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Flow and Combustion in Advanced Gas Turbine CombustorsA Simplified Model for Soot Formation in Gas Turbine Combustion Chambers

Flow and Combustion in Advanced Gas Turbine Combustors: A Simplified Model for Soot Formation in... [Soot resulting from combustion processes is known to have a negative impact on health and environment. Soot also may lead to material damages especially in gas turbines. Therefore, a deeper insight in the processes leading to the formation and consumption of the soot precursors and soot particles is needed. For describing these processes a reaction kinetical model is needed representing the different steps. The processes happening in the gas phase are described by elementary chemical reactions, whereas for the particle phase a more complex formalism is needed due to the enormous number of different particles possible. In this work the processes in the particle phase are represented by the detailed soot model. A kinetical description of the processes is developed along with a mathematical representation of the model. This is done for shock tube conditions that can be assumed to be spatially homogeneous, allowing to focus on models of the chemical processes. In a next step this model is implemented for laminar flame conditions. Here additional transport phenomena are considered which helps improving gas phase and particle reaction models for representing soot formation in practical combustion devices. Besides giving a deeper insight into soot formation processes, the detailed soot model is needed for calibrating and adjusting a simplified soot model. This is used for simulating soot formation in complex technical systems like gas turbines.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Flow and Combustion in Advanced Gas Turbine CombustorsA Simplified Model for Soot Formation in Gas Turbine Combustion Chambers

Part of the Fluid Mechanics and Its Applications Book Series (volume 1581)
Editors: Janicka, Johannes; Sadiki, Amsini; Schäfer, Michael; Heeger, Christof

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References (49)

Publisher
Springer Netherlands
Copyright
© Springer Science+Business Media Dordrecht 2013
ISBN
978-94-007-5319-8
Pages
205 –233
DOI
10.1007/978-94-007-5320-4_7
Publisher site
See Chapter on Publisher Site

Abstract

[Soot resulting from combustion processes is known to have a negative impact on health and environment. Soot also may lead to material damages especially in gas turbines. Therefore, a deeper insight in the processes leading to the formation and consumption of the soot precursors and soot particles is needed. For describing these processes a reaction kinetical model is needed representing the different steps. The processes happening in the gas phase are described by elementary chemical reactions, whereas for the particle phase a more complex formalism is needed due to the enormous number of different particles possible. In this work the processes in the particle phase are represented by the detailed soot model. A kinetical description of the processes is developed along with a mathematical representation of the model. This is done for shock tube conditions that can be assumed to be spatially homogeneous, allowing to focus on models of the chemical processes. In a next step this model is implemented for laminar flame conditions. Here additional transport phenomena are considered which helps improving gas phase and particle reaction models for representing soot formation in practical combustion devices. Besides giving a deeper insight into soot formation processes, the detailed soot model is needed for calibrating and adjusting a simplified soot model. This is used for simulating soot formation in complex technical systems like gas turbines.]

Published: Sep 8, 2012

Keywords: Polyaromatic hydrocarbons; Soot; Modelling

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