A NOx Correlation Method for Gas Turbine Combustors Based on NOx Formation Assumptions PUBLIC ACCESS

[+] Author Affiliations
Géza Vermes

Westinghouse Electric Corp., Lester, PA

Paper No. 74-WA/GT-10, pp. V001T01A004; 11 pages
  • ASME 1974 Winter Annual Meeting: GT Papers
  • ASME 1974 Winter Annual Meeting: GT Papers
  • New York, New York, USA, November 17–22, 1974
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-8001-2
  • Copyright © 1974 by ASME


Based on a simplified description of the combustion process in the primary zone of a can type gas turbine combustor, a generalized NOx versus fuel flow relationship is proposed. Using this relationship and considerations based on chemical kinetics, the effect of combustor inlet pressure, inlet temperature and air residence time on NOx formation is investigated in industrial and automotive type combustion chambers. Data reported in the literature and original test work is cited to substantiate the validity of the assumptions. Based on the findings, a simple method is presented to predict NOx emissions of a gas turbine combustor under conditions which differ substantially from those of the test run. The assumptions may be used to assemble a model for a priori prediction of NOx emissions in a given combustion geometry.

Copyright © 1974 by ASME
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