Ignition of condensed material

Tomsk. Translated from Fizika Goreniya i Vzryva, Vol. 24, No, 3, pp. 39–41, May–June, 1988.     

Ignition of a condensed material with a disintegrated near-surface layer

Tomsk. Translated from Fizika Goreniya i Vzryva, Vol. 26, No. 2, pp. 18–23, March–April, 1990.     

Ignition of a hot sheet of condensed material through an inert shield

Tomsk. Translated from Fizika Goreniya i Vzryva, Vol. 26, No. 2, pp. 8–18, March–April, 1990.     

Ignition of condensed substances in a hot gas

Summary A study of the ignition of pyroxylin, polyvinyl nitrate, barium azide, and nitrostarch in a hot gas in the temperature range 200–600° C with induction periods of 0.1–100 sec has shown that the laws of the process are determined by exothermic reactions in the condensed phase and may be quantitatively described on the basis of the modern thermal theory. The theoretical relations can be used to determine the effective kinetic parameters of the high-temperature high-speed reactions of thermal decomposition of condensed substances from ignition experiments.Fizika Goreniya i Vzryva, Vol. 3, No. 4, pp. 512–526, 1967     

Ignition of condensed material by a heat flux pulse across an opaque shield having a high thermal conductivity

Tomsk. Translated from Fizika Goreniya i Vzryva, Vol. 25, No. 6, pp. 3–9, November–December, 1989.     

Ignition of condensed systems interacting through a layer of high-melting product

The functional dependence of the ignition delay time on the main parameters of the problem is determined for condensed systems interacting through a layer of high-melting product by a power law. A formula for determining the ignition temperature from the equality between the external heat flux and integral heat evolution in a chemical reaction in a stationary combustion wave with temperature equal to the ignition temperature is proposed and substantiated. It is shown that at a surface temperature below the ignition temperature the heating can be considered inert and the duration of this stage makes up the bulk of the delay time.Institute of Structural Macrokinetics, Russian Academy of Sciences, Chernogolovka 142432. Tranalated from Fizika Goreniya i Vzryva, Vol. 31, No. 4, pp. 3–9, July–August, 1995.     

Ignition Time Delay of polyacrylic fuels-ammonium perchlorate condensed mixtures

Ignition time delay of condensed mixtures containing various polyacrylic fuels and NH₄ClO₄ were measured using hot-plate technique at several temperatures. The adiabatic theory of explosion assuming condensed phase exothermic reactions was used to evaluate the activation energy of ignition. Activation energy of ignition has been found to be dependent on the decomposition characteristic of the fuel component.