Experimental investigation and numerical simulation of heat transfer in quenching fluidised beds

Experimental investigation and numerical simulation of heat transfer in quenching fluidised beds

Gao, Weimin, Kong, Lingxue and Hodgson, Peter 2005, Experimental investigation and numerical simulation of heat transfer in quenching fluidised beds, International journal of materials & product technology, vol. 24, no. 1-4, pp. 319-338.

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Title	Experimental investigation and numerical simulation of heat transfer in quenching fluidised beds
Author(s)	Gao, Weimin Kong, Lingxue Hodgson, Peter
Journal name	International journal of materials & product technology
Volume number	24
Issue number	1-4
Start page	319
End page	338
Publisher	Inderscience Publishers
Place of publication	Geneva, Switzerland
Publication date	2005
ISSN	0268-1900
Keyword(s)	quenching heat transfer modelling pressure fluctuation numerical simulation heat treatment fluidised beds fluidisation workpiece surfaces fluidising velocity gas dynamics cooling curve
Summary	Fluidisation characteristics at different surfaces of a work-piece of complex geometry are conducted in a fluidised bed at various conditions including fluidising number, bed temperature and fluidising medium. The quenching of the work-piece is performed experimentally. In particular, the major frequency and energy of the pressure fluctuations are measured as a function of either fluidising velocity or heat transfer position and the results are used to develop a mathematic model. A computational model is developed to simulate gas dynamics and heat transfer between the fluidised bed and the work-piece surface, as well as simulating the temperature within the work-piece. The predicted cooling curves are in good agreement with the experimental results. Based on the simulation results, the flow characteristics of the gas and the temperature of the dense gas-solid phase near the work-piece surface are analysed to understand the heat transfer mechanism in the fluidised bed.
Language	eng
Field of Research	091505 Heat and Mass Transfer Operations
HERDC Research category	C1 Refereed article in a scholarly journal
Persistent URL	http://hdl.handle.net/10536/DRO/DU:30003287

Document type:	Journal Article
Collection:	School of Engineering and Technology

Citation counts:	Cited 5 times in Scopus
Access Statistics:	428 Abstract Views, 0 File Downloads - Detailed Statistics
Created:	Mon, 07 Jul 2008, 08:48:47 EST

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