Abstract
In our laboratory, development of a new detection system using different types of sensors was attempted for the detection of the spontaneous combustion of coal. The measurements of changing smell which was generated from the coal sample were carried out by using this detection system during heating the samples. Akabira coal, Ashibetsu coal, Sorachi coal, Taiheiyo coal and South Africa coal were used as the samples. The results of the measurements are summarized as follows;
1) Spontaneous combustion of coal can be detected earlier by this detection system than by conventional CO detection system.
2) The most sensitive sensors for spontaneous combustion of coal were 112AJ and 453AA.
3) There is no difference in the results for different kinds of coal.
