Local total and radiative heat-transfer coefficients during the heat treatment of a workpiece in a fluidised bed Gao, Weimin, Kong, Lingxue and Hodgson, Peter 2006, Local total and radiative heat-transfer coefficients during the heat treatment of a workpiece in a fluidised bed, Applied thermal engineering, vol. 26, no. 14-15, pp. 1463-1470, doi: 10.1016/j.applthermaleng.2005.12.013. Attached Files Name Description MIMEType Size Downloads Title Local total and radiative heat-transfer coefficients during the heat treatment of a workpiece in a fluidised bed Author(s) Gao, Weimin orcid.org/0000-0002-7390-169X Kong, Lingxue orcid.org/0000-0001-6219-3897 Hodgson, Peter orcid.org/0000-0002-6985-1319 Journal name Applied thermal engineering Volume number 26 Issue number 14-15 Start page 1463 End page 1470 Publisher Pergamon Place of publication Oxford, United Kingdom Publication date 2006 ISSN 1359-4311 1873-5606 Keyword(s) fluidised bed heat transfer radiation heat treatment metal Summary The heat-transfer coefficients around a workpiece immersed in an electrically heated heat treatment fluidised bed were studied. A suspension probe designed to simulate a workpiece of complex geometry was developed to measure local total and radiative heat-transfer coefficients at a high bed temperature. The probe consisted of an energy-storage region separated by insulation from the fluidised bed, except for the measuring surface, and a multi-thermocouple measurement system. Experiments in the fluidised bed were performed for a fluidising medium of 120-mesh alumina, a wide temperature range of 110–1050 °C and a fluidising number range of 1.18–4.24. It was found that the workpiece surface temperature has a more significant effect on heat transfer than the bed temperature. The total heat-transfer coefficient at the upper surface of the workpiece sharply decreased at the start of heating, and then steadily increased as heating progressed, while a sharp decrease became a rapid increase and then a slow increase for the radiative heat-transfer coefficient. A great difference in the heat-transfer coefficients around the workpiece was observed. Language eng DOI 10.1016/j.applthermaleng.2005.12.013 Field of Research 091505 Heat and Mass Transfer Operations HERDC Research category C1 Refereed article in a scholarly journal Copyright notice ©2006, Elsevier Ltd Persistent URL http://hdl.handle.net/10536/DRO/DU:30003829 Document type: Journal Article Collections: Centre for Material and Fibre Innovation GTP Research Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 10 Oct 2008, 08:14:39 EST Fri, 03 Apr 2009, 09:25:34 EST Fri, 13 Jun 2014, 23:54:14 EST Wed, 27 Aug 2014, 21:23:18 EST Filtered Full Citation counts:   Cited 3 times in TR Web of Science Cited 3 times in Scopus Search Google Scholar Access Statistics: 1074 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Mon, 07 Jul 2008, 09:04:21 EST