Influence of initial pressure on the explosibility of cork dust/air mixtures

• Type: Article in International Scientific Journal
• Date: 2004

Authors

R. Pilão (Author) Other; E. Ramalho (Author) Other; Carlos Pinho (Author) FEUP

Journal

Title: Journal of Loss Prevention in the Process Industries

Vol. 17 No. 1

Pages: 87-96

ISSN: 0950-4230

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 17 Citations

Scopus - 14 Citations

Other information

Authenticus ID: P-000-D2Q

DOI: 10.1016/j.jlp.2003.09.008

Abstract (EN): Flammability studies of air/cork dust mixtures were conducted in a near-spherical 22.71 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 particle dust had mass median diameters of 71.3 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 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10