NDLI: Experimental Methods for Studying the Combustion of Granular Powders in a Broad Range of Process Parameters

Content Provider	Springer Nature Link
Author	Khristenko, Yu. F.
Copyright Year	2001
Abstract	The combustion of granular powders is studied in a broad range of loading densities. The nontraditonal design of manometric bombs and the model ballistic installations on which the conditions close to a real detonation were simulated were used. It was established experimentally that the instability of a shot from a light–gas gun is caused by poor reproducibility of the ignition and combustion of powders fired at a loading density of Δ≲ 0.5 g/cm3. It is shown that the differences between the specific features of gas formation upon combustion of fine tubular and multiperforated powders under conditions of a classical manometric bomb (Δ≤ 0.3 g/cm3) and in a real shot (Δ≥ 0.6 g/cm3) are connected not only with the nonstationary character of combustion, but also with the dependence of the shape of a burning grain (area of the burning surface) on experimental conditions and, in particular, on the loadng density. It is shown that the use of a stepwise dependence of the factor in a geometrical law of combustion allows one to obtain a good agreement between the experimental and calculated pressure curves, including the ignition period, which makes it possible to describe the combustion of combined charges more correctly.
Starting Page	72
Ending Page	77
Page Count	6
File Format	PDF
ISSN	00105082
Journal	Combustion, Explosion and Shock Waves
Volume Number	37
Issue Number	1
e-ISSN	15738345
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2001-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics, Fluids, Thermodynamics Mechanics Engineering Vibration, Dynamical Systems, Control Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Physics and Astronomy Fuel Technology Chemical Engineering Energy Engineering and Power Technology

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