Mathematical modelling of the coal stockpile self-heating process. A case study

摘要

A simulation of the self-heating process occurring naturally in coal beds was carried out for a coal stockpile from Lupoaia (Romania). In order to obtain realistic results, meteorological data collected on site was used. Thermo-physical and chemical properties of coal used in the analysis were evaluated using samples from the actual stockpile. It was found that the self-heating process occurs at higher rate in the vicinity of the side slopes of the stockpile. Side slope exposure to wind is another factor that boosts the self-heating process.