Optimization of the Mixing Quality of a Real Size Gas Turbine Burner With Instantaneous Planar Laser-Induced Fluorescence Imaging FREE

[+] Author Affiliations
Hanno Krämer, Friedrich Dinkelacker, Alfred Leipertz

University of Erlangen, Erlangen, Germany

Gerwig Poeschl, Michael Huth, Martin Lenze

Siemens AG, Mülheim, Germany

Paper No. 99-GT-135, pp. V002T02A027; 8 pages
  • ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Indianapolis, Indiana, USA, June 7–10, 1999
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7859-0
  • Copyright © 1999 by ASME


For lean premixed combustion the NOx emission can be reduced by optimizing the degree of fuel-air mixedness. Since both temporal and spatial mixture variations are of importance, the time resolved planar laser technique of acetone tracer-LIF (laser-induced fluorescence) is used to characterize the mixing quality in an one-to-one scale segment of a Siemens ring shaped gas turbine combustor. Variations of the combustor geometry and of additional mixing devices have been tested, showing the potential to increase the mixing quality. Subsequent tests in a fired atmospheric test rig confirm the influence of the mixing quality, leading to up to 30% further reduction of the NOx emissions.

Copyright © 1999 by ASME
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