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The Spontaneous Heating of Coal and the Role of Moisture Transfer.
For Reference Only At Bureau Libraries :78 pages
This report describes the occurrence of spontaneous heating in an 800-metric-ton heap of Wyoming coal. The major part of the report deals with the oxidation of Pittsburgh seam and Wyoming subbituminous coal and describes an experiment in which 1 metric ton of Wyoming coal is stored in a 5-meter-long insulated container while air is passed through. Temperature rises, rates of oxygen absorption, and gas compositions of the air stream are measured. The report relates the results of the experiments to a theory of spontaneous heating, which stresses the importance of the moisture content of coal and the relationship between the heat necessary to evaporate water to the heat available from coal oxidation.
CP; Final Contract Report;
For Reference Only At Bureau Libraries
Univ. of Canterbury, New Zealand
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division