A large operational envelope is a key requirement for modern gas turbines. Fuel staging is used here to improve the part load performance of an enhanced FLOX® type combustor. A swirl-stabilized pilot stage is integrated in the FLOX® burner and the results of high pressure lab-scale experiments at system relevant conditions are presented. The operational envelope of the piloted system could be extended by approximately 10%. Pressure scaling and variations of air preheat temperature and jet velocity describe fundamental characteristics of the piloted system. OH* chemiluminescence imaging is used to investigate flame shapes and the effect of the interacting flames. Emissions and pressure pulsations define limits, and optimum operation conditions of the combustor and show the influence of part load relevant parameters.
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ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
June 11–15, 2012
Copenhagen, Denmark
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4468-7
PROCEEDINGS PAPER
Part-Load Operation of a Piloted FLOX® Combustion System
Tim Roediger,
Tim Roediger
German Aerospace Center (DLR), Stuttgart, Germany
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Oliver Lammel,
Oliver Lammel
German Aerospace Center (DLR), Stuttgart, Germany
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Manfred Aigner,
Manfred Aigner
German Aerospace Center (DLR), Stuttgart, Germany
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Christian Beck,
Christian Beck
Siemens AG, Mülheim/Ruhr, Germany
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Werner Krebs
Werner Krebs
Siemens AG, Mülheim/Ruhr, Germany
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Tim Roediger
German Aerospace Center (DLR), Stuttgart, Germany
Oliver Lammel
German Aerospace Center (DLR), Stuttgart, Germany
Manfred Aigner
German Aerospace Center (DLR), Stuttgart, Germany
Christian Beck
Siemens AG, Mülheim/Ruhr, Germany
Werner Krebs
Siemens AG, Mülheim/Ruhr, Germany
Paper No:
GT2012-69006, pp. 737-748; 12 pages
Published Online:
July 9, 2013
Citation
Roediger, T, Lammel, O, Aigner, M, Beck, C, & Krebs, W. "Part-Load Operation of a Piloted FLOX® Combustion System." Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. Volume 2: Combustion, Fuels and Emissions, Parts A and B. Copenhagen, Denmark. June 11–15, 2012. pp. 737-748. ASME. https://doi.org/10.1115/GT2012-69006
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