Open AccessAdvanced combustor design concepts to control NO{sub x} and air toxics. Quarterly report, [July--September 1996]
Author(s) -
David W. Pershing,
JoAnn S. Lighty,
Philip J. Smith,
Jennifer P. Spinti,
John M. Veranth,
Stefan P. Domino
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/428640
Subject(s) - char , combustion , combustor , oxy fuel , nuclear engineering , process engineering , coal , environmental science , reduction (mathematics) , waste management , computer science , engineering , chemistry , mathematics , geometry
Understanding the mechanisms of char-N oxidation and reduction is necessary for the accurate modeling of NO, formation from coal combustion. This statement is especially true for combustors where low- NO{sub x} combustion modification techniques have been applied because in such cases the fraction of total fuel- NO{sub x} coming from the char is very high. This study has focused on obtaining experimental data that can be used to evaluate char-N oxidation and reduction mechanisms. The ultimate goal is to use this knowledge to improve the NO{sub x} submodel in an existing computational fluid dynamics (CFD) code. Several key experimental results were outlined in the report for the quarter ending 6/96. In order to clarify certain conclusions, more data were collected and analyzed during the quarter ending 9/96. Results from these new data as well as important results not included in the 6/96 report are addressed here