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Investigation of a Rectangular Rich Quench Lean Combustor Sector FREE

[+] Author Affiliations
Johannes W. Koopman, Christoph Hassa, Peter Griebel, Peter Theisen

German Aerospace Center, Cologne, Germany

Paper No. 98-GT-230, pp. V003T06A016; 9 pages
doi:10.1115/98-GT-230
From:
  • ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Stockholm, Sweden, June 2–5, 1998
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7864-4
  • Copyright © 1998 by ASME

abstract

The chemically reacting flow in the mixing and secondary zone of the improved RQL combustor sector of the DLR has been numerically investigated. The combustion model is adapted to meet experimental conditions and proves to underpredict temperature fluctuations. The pressure dependence of the NOx emission index for the quench and lean zone of the combustor can be described with an exponential factor of 0.66. Although the level of agreement between measured and calculated results is not consistently good, the code can be used to study the effect of various operating conditions as well as the effect of geometrical changes on the flow and the emissions.

Copyright © 1998 by ASME
This article is only available in the PDF format.

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