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International Journal of Energy for a Clean Environment
SJR: 0.195 SNIP: 0.435 CiteScore™: 0.74

ISSN Imprimer: 2150-3621
ISSN En ligne: 2150-363X

International Journal of Energy for a Clean Environment

Précédemment connu sous le nom Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.v4.i3.40
30 pages

NOx FORMATION IN GRATE COMBUSTION OF WOOD

J. J. Saastamoinen
VTT Processes, Box 1603, 40101 Jyvaskyla, Finland
R. Taipale
VTT Processes, Box 1603, 40101 Jyvaskyla, Finland

RÉSUMÉ

NOx formation in a bed of fuel particles is studied by modeling and by experiments with a continuously weighted pot furnace. The bed was ignited at the top and ignition front propagated down against the airflow. A sharp decrease in NO was usually detected just after the ignition wave reached the bottom of the bed. There was a peak at the end, when practically all organic mass had been combusted. A numerical model for the combustion and gasification in the bed including NO formation was developed. The measured NO emissions were interpreted by model calculations. Different factors such as air rate, fuel moisture, and particle size affecting NO formation is studied, and ways to decrease NO formation are discussed.


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