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Experimental Investigation of an Atmospheric Rectangular Rich Quench Lean Combustor Sector for Aeroengines FREE

[+] Author Affiliations
Peter Griebel, Michael Fischer, Christoph Hassa, Eggert Magens, Henning Nannen, Adolf Winandy

Institute for Propulsion Technology, German Aerospace Research Establishment, Cologne, Germany

Antigoni Chrysostomou, Ulrich Meier, Winfried Stricker

Institute for Physical Chemistry of Combustion, German Aerospace Research Establishment, Stuttgart, Germany

Paper No. 97-GT-146, pp. V002T06A017; 8 pages
doi:10.1115/97-GT-146
From:
  • ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Orlando, Florida, USA, June 2–5, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7869-9
  • Copyright © 1997 by ASME

abstract

In this research work the potential of rich quench lean combustion for low emission aeroengines is investigated in a rectangular atmospheric sector, representing a segment of an annular combustor. For a constant design point (cruise) the mixing process and the NOx formation are studied in detail by concentration, temperature and velocity measurements using intrusive and non-intrusive measuring techniques.

Measurements at the exit of the homogeneous primary zone show relatively high levels of non-thermal NO. The NOx formation in the quench zone is very low due to the quick mixing of the secondary air achieved by an adequate penetration of the secondary air jets and a high turbulence level. The NOx and CO emissions at the combustor exit are low and the pattern factor of the temperature distribution is sufficient.

Copyright © 1997 by ASME
This article is only available in the PDF format.

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