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2644784 
Journal Article 
CFD MODELLING OF DUST EXPLOSIONS: RAPID COMBUSTION IN A 20 L APPARATUS 
Bind, VK; Roy, S; Rajagopal, C 
2011 
Yes 
Canadian Journal of Chemical Engineering
ISSN: 0008-4034 
89 
4 
663-670 
WOS:000292735200006 
Dust explosions are combustion of fine dust particles in a rapid reaction regime. They are of relatively common occurrence in industries which have unit operations like grinding, pneumatic conveying, drying, and fine particle collection: generally those units which handle fine particles or "dust" in an oxygen-rich environment. At present, mitigation and prevention of dust explosion accidents is largely based on operator experience and safety inspection heuristics: knowledge that often cannot be documented or put into scientifically developed safety rules. Part reason for this state of affairs is our lack of fundamental understanding on how a dust explosion progresses after ignition of the dust cloud. In this contribution, with a view towards improving our understanding of dust explosions, we propose a multi-scale modelling approach for modelling dust explosion phenomena in a standard 20 L Siwek Apparatus. The modelling approach is based on computational fluid dynamics methods treating Aluminum dust cloud as a quasi-homogeneous phase. 
dust explosion; CFD modelling; CFD of dust explosions; Al dust explosion