Influence of initial pressure on cork dust/air mixtures explosibility

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

Pilao, R (Autor) Outra; Ramalho, E (Autor) Outra; C. Pinho (Autor) FEUP

Revista

Título: JOURNAL DE PHYSIQUE IV

Vol. 12

Páginas: 53-63

ISSN: 1155-4339

Editora: EDP SCIENCES S A

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-000-NG9

DOI: 10.1051/jp4:20020266

Abstract (EN): Flammability studies of air/cork dust mixtures were conducted in a near-spherical 22.7 L explosibility test chamber, using 2500 J pyrotechnic ignitors. The suspension dust burned as air-dispersed dust clouds and the uniformity of the dispersion in the chamber was evaluated through optical dust probes. Tested particles dust had mass median diameters of 71.3 mum and 222.1 mum and the covered dust cloud concentration was up to 700-800 g/m(3). Measured explosion parameters included minimum explosion concentration, maximum explosion pressure and maximum rate of pressure rise. The effect of initial pressure on the explosion characteristics parameters was studied by varying the initial absolute pressure from 0.9 bar to 2.2 bar, and it was found that as initial pressure increases, there is a proportional increase of minimum explosion limit, maximum explosion pressure, and maximum rate of pressure rise.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11