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Prediction of NOx Emissions FREE

[+] Author Affiliations
G. D. Lewis

Pratt & Whitney Aircraft, West Palm Beach, FL

Paper No. 81-GT-119, pp. V002T06A023; 5 pages
doi:10.1115/81-GT-119
From:
  • ASME 1981 International Gas Turbine Conference and Products Show
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Houston, Texas, USA, March 9–12, 1981
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7962-7
  • Copyright © 1981 by ASME

abstract

A procedure has been developed for predicting the formation of NOx in gas turbine combustion systems operating at various conditions and on a variety of fuels, if the NOx produced by that engine is known for any one combination of fuel and operating condition. The predictions are based on a fundamental relationship between NOx formation and flame temperature with empirical adjustments for the special cases of fuel changes and water injection. Engine data indicate that the predictions are accurate within the data scatter limits that are normally encountered in engine field measurements. This work is not intended as a new kinetic model of NOx formation but rather as a useful tool for the engineer who has to predict what his engine will do under conditions where it has not yet been tested. It divides the NOx formation process into factors measurable by the engineer, i.e., flame temperature, pressure, and fuel flow rate, and shows how each of these contributes to the overall NOx in a predictable way.

Copyright © 1981 by ASME
This article is only available in the PDF format.

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