Further Development of an Advanced Low-NOx Combustion System and its Potential Application to Coal-Fired Utility Boilers

[+] Author and Article Information
T. M. Sommer

Fossil Power Generation Division, Babcock and Wilcox Company, Barberton, OH

S. A. Johnson, G. D. Lindstrom

Research and Development Division, Babcock and Wilcox Company, Alliance, OH

J. Eng. Power 102(3), 684-691 (Jul 01, 1980) (8 pages) doi:10.1115/1.3230326 History: Received August 20, 1979; Online September 28, 2009


The Babcock & Wilcox Company (B&W), under contract with the Electric Power Research Institute (EPRI), has designed and tested an advanced staged combustion system on a four million Btu/hr (4.2-million kJ/hr) scale. Results of these tests showed the potential to limit the emission of nitrogen oxides from coal-fired boilers to 100–150 ppm and identified a new kinetic mechanism for NO destruction. Subsequently, the correlations and initial design parameters derived from the small-scale tests were applied to a conceptual commercial system to ensure that this concept was indeed commercially feasible. These design considerations and the favored preliminary arrangement of a low-NOx combustion system will be discussed herein. Before commercializing this concept, however, further research is necessary. Testing on a nominal 50-million Btu/hr (53-million kJ/hr) prototype system is now in progress. Initial results indicate that NOx emission correlations and design parameters will need only slight revisions before the concept is ready for a field demonstration.

Copyright © 1980 by ASME
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