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Gas Turbine Combustor Design Parameter Analysis for Soot Reduction Using CFD FREE

[+] Author Affiliations
D. Scott Crocker

CFD Research Corporation, Huntsville, AL

Rahul Puri

AlliedSignal Engines, Phoenix, AZ

Paper No. 99-GT-240, pp. V002T02A038; 9 pages
doi:10.1115/99-GT-240
From:
  • 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

abstract

AlliedSignal’s F124 combustor is analyzed using CFD as part of an effort to improve the design of the combustor. A reduction of soot emissions, without negative impact on other performance features such as liner life and lean stability, was the primary objective. The existing F124 combustor (TFE1042) was modeled using the commercial CFD-ACE+ software package to validate the CFD results and provide a basis for comparison for the modified design. Two design of experiment (DOE) matrices of the redesigned combustor were analyzed using CFD modeling. The results of the CFD solutions led to the selection of two configurations for combustor rig experimental testing. The test configurations were selected based on CFD predicted trends for smoke, ignition, lean stability and pattern factor. Engine tests demonstrated a smoke number reduction from more than 40 to less than 10. Lean stability was degraded as a result of a leaner primary zone, but adequate lean stability margin was maintained.

Copyright © 1999 by ASME
This article is only available in the PDF format.

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