Abstract：In the laboratory scale, a dewar flask heat insulation equipment was designed to conduct the self-heating experiment of rice straw at room temperature, and the influence of the moisture (50%, 60% and 70%, expressed as dry basis) and particle size (≤ 2 mm and 0.2 mm) were studied. The results indicated that the internal temperature of the sample increased with the moisture content, while decreased with the particle size. The increase of moisture, ash content, pH value and the change of calorific value reflected that self-heating led to obvious losses of heat and mass. Therefore controlling the moisture content and particle size reasonably is crucial to prevent the occurrence of self-heating.
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2018, Vol. 6 
