کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
586010 | 1453274 | 2015 | 4 صفحه PDF | دانلود رایگان |
As a useful method of preventing dust explosions, nitrogen (N2), an incombustible gas, has been applied to an explosive atmosphere. This paper is a report that quantitatively determines whether the minimum ignition energy of powder depends on the nitrogen (or oxygen) concentration in the air. Hartman vertical-tube apparatus and six sample powders were used in this study. The results show that the minimum ignition energies of all of the powders used in this study increased with increased amounts of N2 in the air. However, the effects were different in all of the sample powders. We finally suggest that the N2 concentration of 84% (or above) prevents dust explosions due to electrostatic discharges in the industrial process with the sample powders used in this experiment.
Journal: Journal of Loss Prevention in the Process Industries - Volume 34, March 2015, Pages 163–166