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TECHNICAL PAPERS

Local Furnace Data and Modeling Comparison for a 600-MWe Coal-Fired Utility Boiler

[+] Author and Article Information
Yuh-Long Hwang

Dynegy Marketing and Trade, Houston, TXe-mail: yuh-long.hwang@dynegy.com

John R. Howell

Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712e-mail: jhowell@mail.utexas.edu

J. Energy Resour. Technol 124(1), 56-66 (Mar 25, 2002) (11 pages) doi:10.1115/1.1447543 History: Received January 05, 2000; Revised June 27, 2001; Online March 25, 2002
Copyright © 2002 by ASME
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References

Figures

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Gas temperature profiles for burner tilt angles between 0 (Test 10D) and −20 deg (Test 10A); burner elevations 1–5
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Stack NOx emissions (dry) for various overfire air damper settings; burner elevations 2–6
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Temperature comparisons between measurements and predictions at FL 4; burner elevations 1–5
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Wall irradiation comparisons between measurements and predictions for burner elevations 1–5 and 2–6
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Wall irradiation comparisons among models for burner elevations L-4, 1–5, and 2–6; wall emissivities of ε=0.38 and 0.6
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Gas temperature contours (K) for models for burner elevations L-4 and 2–6 at midplane between north and south walls; wall emissivity ε=0.38
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Flow velocity vectors for burner elevations L-4 and 2–6 models at the midplane between the north and south walls; ε=0.38
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Gas temperature profiles at FL 8.6, 9, and 10 for burner elevations 2–6
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Gas temperature profiles at FL 8.6, 9, and 10 for burner elevations 1–5
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Gas temperature profiles at FL 8.6, 9, and 10 for burner elevations 1 and 4–6
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Heat flux to the furnace water wall for different burner configurations
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Stack NOx emissions (dry) for different burner elevations
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Gas temperature profile comparisons for 3.5 percent excess O2 (Test 13A) and 2.5 percent excess O2 (Test 13B); burner elevations 1–5
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Stack NOx emissions (dry) for 3.5 percent excess O2 and 2.5 percent excess O2; burner elevations 1–5
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Averaged furnace gas temperatures among models for burner elevations L-4, 1–5, and 2–6; wall emissivities of ε=0.38 and 0.6
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Windbox, nozzles, and firing circle of burners
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Temperature comparisons between measurements and predictions at FL 10; burner elevations 1–5
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Temperature comparisons between measurement and prediction at FL 9; burner elevations 1–5
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Temperature comparisons between measurements and predictions at FL 8.6; burner elevations 1–5
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Temperature comparisons between measurements and predictions at FL 7, 8, and 8.3; burner elevations 1–5
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Temperature comparisons between measurements and predictions at FL 6; burner elevations 1–5

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