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Particle dynamics and heat transfer at workpiece surface in heat treatment fluidised beds

Gao, W. M., Kong, L. X., She, F. H. and Hodgson, P. D. 2011, Particle dynamics and heat transfer at workpiece surface in heat treatment fluidised beds, Advanced materials research, vol. 264-265, pp. 1456-1461.

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Title Particle dynamics and heat transfer at workpiece surface in heat treatment fluidised beds
Author(s) Gao, W. M.
Kong, L. X.
She, F. H.
Hodgson, P. D.
Journal name Advanced materials research
Volume number 264-265
Start page 1456
End page 1461
Total pages 6
Publisher Trans Tech Publications
Place of publication Stafa-Zurich, Switzerland
Publication date 2011
ISSN 1022-6680
Keyword(s) bubble behavior
fluidised bed
heat transfer
heat treatment
particle dynamics
Summary The particle behaviour in a heat treatment fluidised bed was studied by the analysis of particle images taken with a high speed CCD digital video camera. The comparison of particle dynamics was performed for the fluidised beds without part, with single part and with multi-parts. The results show that there are significant differences in particle behaviours both in different beds and at different locations of part surfaces. The total and radiative heat transfer coefficients at different surfaces of a metallic part in a fluidised bed were measured by a heat transfer probe developed in the present work. The structure of the probe was optimized with numerical simulation of energy conservation for measuring the heat transfer coefficient of 150-600 W/m2K. The relationship between the particle dynamics and the heat transfer was analysed to form the basis for future more rational designs of fluidised beds as well as for improved quality control.
Language eng
Field of Research 080110 Simulation and Modelling
Socio Economic Objective 890299 Computer Software and Services not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Trans Tech Publications, Switzerland
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044116

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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