quench-lean burn combustion; lean premixed prevapourised combustion; lean direct injection; lean module; staged combustion;
D O I
10.1504/PCFD.2004.004081
中图分类号
O414.1 [热力学];
学科分类号
摘要
In the past combustion computational fluid dynamics (CFD) in the framework of aeroengines mainly concentrated on high power conditions of combustors using diffusion type flames. In this paper an overview of novel combustion concepts is given setting the scene for future CFD activities. The demand to lower emissions from jet engines powering passenger aircrafts has prompted a variety of research programmes devoted to this subject. In parallel to the optimisation of conventional combustors with respect to pollutant emissions, particularly nitrogen oxides, novel concepts have been invented, investigated and developed to different degrees of maturity. This presentation starts with a comprehensive overview on the requirements, discusses the NO formation mechanisms and presents concepts to overcome them. An assessment of the various concepts is made taking into account their specific advantages and drawbacks.
引用
收藏
页码:130 / 142
页数:13
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