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http://dx.doi.org/10.7731/KIFSE.2012.26.4.001

A Study on the Comparison of Explosive Lower Limit Concentration & Thermal Specific of Wheat Powder Dust & Salicylic Acid Dust  

Ko, Jae-Sun (Dept. of Fire Service Administration, Howon Univ.)
Publication Information
Fire Science and Engineering / v.26, no.4, 2012 , pp. 1-9 More about this Journal
Abstract
We have examined In order to compare each other from explosion and combustion characteristics about the dusts which collects from manufacturing process of wheat flour and cosmetics manufacturing process of functional Keratin removal soap at the small and medium enterprise style. We measured explosive pressure and explosive lower limit which follows in change of concentration change at the time of talc addition uses Hartman dust explosion apparatus, also measured weight loss and endothermic quantity uses DSC and TGA. The explosion test results show that increased explosive lower limit concentration and explosive pressure decreased by the increased ratio of the talc dust. And the DSC results show that heat flux and temperature decreased by the increased ratio of the talc dust. Also increased in raising temperature causes initial smoldering temperature to move towards low temperature section and the endothermic quantity increased on a large scale. Together the TGA results show that weight loss decreased by the increased ratio of the talc dust. From this research we have assured the successive dust explosion mechanism study will play a key role as a significant safety securing guideline against the dust explosion.
Keywords
Dust explosion; Explosive lower limit concentration; Explosion pressure; Raising temperature; Weight loss; Heat flux;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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