Induction period in the ignition of a particle system

Lisitsyn, V. I.; Rumanov, É. N.; Khaikin, B. I.

doi:10.1007/bf00748905

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…In studies [1,11,[20][21][22], which were mainly performed using the following simplifications: heterogeneous reaction, a two-temperature approximation, full mixing, uniform heating of the particles and the gas, linear or parabolic oxidation laws for the fuel particles, analytic relationships between the ignition delay of the suspension and the parameters of the disperse system. It is shown that…”

Section: Ignition Delay Of Particle-gas Suspensionsmentioning

confidence: 99%

Ignition and Combustion of Dust-Gas Suspensions

Zolotko

Vovchuk

Шевчук

et al. 2005

Combust Explos Shock Waves

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The ignition and combustion of dust-gas suspensions are considered. It is shown that the ability of these systems to accumulate heat is determined not only by their kinetic and thermal properties but also by the relation between their reaction surface and the heat-removal surface (f ). Experimental information on flame temperatures, ignition delays, and flame propagation over gas suspensions is processed using the parameter f , and the postulate on the stimulating role of the developed reaction surface in activating these processes is validated. It is shown that during overall burning, diffusion combustion of particles occurs only for rather small values of f . The ambiguous effect of the parameter f on the ignition and combustion processes leads to the necessity of optimizing the fuel size distribution and concentration for the effective operation of the power devices. The role of the macroparameters of two-phase flames of refractory metals in the synthesis of combustion nanoproducts is analyzed.

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Section: Ignition Delay Of Particle-gas Suspensionsmentioning

confidence: 99%

Ignition and Combustion of Dust-Gas Suspensions

Zolotko

Vovchuk

Шевчук

et al. 2005

Combust Explos Shock Waves

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“…There is a big physical literature devoted to heat explosion in heterogeneous media (see for example [1,2,6,8,11]). In this paper we study one of the models which describes heat explosion in a non-moving heterogeneous medium consisting of reacting particles surrounded by a gas.…”

Section: Introductionmentioning

confidence: 99%

existence of solutions for an elliptic-algebraic system describing heat explosion in a two-phase medium

2000

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Abstract. The paper is devoted to analysis of an elliptic-algebraic system of equations describing heat explosion in a two phase medium filling a star-shaped domain. Three types of solutions are found: classical, critical and multivalued. Regularity of solutions is studied as well as their behavior depending on the size of the domain and on the coefficient of heat exchange between the two phases. Critical conditions of existence of solutions are found for arbitrary positive source function.Mathematics Subject Classification. 36J70, 80A20.

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Dynamics of a single particle

Yarin

Hetsroni

2004

Combustion of Two-Phase Reactive Media

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Induction period in the ignition of a particle system

Cited by 7 publications

References 2 publications

Ignition and Combustion of Dust-Gas Suspensions

Ignition and Combustion of Dust-Gas Suspensions

existence of solutions for an elliptic-algebraic system describing heat explosion in a two-phase medium

Dynamics of a single particle

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