Spontaneous Combustion in Coal Stockpiles with Different Particle Sizes

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 temperature
changes in the stockpiles were recorded by means of temperature measurement probes placed in the stocks designed in
2x3x10 m size. According to the results obtained; Coal stocks with grain sizes of 18-25 and 25-100 mm started to catch
fire before the end of the first month of storage. While no open flame ignition was observed in the stock with the finest
grain size (0-18 mm), at the end of the 2nd month, a temperature increase was observed only at a single point according
to the wind direction.