Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Central European Journal of Energetic Materials

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Thermochemical Properties, Ballistic Parameters and Sensitivity of New RDX-based Propellants

Hara Marcin, Trzciński Waldemar A., Cudziło Stanisław, Szala Mateusz, Chyłek Zbigniew, Surma Zbigniew

Central European Journal of Energetic Materials

2020

Vol. 17, no. 2

223--238

New RDX-based propellants were obtained and investigated. The heat of combustion was determined in a calorimeter and the pressure history was measured in a manometric bomb. Ballistic parameters, such as maximum pressure, propellant force and covolume of gaseous products, as well as the dynamic vivacity, were determined based on the experimental results. The sensitivities to friction and impact were determined for the tested propellants. Calculations of the ballistic characteristics (the heat of combustion, propellant force, covolume and ratio of specific heats of the combustion products, and ballistic energy) were performed. The theoretical parameters were compared with the experimental data and quite good agreement was found between them. The largest differences occurred in the cases of propellant force and covolume. This disagreement is explained. An analysis of the test results and a comparison of the parameters of the RDX-based propellants and the JA2 propellant allowed the possibility of using the tested propellants in ammunition to be assessed.

Experimental and Theoretical Investigation of the Heat of Combustion of RDX-based Propellants

Hara Marcin, Trzciński Waldemar A.

Central European Journal of Energetic Materials

2019

Vol. 16, no. 3

399--411

The main goal of the present work was to check whether it is possible to use a thermochemical model to predict the heat of combustion of new RDX-based propellants and to determine which calculation conditions ensure that the calculated heat obtained is close to the calorimetric value. Calorimetric measurements of the heat of combustion of selected new RDX-based propellants were carried out and their combustion characteristics were also obtained by thermochemical calculations. The combustion heats determined experimentally and theoretically were compared. On the basis of an analysis of the results obtained, the influence of the temperature of “freezing” of the composition of the combustion products on the calculated combustion heat was checked. The ballistic parameters of the tested propellants were also calculated.