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Improvement of Gas Turbine Injection Systems by Combined Experimental/Numerical Approach

[+] Author Affiliations
G. Riccio, P. Adami, F. Martelli

University of Florence, Florence, Italy

D. Cecchini, L. Carrai

ENEL Produzione – Ricerca, Pisa, Italy

Paper No. GT2002-30101, pp. 639-647; 9 pages
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 1: Turbo Expo 2002
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3606-1 | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME


An aerodynamic study for the premixing device of an industrial turbine gas combustor is discussed. The present work is based on a joint application of numerical CFD and experimental investigation tools in order to verify and optimize the combustor gaseous fuel injection system. The objective is the retrofit of an old generation gas turbine combustion chamber that is carried out considering new targets of NOx emission keeping the same CO and combustion stability performances. CFD has been used to compare different premixing duct configurations for improved mixing features. Experimental test has been carried out in order to assess the pollutant emissions, flame stability and pattern factor characteristics of the full combustion chamber retrofitted with the modified injection system.

Copyright © 2002 by ASME
Topics: Gas turbines



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