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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v2.i1-6.290
pages 469-477

THE PREMIXED LAMINAR FLAMES IN THE BORON DUST CLOUDS

S. V. Goroshin
Department of Physics, State University, Odessa, Ukraine, 270100
N. D. Ageyev
Analog Co., Odessa, Ukraine
Yuriy L. Shoshin
Department of Physics, State University, Odessa, Ukraine, 270100
V. G. Shevchuk
Department of Physics, State University, Odessa, Ukraine, 270100

ABSTRACT

The use of stabilized Bunsen-type premixed dust flame for the investigation of boron dust clouds combustion has been proposed. The suspensions are formed by crystal micron-size (mean diameter is 6 μm) boron particles. The experiments were conducted with the aid of modified equipment formerly used for an aluminum dust flame investigation [Goroshin, Ageyev et al., 1989]. The Bunsen-type boron dust flame becomes stable on leaving a water-cooled conical nozzle with the help of a circular propane-oxygen flame. Throughout the process, the volume of the fuel mixture through the stabilizer is no more than 10% of the gas-dust flow. Some experiments which had to define the flame speed in boron suspensions in pure oxygen were held with the help of flames propagated in open-ended tubes. Flame speed dependencies on a mass boron concentration, gas mixture composition and initial dust temperature were defined.


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