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Modelling of the effect of size on flocculent dust explosions
journal contribution
posted on 2023-05-19, 10:45 authored by Russo, P, Amyotte, PR, Faisal KhanFaisal Khan, Di Benedetto, AThe effect of size on the severity of explosions involving flocculent materials has been simulated by means of a model previously developed for spherical particles and here extended to the cylindrical geometry of flock. The model consists of the identification of the regime (internal and external heating, pyrolysis/devolatilization reaction, and volatiles combustion) controlling the explosion by the evaluation of dimensionless numbers (Bi, Da, Th and Pc) and then of the estimation of the deflagration index as a function of flocculent size. The model has been validated by means of explosion data of polyamide 6.6 (nylon) at varying diameter and length. The comparison between model and experimental data show a fairly good agreement.
History
Publication title
Journal of Loss Prevention in the Process IndustriesVolume
26Issue
6Pagination
1634-1638ISSN
0950-4230Department/School
Australian Maritime CollegePublisher
Elsevier Sci LtdPlace of publication
United KingdomRights statement
?Copyright 2013 Elsevier Ltd. All rights reserved.Repository Status
- Restricted