Influence of the Injector Geometry on Mixing and Lift-Off of Premixed Jet Flames in Hot Cross Flow
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Beschreibung
Lean premixed single-stage combustion is state of the art for low pollution combustion in heavy-duty gas turbines with gaseous fuels. The application of premixed jets in multi-stage combustion is a promising approach to lower nitric oxide emissions and to enhance turn-down ratio. In this work mixing and jet flame lift-off heights are investigated experimentally. Mixing is optimized by varying jet nozzle geometries and described with correlations. A parameter study is conducted to identify the influencing variables of flame lift-off. Finally, a new model is developed to predict the lift-off height of premixed jet flames in hot cross flow.
Autor*in
Michael Kolb
Themen in »Influence of the Injector Geometry on Mixing and Lift-Off of Premixed Jet Flames in Hot Cross Flow«
Hot Cross Flow Injector Geometry Premixed Jet Flames