Determination of Thermodynamic Characteristics of Combustion Products of Boron-Containing Solid Fuels
A. V. Fedorychev, Yu. M. Milekhin, A. A. Abramov
Soyuz Federal Center of Dual Technologies, Dzerzhinskii, Russia
Keywords: gas generator, model solid propellant, combustion products, thermodynamic characteristics, gas constant, adiabatic index
Abstract
Tests of model solid propellants based on aluminum dodecaboride AlB12 revealed significant discrepancies between the experimental values of the exhaust coefficient and the temperature of the primary combustion products in the model gas generator chamber compared to their values calculated from thermodynamic equilibrium conditions. A computational and experimental method for determining the thermodynamic characteristics of the primary combustion products for model boron-containing propellants characterized by a low content of oxidizing elements (α < 0.2) is proposed. The method involves experimentally determining the combustion product temperature and exhaust coefficient, followed by calculating the gas constant and adiabatic index of the combustion products. The ranges of possible values of the thermodynamic characteristics and their pressure dependences are determined.
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