Accession Number : AD0679516

Title :   SELF-IGNITION AND THE INDUCTION PERIOD OF A DROP OF LIQUID FUEL,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Agafonova,F. A. ; Gurevich,M. A. ; Tarasova,E. F.

Report Date : 07 JUN 1968

Pagination or Media Count : 23

Abstract : The ignition of hexane, n-octane, and cetane droplets (0.0014-0.002 m in diameter) was studied by suspending the droplets from a quartz filament in a vertical tube through which preheated air was passed at velocities of 1.3-4.9 m/sec. The ignition process was studied by motion picture photography and induction time vs air temperature plots were obtained. A theoretical analysis yielded a formula for the dimensionless induction time. It is concluded that the studied fuels cannot ignite at the wet bulb temperature but they always ignite at a lower temperature. The induction time changes with the temperature of the medium faster than the temperature gradient across the droplet-medium interphase. (Author)

Descriptors :   (*FUELS, *IGNITION), DROPS, HYDROCARBONS, EVAPORATION, MOTION PICTURE PHOTOGRAPHY, EQUATIONS, USSR

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE