Description :
Abstract
Coalfires, are a serious problem in most of the major coal- producing countries including China, India and Indonesia. Australia also experiences similar problems on a smaller scale. Combustion can occur either spontaneously or as a result of anthropogenic causes, within the coal seams underground or in piles of stored coal or spoil-dumps on the surface. Once started, they are difficult to extinguish. Trails to put them off in vain. Coal fires produce large quantities of CO2 along with several other noxious gases such as carbon monoxide, oxides of sulphur and methane. It has been noted that greenhouse gas emissions from coalfires are significant enough to create a global impact. Apart from these large-scale environmental problems coalfires cause many local problems, operational difficulties, lead to consumption of a precious non-renewable energy source, and endanger human security. Fire may occur in coal mines due to exogenous and endogenous causes. The causes of fires are critically analysed by taking the detailed informations. Proper precautionary measures against fire will increase the safety of mines and hence the sterilization of resource will be minimum. Proper identification of fires and its dealing will reduce the overall lost of coal production. This review paper discusses, coal and coal mining in India, problems of coal mining, factors causing coal fire, impact of coal fire on environment, coal fires in India, R &D in clean coal technologies and the significance of satellite remote sensing as a reliable tool to detect and monitor coalfires.
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