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Author (up) Brems, A.; Caceres, G.; Dewil, R.; Baeyens, J.; Pitie, E. pdf  doi
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  Title Heat transfer to the riser-wall of a circulating fluidised bed (CFB) Type
  Year 2013 Publication Energy Abbreviated Journal Energy  
  Volume 50 Issue Pages 493-500  
  Keywords Heat transfer; Wall-to-suspension; Riser; Correlations; Prediction; Coefficient of heat transfer  
  Abstract The circulating fluidized bed is of increasing importance for gas-solid and gas-catalytic reactions, for drying, and recently its use in solar energy capture and storage has been advocated. In all applications, the supply or withdrawal of heat is a major issue, and the heat transfer coefficient from the gas-solid suspension to the heat transfer surface needs to be determined as design parameter. The present paper investigates the heat transfer coefficient for different operating gas velocity and solids circulation flux, whilst covering the different hydrodynamic solid flow regimes of dilute, core-annulus or dense mode. Measured values of the wall-to-bed heat transfer coefficients are compared with empirical predictions of both Molodstof and Muzyka, and Golriz and Grace. The application of a packet renewal mechanism at the wall is also investigated, and introducing the predicted solid contact time at the wall provides a very fair estimate of the heat transfer coefficient. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.  
  Address [Brems, A.; Dewil, R.] Katholieke Univ Leuven, Dept Chem Engn, Chem & Biochem Proc Technol & Control Sect, B-3001 Heverlee, Belgium, Email: fpitie@whittakereng.com  
  Corporate Author Thesis  
  Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0360-5442 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000316432700050 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 310  
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