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CHARACTERIZATION OF A REAL SIZE RETROFITTABLE CATALYTIC COMBUSTION SYSTEM

Diers, Olaf and Fischer, Michael and Heinze, Johannes and Koopman, Johan and Schneider, Denis and Hassa, Christoph and Friedl, Markus and Carroni, Richard (2008) CHARACTERIZATION OF A REAL SIZE RETROFITTABLE CATALYTIC COMBUSTION SYSTEM. In: Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air, GT2008-50516. ASME Turbo Expo 2008: Power for Land, Sea and Air GT2008, 2008-06-09 - 2008-06-13, Berlin, Germany. ISBN 0-7918-3824-2.

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Abstract

This contribution describes the investigation of an engine-scale catalytic hybrid burner. The burner has been investigated under atmospheric conditions with preheated air and natural gas fuel in two operating points, with and without the catalytic reactor. By using the catalyst, an extension of the operating range to leaner stoichiometries has been demonstrated. Exhaust gas analysis performed directly downstream of the burner as well as in the burner far-field showed a NOx reduction potential of more than 20% when employing the catalyst. For the operation with the catalytic reactor, the flame stabilization process and dependency of NOx formation on the piloting gas ratio is described with results of OH chemiluminescence measurements. Radial temperature profiles taken with Coherent Anti Stokes Raman Scattering (CARS) suggest a reaction delay directly downstream of the catalytic section of the burner. Calculations with a perfectly stirred reactor model help to obtain a better understanding of the kinetics of the hot gases leaving the catalyst section.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:CHARACTERIZATION OF A REAL SIZE RETROFITTABLE CATALYTIC COMBUSTION SYSTEM
Authors:
AuthorsInstitution or Email of Authors
Diers, OlafUNSPECIFIED
Fischer, MichaelUNSPECIFIED
Heinze, JohannesUNSPECIFIED
Koopman, JohanUNSPECIFIED
Schneider, DenisUNSPECIFIED
Hassa, ChristophUNSPECIFIED
Friedl, MarkusAwtec, Zürich, Switzerland
Carroni, RichardAlstom, Birr, Switzerland
Date:9 June 2008
Journal or Publication Title:Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air, GT2008-50516
Refereed publication:Yes
In ISI Web of Science:No
ISBN: 0-7918-3824-2
Status:Published
Keywords:Gasturbine, Verbrennung, katalytische Verbrennung, NOx-Reduktion, Chemilumineszenz, CARS, Abgasanalyse, gas turbine, combustor, catalytic combustion, low NOx, NOx reduction chemiluminescence, CARS, gas analysis
Event Title:ASME Turbo Expo 2008: Power for Land, Sea and Air GT2008
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:2008-06-09 - 2008-06-13
Organizer:ASME
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Combustion Chamber Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Combustor
Deposited By: Olaf Diers
Deposited On:09 Jan 2009
Last Modified:27 Apr 2009 15:40

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