Abstract
In this study, the spontaneous combustion behavior of stocks created with coals of 3 different particle sizes (0-18/18-28/25-100 mm) was examined for 2 months and the results were analyzed. For this purpose, daily temperaturechanges in the stockpiles were recorded by means of temperature measurement probes placed in the stocks designed in2x3x10 m size. According to the results obtained; Coal stocks with grain sizes of 18-25 and 25-100 mm started to catchfire before the end of the first month of storage. While no open flame ignition was observed in the stock with the finestgrain size (0-18 mm), at the end of the 2nd month, a temperature increase was observed only at a single point accordingto the wind direction.
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