Unstable regimes of thermite system combustion
This article investigates the influence of the initial thermal impulse, the heat transfer conditions to the surrounding medium, and the forced change in the heat balance on the regularity of unstable combustion in thermite systems. The initial thermal impulse to initiate the thermite system was given by a thermal wave of the igniter fuel. Results of tests performed on an iron-zirconium thermite model (70% dilution by reaction products) initiated by a chromium-zirconium thermite of stoichiometric composition are presented. The nonstationary changeover of combustion regimes analyzed as the conditions for progress of the process varied was realized near the stability limits of the different regimes. It is shown that the passage from the stationary to the self-oscillatory regime occurs by a jump.
- Research Organization:
- Chernogolovka
- OSTI ID:
- 6635725
- Journal Information:
- Combust., Explos. Shock Waves (Engl. Transl.); (United States), Vol. 19:2; Other Information: Trans. from Fizike Goreniya i Vzryva, Mar 1983, Vol. 19, No. 2, pp. 30-36
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHROMIUM COMPOUNDS
COMBUSTION KINETICS
IRON COMPOUNDS
ZIRCONIUM COMPOUNDS
DILUTION
FUELS
HEAT TRANSFER
IGNITION
OSCILLATIONS
PULSES
SIMULATION
STABILITY
STOICHIOMETRY
TESTING
CHEMICAL REACTION KINETICS
ENERGY TRANSFER
KINETICS
REACTION KINETICS
TRANSITION ELEMENT COMPOUNDS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry