A Correlation of Nitrogen Oxides Emissions With Gas Turbine Operating Parameters PUBLIC ACCESS

[+] Author Affiliations
G. L. Touchton, N. R. Dibelius

General Electric Co., Schenectady, NY

Paper No. 76-GT-14, pp. V01AT01A014; 6 pages
  • ASME 1976 International Gas Turbine and Fluids Engineering Conference
  • Volume 1A: General
  • New Orleans, Louisiana, USA, March 21–25, 1976
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7974-0
  • Copyright © 1976 by ASME


A semi-empirical correlation between nitrogen oxides emissions and combustor humidity, fuel to air ratio, pressure, and temperature is presented. The functional form of the pressure and humidity dependence is taken from the literature. The functional form of the fuel to air ratio and temperature dependence is deduced from consideration of a well-stirred constant residence time reactor model. The correlation is verified for tests of regenerative and simple-cycle constant speed gas turbines and for sea level tests of three different aircraft gas turbine engines. The residual error is approximately ± 10 percent of the measured emission values over the respective operating ranges. The correlation may be used to correct measured NOx emission levels to standard conditions and to predict emission levels from future designs.

Copyright © 1976 by ASME
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