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A Semi-Analytical Approach to Emissions Prediction in Gas Turbine Combustors FREE

[+] Author Affiliations
Bruno Facchini, Giovanni Ferrara, Paolo Mazzilli

University of Florence, Florence, Italy

Paper No. 98-GT-216, pp. V003T06A009; 8 pages
doi:10.1115/98-GT-216
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

An application of a simplified combustion model to pollutant emissions prediction in gas turbines is presented here. A critical analysis of the Rizk and Mongia semi-analytical model is conducted, and some corrections are accomplished to obtain a better agreement with experimental data. Special attention is devoted to the temperature equation, which is carefully modified, and to the schematization of several kinds of combustors. The simulation of some conventional pollutant reduction techniques, such as inert injection or exhaust gases re-circulation, is conducted with this corrected model. The results show a good agreement with experimental data both in conventional, and in innovative combustors, like Lean-Premixed or Rich-Lean concepts. The model needs a very short computation time and is likely to allow a simultaneous solution of chemical and fluid-dynamic aspect of the combustor.

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

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