Experimental Study on the Heat Radiation Path of a Constant Temperature Heat Source in a Closed Space Based on Infrared Detection Technology
The precise prevention and control of thermal storage and spontaneous combustion in underground goaf has always been one of the key issues in the field of coal mine safety.This article uses physical simulation experiments combined with data fitting and inversion to study the heat recombination path of a constant temperature heat source in an enclosed space using the FOTRIC348 infrared thermal imager.The results show that the main direction of heat transfer in the enclosed space is first vertical and then horizontal,and the horizontal transfer rate is much lower than the vertical transfer rate.There is a composite logarithmic function relationship between the distance and time of heat transfer in a closed space,with e as the base number.The establishment of this function relationship can be referred to the process of calculating the high temperature position during the initial stage of thermal storage and spontaneous combustion of residual coal in underground goaf,providing theoretical reference for precise prevention and control measures in goaf fire prevention and control work.
infrared detection technologycoal spontaneous combustionenclosed spaceconstant temperature heat sourceheat radiation pathexperimental study
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