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NOx formation from the combustion of monodisperse n-heptane sprays doped with fuel-nitrogen additivesA series of experiments with simulated synthetic fuels were conducted in order to investigate the effect of droplet size on the conversion of fuel-nitrogen to NOx. Pyridine and pyrrole were added to n-heptane as nitrogen-containing additives and burned as monodisperse fuel droplets under various operating conditions in a spray combustion facility. The experimental results indicate that under stoichiometric and fuel-rich conditions, reducing the droplet size increases the efficiency of fuel-N conversion to NOx. This observation is associated with improved oxidation of the pyrolysis fragments of the additive by better oxygen penetration through the droplet flame zone. The dominant reactions by which fuel-N is transformed to NOx were also considered analytically by a premixed laminar flame code. The calculations are compared to the small droplet size results.
Document ID
19890055324
Document Type
Reprint (Version printed in journal)
Authors
Sarv, Hamid (Drexel Univ. Philadelphia, PA, United States)
Cernansky, Nicholas P. (Drexel University Philadelphia, United States)
Date Acquired
August 14, 2013
Publication Date
June 1, 1989
Publication Information
Publication: Combustion and Flame
Volume: 76
ISSN: 0010-2180
Subject Category
PROPELLANTS AND FUELS
Funding Number(s)
CONTRACT_GRANT: NAG3-382
Distribution Limits
Public
Copyright
Other