Ignition and combustion of pyrotechnic compositions based on micro- and nanoparticles of aluminum diboride in air flow in a two-zone combustion chamber
| Autor: | V. I. Sarab’ev, D. A. Yagodnikov, A. V. Voronetskii |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Pyrotechnic composition
Materials science 010304 chemical physics General Chemical Engineering Metallurgy Airflow General Physics and Astronomy Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Combustion 01 natural sciences 010406 physical chemistry 0104 chemical sciences law.invention Ignition system Afterburner Fuel Technology chemistry law Aluminium 0103 physical sciences Combustion chamber Gas generator |
| Zdroj: | Combustion, Explosion, and Shock Waves. 52:300-306 |
| ISSN: | 1573-8345 0010-5082 |
| Popis: | This paper presents the experimental study of ignition and combustion of micro- and nanoparticles of aluminum diboride as part of pyrotechnic energy-saturated compositions in a gas generator with an air afterburner chamber and the thermodynamic calculations of combustion of pyrotechnic compositions based on aluminum diboride in air. The discharge of the combustion products from the afterburner chamber is recorded on video. It is shown that replacing micron aluminum diboride by powdered diboride with a mass-average diameter of particles equal to ≈270 nm in the pyrotechnic composition and increasing the pressure in the afterburner chamber cause the combustion efficiency in air to increase by 5–20%. |
| Databáze: | OpenAIRE |
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