In the present paper, a computational model is used to simulate the aero-dynamic, thermal, and chemical conditions inside an arch-fired coal boiler. The model is based on the Eulerian-Eulerian concept, in which Eulerian conservation equations are solved both for the gas and the particulate phases. A NOx formation and destruction submodel is used to calculate the local concentration of NO. The model is used to simulate a range of operating conditions in an actual, 350 MW, arch-fired boiler, with the aim of reducing, using primary measures, the emissions of NOx. The model results shed some light on the relevant NOx-formation mechanisms under the several operating conditions. Furthermore, they correlate well quantitatively with the available field measurements at the plant, and reproduce satisfactorily the tendencies observed under the different operating modes.
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October 1999
Research Papers
Computational Evaluation of Low NOx Operating Conditions in Arch-Fired Boilers
N. Fueyo,
N. Fueyo
School of Engineering, University of Zaragoza, Spain, Maria de Luna 3, 50015, Zaragoza, Spain
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V. Gambo´n,
V. Gambo´n
LITEC, Laboratory for Combustion Research, Zaragoza, Spain
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C. Dopazo,
C. Dopazo
School of Engineering, University of Zaragoza, Spain, Maria de Luna 3, 50015, Zaragoza, Spain
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J. F. Gonza´lez
J. F. Gonza´lez
Direccio´n de Ingenieri´a e I+D, GRUPO ENDESA, Madrid, Spain
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N. Fueyo
School of Engineering, University of Zaragoza, Spain, Maria de Luna 3, 50015, Zaragoza, Spain
V. Gambo´n
LITEC, Laboratory for Combustion Research, Zaragoza, Spain
C. Dopazo
School of Engineering, University of Zaragoza, Spain, Maria de Luna 3, 50015, Zaragoza, Spain
J. F. Gonza´lez
Direccio´n de Ingenieri´a e I+D, GRUPO ENDESA, Madrid, Spain
J. Eng. Gas Turbines Power. Oct 1999, 121(4): 735-740 (6 pages)
Published Online: October 1, 1999
Article history
Received:
April 1, 1999
Online:
December 3, 2007
Citation
Fueyo, N., Gambo´n, V., Dopazo, C., and Gonza´lez, J. F. (October 1, 1999). "Computational Evaluation of Low NOx Operating Conditions in Arch-Fired Boilers." ASME. J. Eng. Gas Turbines Power. October 1999; 121(4): 735–740. https://doi.org/10.1115/1.2818534
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