Accession Number : AD0661898

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

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Fedoseev,V. A.

Report Date : 02 JUN 1967

Pagination or Media Count : 10

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)

Descriptors :   (*FUEL SPRAYS, COMBUSTION), (*COMBUSTION, PHOTOGRAPHIC ANALYSIS), POWDER METALS, TWO PHASE FLOW, BURNING RATE, TEST METHODS, IGNITION, DYNAMICS, USSR

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE