Article (Scientific journals)
Silo flow-pattern diagnosis using the tracer method
Job, Nathalie; Dardenne, Albert; Pirard, Jean-Paul
2009In Journal of Food Engineering, 91 (1), p. 118-125
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Keywords :
Storage; Solid flowing; Tracer test; Silo
Abstract :
[en] The storage silo of a sugar refinery was designed by its manufacturer for a plug-flow pattern of sugar ingots in order to ensure effective drying of the sugar introduced at the top of the silo. Because of the excessive moisture content of the extracted ingots, the quality of flow within the silo was called into question. The silo flow-pattern was thus studied by introducing sugar lumps as a tracer at the top of the silo filled with ingots. The tracer weight percentage was measured at the outlet. Results show that the silo flow-pattern is not of the plug-flow type in its whole volume: after formation of a crater, only the central volume flows, while the outer residual volume remains motionless. The tracer test also enabled the detection of preferential flow patterns. The tracer method was found to be quite useful as a diagnosis method for such a device in normal functioning. (C) 2008 Elsevier Ltd. All rights reserved.
Disciplines :
Chemical engineering
Materials science & engineering
Author, co-author :
Job, Nathalie  ;  Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
Dardenne, Albert
Pirard, Jean-Paul ;  Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
Language :
English
Title :
Silo flow-pattern diagnosis using the tracer method
Publication date :
2009
Journal title :
Journal of Food Engineering
ISSN :
0260-8774
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
91
Issue :
1
Pages :
118-125
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 24 August 2009

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