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Droplet size effects on NO/x/ formation in a one-dimensional monodisperse spray combustion systemA one-dimensional monodisperse aerosol spray combustion facility is described and experimental results of post flame NO/NO(x) emissions are presented. Four different hydrocarbon fuels were studied: isopropanol, methanol, n-heptane, and n-octane. The results indicate an optimum droplet size in the range of 48-58 microns for minimizing NO/NO(x) production for all of the test fuels. This NO(x) behavior is associated with droplet interactions and the transition from diffusive type of spray burning to that of a prevaporized and premixed case. Decreasing the droplet size results in a trend of increasing droplet interactions, which suppresses temperatures and reduces NO(x). This trend continues until prevaporization effects begin to dominate and the system tends towards the premixed limit. The occurrence of the minimum NO(x) point at different droplet diameters for the different fuels appears to be governed by the extent of prevaporization of the fuel in the spray, and is consistent with theoretical calculations based on each fuel's physical properties.
Document ID
19830044050
Document Type
Conference Paper
Authors
Sarv, H. (Drexel Univ. Philadelphia, PA, United States)
Nizami, A. A. (Drexel Univ. Philadelphia, PA, United States)
Cernansky, N. P. (Drexel University Philadelphia, PA, United States)
Date Acquired
August 11, 2013
Publication Date
October 1, 1982
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Report/Patent Number
ASME PAPER 82-JPGC-GT-10
Meeting Information
Joint Power Generation Conference(Denver, CO)
Funding Number(s)
CONTRACT_GRANT: NAG3-1
Distribution Limits
Public
Copyright
Other