A model for the minimum ignition energy of dust clouds
2019
Abstract This study refers to the minimum ignition energy (MIE) of dusts as determined by means of the Hartmann tube. To do so, six different dust with different particle size and properties are employed. A theoretical model is developed to predict the MIE based upon the physical and chemical properties of the dust. The model clearly shows the relationship between the minimum ignition energy and the minimum ignition temperature of a dust cloud. The model results in a method to calculate the MIE of dusts. Also, the time necessary for ignition can be calculated with the model. The results show that despite some limitations, the model predicts the MIE for dusts rather well. It is proposed that 40–60% energy loss would be considered when applying the model.
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