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

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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 msec. 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

Author(s):
Agafonova, F. A. ; Gurevich, M. A. ; Tarasova, E. F.
Author Organization(s):
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Supplementary Note:
Edited machine trans. of Teplo- i Massoperenos (USSR) v4 p241-251 1966.
Annotation:
Self-ignition and the induction period of a drop of liquid fuel--Translation.
Pagination:
0023

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FTD-MT-24-130-68
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*FUELS, *IGNITION), DROPS, HYDROCARBONS, EVAPORATION, MOTION PICTURE PHOTOGRAPHY, EQUATIONS, USSR
Field(s)/Group(s):
Combustion and Ignition
Keyword(s):
*DROPS, HEXADECANE, HEXANE, HEXANES (6 C), OCTANE, OCTANES (8 C)
Report Date:
1968 Jun 07