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Steady State Model for Heat Transfer in a Packed Bed Reactor of Elliptic Cylindrical Shape

  • Laércio G. Oliveira , Ramdayal Swarnakar and Antonio G. B. de Lima
Published/Copyright: August 19, 2008
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 6 Issue 1

The fixed-bed reactors of circular cylindrical geometry with heated or cooled walls are frequently used to carry out heterogeneous reactions of solid-gas type in engineering applications. The design of a fixed bed reactor requires an extensive knowledge of heat transfer characteristics within the packed bed. In this sense, this work presents a three-dimensional mathematical model to predict the heat transfer inside a fixed bed elliptical cylinder heat exchanger. The model considers uniform velocity and temperature profiles of the fluid phase at the entrance of the reactor, and constant thermo-physical properties. The surface of the equipment convective boundary condition is assumed to be constant. The energy equation, written in the elliptical cylindrical coordinates, was discretized using a finite-volume method considering a fully implicit formulation, and WUDS interpolation scheme. Numerical results of the dimensionless temperature profiles inside the packed bed reactor at a steady state are presented and temperature distribution is interpreted. To validate the model, numerical results obtained for the circular cylinder are compared with analytical results from literature and a good agreement was obtained.

Keywords: reactor; elliptical cylinder; finite-volume; simulation
Published Online: 2008-8-19

©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston

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https://doi.org/10.2202/1542-6580.1771
Keywords for this article
reactor; elliptical cylinder; finite-volume; simulation

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  105. 10.2202/1542-6580.1799
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  107. Biosorption of Lignin Compounds Using Biomass Derived from Eichhornia crassipes: Batch Studies
  108. An Investigation of the Synthesis Parameters of the Reaction of Hydroxyapatite Precipitation in Aqueous Media
  109. CFD Simulation of Catalytic Oxidation of Ethyl Acetate over Cr-HZSM-5 Catalyst
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