Review of the explosibility of nontraditional dusts / S. Morgan Worsfold in Industrial & engineering chemistry research, Vol. 51 N° 22 (Juin 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7651–7655 Titre : Review of the explosibility of nontraditional dusts Type de document : texte imprimé Auteurs : S. Morgan Worsfold, Auteur ; Paul R. Amyotte, Auteur ; Faisal I. Khan, Auteur Année de publication : 2012 Article en page(s) : pp. 7651–7655 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Explosion dusts Résumé : This paper explores the explosion characteristics of three nontraditional dusts: nanomaterials, flocculent materials, and hybrid mixtures. Nanomaterials have a high likelihood of explosion with minimum ignition energies potentially less than 1 mJ. These low ignition energies may therefore allow nanomaterials to ignite due to electrostatic sparks, collision, or mechanical friction. The severity of nanomaterial explosions is affected by agglomeration and coagulation of the particles. Flocculent materials with a high length-to-diameter ratio exhibit explosion behavior patterns similar to those for spherical dusts. The length of flocculent particles plays a role in explosion likelihood which is not yet fully understood. High voltage discharge during the electrostatic flocking process is a common flocculent ignition hazard. Hybrid mixtures of a combustible dust and a flammable gas/vapor display a higher explosion severity and a lower minimum explosible concentration than that of the dust alone. Violent hybrid explosions may occur even if the dust and the gas/vapor are below their respective lean limit concentrations. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201614b [article] Review of the explosibility of nontraditional dusts [texte imprimé] / S. Morgan Worsfold, Auteur ; Paul R. Amyotte, Auteur ; Faisal I. Khan, Auteur . - 2012 . - pp. 7651–7655. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7651–7655 Mots-clés : Explosion dusts Résumé : This paper explores the explosion characteristics of three nontraditional dusts: nanomaterials, flocculent materials, and hybrid mixtures. Nanomaterials have a high likelihood of explosion with minimum ignition energies potentially less than 1 mJ. These low ignition energies may therefore allow nanomaterials to ignite due to electrostatic sparks, collision, or mechanical friction. The severity of nanomaterial explosions is affected by agglomeration and coagulation of the particles. Flocculent materials with a high length-to-diameter ratio exhibit explosion behavior patterns similar to those for spherical dusts. The length of flocculent particles plays a role in explosion likelihood which is not yet fully understood. High voltage discharge during the electrostatic flocking process is a common flocculent ignition hazard. Hybrid mixtures of a combustible dust and a flammable gas/vapor display a higher explosion severity and a lower minimum explosible concentration than that of the dust alone. Violent hybrid explosions may occur even if the dust and the gas/vapor are below their respective lean limit concentrations. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201614b

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