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the influence of droplet evaporation on fuel-air mixing rate in a burnerExperiments involving combustion of a variety of hydrocarbon fuels in a simple atmospheric pressure burner were used to evaluate the role of droplet evaporation in the fuel/air mixing process in liquid fuel spray flames. Both air-assist atomization and pressure atomization processes were studied; fuel/air mixing rates were determined on the basis of cross-section average oxygen concentrations for stoichiometric overall operation. In general, it is concluded that droplets act as point sources of fuel vapor until evaporation, when the fuel jet length scale may become important in determining nonuniformities of the fuel vapor concentration. In addition, air-assist atomizers are found to have short droplet evaporation times with respect to the duration of the fuel/air mixing process, while for the pressure jet atomizer the characteristic evaporation and mixing times are similar.
Document ID
19770065327
Document Type
Conference Proceedings
Authors
Komiyama, K.
(Komatsu, Ltd. Tokyo, Japan)
Flagan, R. C.
(California Institute of Technology Pasadena, Calif., United States)
Heywood, J. B.
(MIT Cambridge, Mass., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Meeting Information
International Symposium on Combustion(Cambridge, MA)
Funding Number(s)
CONTRACT_GRANT: NGR-22-009-378
CONTRACT_GRANT: EPA-R-800729-02-0
CONTRACT_GRANT: E(11-1)-2680
Distribution Limits
Public
Copyright
Other