Webof the heat of combustion of selected new RDX-based propellants were carried out and their combustion characteristics were also obtained by thermochemical calculations. WebKeywords: RDX-based propellants, combustion heat, thermochemical model 1 Introduction The theoretical determination of the combustion parameters and the equilibrium
STOICHIOMETRY AND THERMOCHEMISTRY OF …
Webin the RDX decomposition is a concerted symmetric triple fission of RDX ring. Based on the reported heat of formation of 33.6 kcal/mol for methylenenitramine (MN) by Melius and Binkley,21 ZHL estimated the endothermicity to be 80 kcal/ mol for the concerted ring fission (which compares with the N-N bond dissociation energy of 48 kcal/mol ... WebRDX 和NGU 对叠氮硝胺发射药动态燃烧稳定性的影响. base gun propellant was also studied for reference. Influence of composition change of azidonitramine gun propellants on the. early phase combustion characteristicꎬ the rising process of chamber pressure and the pressure fluctuation inside the cham￣. 30％ ( mass fraction ... chin cleft surgery
RDX 和NGU 对叠氮硝胺发射药动态燃烧稳定性的影响 _百度文库
Webare examples of high explosives. RDX is a military explosive with a detonation velocity as high as 27,000 fps. Interestingly, stoichiometry and energy considerations do not really distinguish the two types of explosives; both release large volumes of gas, and significant amounts of heat during the combustion. WebFor description of the chemical structure of RDX flames, key reactions and species are selected by numerical solution of the system of equations describing one–dimensional flows of a viscous, heat–conducting, reacting gas at pressures of 0.5—90 atm. The kinetic mechanism consists of 263 elementary steps and 43 species. Literature data on rate … The heat of combustion is the gross heat in terms of calories per gram or kilocalories per mole of the explosive. The gross heat of combustion is measured by igniting samples of an explosive in an oxygen-filled (5 atmospheres) standard calorimeter bomb submerged in water, and then recording the rise … See more This paper was presented at the 27th International Pyrotechnics Seminar, 16 – 21 July 2000 in Grand Junction, CO., and is an update on the PEP-I Wall Chart that was presented at the Eighteenth International Pyrotechnics Seminar, … See more It is necessary for comprehension of further discussion to define terms as they apply in this document. Properties: Properties of explosives reported herein are measurable physical attributes typical of a single crystal of … See more To be classified as an explosive, a material must: 1. Satisfy basic conditions with respect to its rate of chemical reaction. 2. The reaction must not take place until a suitable initiation stimulus is applied. 3. The reaction must be … See more grand canyon geologic history