Accession Number:

AD0661898

Title:

TRACE METHOD AND ITS APPLICATION TO THE INVESTIGATION OF DISPERSED-FUEL COMBUSTION KINETICS,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1967-06-02

Pagination or Media Count:

10.0

Abstract:

In 1957-1958, the author presented and experimentally verified an original method of investigating the combustion kinetics of dispersed metallic fuels and the evaporation and combustion of droplets and particles by the so-called trace method. The method is explained as follows If a small particle droplet is introduced into a hot 1000C airstream flowing inside a glass pipe, it reaches the flow velocity in a very short 0.00001 sec time interval and becomes stationary relative to the air. The particle droplet is progressively heated to the ignition temperature. During combustion it moves with the flow, leaving a trace which will be more or less bright, depending on the burning velocity. Various combustion characteristics, such as the change in diameter and surface of the particle as a function of time, may be determined by trace photography. The length of the trace may be measured with a photometer. Author

Subject Categories:

  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE