Some myths and realities about dust explosions |
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| Institution: | 1. Reaction and Chemical Engineering Laboratory (LRGP), University of Lorraine, UPR 33 49 CNRS, 1 Rue Grandville, BP 20451, 54001 Nancy, France;2. Mechanical Engineering Department, Universidad de los Andes, Carrera 1 Este 19A 40, Bogotá, Colombia;3. Chemical Engineering Department, Universidad de los Andes, Carrera 1 Este 19A 40, Bogotá, Colombia;1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China;2. School of Chemical Machinery, Dalian University of Technology, Dalian 116024, PR China;3. National Quality Supervision and Inspection Center for Industrial Explosive Materials, Nanjing, Jiangsu 210094, PR China;1. Federal Institute for Materials Research and Testing (BAM), Department 2 “Chemical Safety Engineering”, Unter den Eichen 87, 12205 Berlin, Germany;2. Otto-von-Guericke-University of Magdeburg, Chair of System Engineering and Plant Safety, Universitätsplatz 2, 39106 Magdeburg, Germany |
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| Abstract: | The necessary conditions for a dust explosion to occur are well-expressed by the explosion pentagon: (i) fuel, (ii) oxidant, (iii) ignition source, (iv) mixing of the fuel and oxidant, and (v) confinement of the resulting mixture. While it might seem relatively straightforward to prevent or mitigate a dust explosion by simply removing one of the pentagon elements, the field of dust explosion risk reduction is more complex. Building upon previous work by the author and other dust explosion researchers, the theme of the current paper is that this complexity is partially rooted in several erroneous beliefs. These beliefs ignore the realities found with full consideration of appropriate scientific and engineering principles. Several such myths and their factual counterparts are presented with an illustrative example. |
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| Keywords: | Dust explosions Prevention Mitigation Explosion pentagon Myths Realities |
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