Mathematical model of the low-temperature oxidation of coal in coal stockpiles and dumps

Abstract

Article define mathematical model of the low-temperature oxidation of coal, when it is spontaneously combustion. Process of spontaneously combustion can be initialization inside the coal stockpile by specific atmospheric conditions by reason of air flow through store of coal. Problem of lowtemperature oxidation of coal is defined as wall surface reactions of adsorbed carbon in porous zone, which is presented as store of coal. Influence of water vapour product is neglected in definition of reaction mechanism and in stoichiometric equation of combustion. Thus defined mathematical model is applied on the simple geometry as porous zone. Then software FLUENT 12 is used for numerical simulation.