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Journal of Porous Media
Fator do impacto: 1.49 FI de cinco anos: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508

Volumes:
Volume 22, 2019 Volume 21, 2018 Volume 20, 2017 Volume 19, 2016 Volume 18, 2015 Volume 17, 2014 Volume 16, 2013 Volume 15, 2012 Volume 14, 2011 Volume 13, 2010 Volume 12, 2009 Volume 11, 2008 Volume 10, 2007 Volume 9, 2006 Volume 8, 2005 Volume 7, 2004 Volume 6, 2003 Volume 5, 2002 Volume 4, 2001 Volume 3, 2000 Volume 2, 1999 Volume 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v12.i4.70
pages 369-377

Mathematical Modeling of Heat Transfer to a Cylindrical Solid Immersed in a Fluidized Bed of Small Particles

M. Ashtari
Chemical Engineering Department, University of Isfahan, Isfahan, Iran
N. Malekinejad
Chemical Engineering Department, University of Isfahan, Isfahan, Iran
Mohammad S. Hatamipour
University of Isfahan, Chemical Engineering Department, Isfahan University, Isfahan

RESUMO

The effect of heat carriers on heat transfer to a cylindrical metal bar was investigated theoretically. The usual models for wall heat transfer in fluidized beds was extended for heat transfer to an immersed cylinder in a fluidized bed by considering the physical properties of the heat carriers in the thermal diffusivity of the emulsion layer. The heat transfer coefficient predicted by film penetration theory was acceptable and the predictions of model had good agreement with experimental data. It was found that heat carriers with high thermal conductivity and low specific heat can enhance the heat transfer rate more than carriers with low thermal conductivity and high specific heat.


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