Spontaneous Heating Hotspot: A key to Temperature Profile of Coal Stockpile

Abstract

This paper provides the information of how a coal fire in a stockpile takes. Stockpiles are meant for storage to meet the demands of the industries at need. They can be store for few days to one year and above. Self-heating of coal takes place if the accumulation period of coal is increased to a longer duration. The point where the accumulated heat inside the pile is more than dissipation can be termed as hotspot. Gradually, it reaches beyond the crossing point of coal and goes for spontaneous combustion. When it comes to surface it comes as fire. Therefore an early detection can prevent spontaneous combustion of coal and a large amount of coal reserve can be saved.