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FLOX® Combustion at High Power Density and High Flame Temperatures

[+] Author Affiliations
Oliver Lammel, Harald Schütz, Guido Schmitz, Rainer Lückerath, Michael Stöhr, Berthold Noll, Manfred Aigner

German Aerospace Center (DLR), Stuttgart, Germany

Matthias Hase, Werner Krebs

Siemens AG, Mülheim an der Ruhr, Germany

Paper No. GT2010-23385, pp. 1069-1081; 13 pages
  • ASME Turbo Expo 2010: Power for Land, Sea, and Air
  • Volume 2: Combustion, Fuels and Emissions, Parts A and B
  • Glasgow, UK, June 14–18, 2010
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4397-0 | eISBN: 978-0-7918-3872-3
  • Copyright © 2010 by ASME


In this contribution, an overview of the progress in the design of an enhanced FLOX® burner is given. A fuel flexible burner concept was developed to fulfill the requirements of modern gas turbines: high specific power density, high turbine inlet temperature, and low NOx emissions. The basis for the research work is numerical simulation. With the focus on pollutant emissions a detailed chemical kinetic mechanism is used in the calculations. A novel mixing control concept, called HiPerMix® , and its application in the FLOX® burner is presented. In view of the desired operational conditions in a gas turbine combustor this enhanced FLOX® burner was manufactured and experimentally investigated at the DLR test facility. In the present work experimental and computational results are presented for natural gas and natural gas + hydrogen combustion at gas turbine relevant conditions and high adiabatic flame temperatures (up to Tad = 2000 K). The respective power densities are PA = 13.3 MW/m2 /bar (NG) and PA = 14.8 MW/m2 /bar (NG + H2 ) satisfying the demands of a gas turbine combustor. It is demonstrated that the combustion is complete and stable and that the pollutant emissions are very low.

Copyright © 2010 by ASME



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