Transition of Convective Combustion into Low-Velocity Detonation in a Low Porous Stochiometric Mixture of Ammonium Perchlorate with Polymethyl Methacrylate in a Device with Mass Ejection

The results of experiments carried out in a laboratory pulsed energy projectile (PEP) device with a high-density charge made by pressing from a fuel mixture and initiated by a low-velocity detonation wave are presented. The muzzle velocity, maximum pressure in the chamber, and the completeness of fuel conversion are determined according to the following measured characteristics: the thrust impulse, pressure diagram in the chamber, and the acceleration trajectory of the PEP. A mixture of ammonium perchlorate with 15% polymethyl methacrylate is used. Several experiments are carried out on a mixture with the addition of 20% finely ground hexogen (RDX). The charge density, the size of the ammonium perchlorate particles, and the mass of the charge and the PEP body are varied. The studied mixture ensures stable operation of the PEP device and makes it possible to obtain reproducible values of the thrust impulse and PEP speed at the maximum pressure not exceeding 1.2 GPa. The regularities that connect the characteristics being determined with the properties of the charge are established. The conditions are found under which the maximum completeness of the conversion is achieved, which in this study is 75-80%. Ways of further increasing the completeness of the transformation are outlined.

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Mixed Fuel in the Low-Velocity Detonation Mode

Ермолаев

Roman’kov

Сулимов

et al. 2021

Russ. J. Phys. Chem. B

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Model of Convective Burning of Granular Mixtures Used in SHS

Belyaev,

Ermolaev

2023

Russ. J. Phys. Chem. B

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Transition of Convective Combustion into Low-Velocity Detonation in a Low Porous Stochiometric Mixture of Ammonium Perchlorate with Polymethyl Methacrylate in a Device with Mass Ejection

Cited by 2 publications

References 5 publications

Mixed Fuel in the Low-Velocity Detonation Mode

Mixed Fuel in the Low-Velocity Detonation Mode

Model of Convective Burning of Granular Mixtures Used in SHS

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