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Simulation of Bubbling Fluidized Bed using a One-Dimensional Model Based on the Euler-Euler Method

Cornelius Agu
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway

Marianne Eikeland
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway

Lars Tokheim
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway

Britt M. E. Moldestad
Department of Process, Energy and Environmental Technology, University College of Southeast Norway, Norway

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp17142575

Ingår i: Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016

Linköping Electronic Conference Proceedings 142:84, s. 575-581

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Publicerad: 2018-12-19

ISBN: 978-91-7685-399-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

The behaviour of a fluidized bed can be modeled based on the Euler-Euler approach. This method has been fully utilized in both three-dimensional (3D) and two-dimensional (2D) systems for obtaining, for example, the axial and radial distribution of fluidized bed properties. However, the bed property such as void fraction distribution along the flow direction can be of great interest for a design purpose. To save computational cost, an appropriate one-dimensional (1D) model can be used to obtain the average bed property along the vertical axis of a fluidized bed. In this paper, a 1D model based on the Euler-Euler method is presented. The results show that the model can be used to describe the behaviour of a fluidized bed. With a reasonable accuracy, the results also show that the 1D model can predict the minimum fluidization velocity and the superficial gas velocity at the onset of slugging regime.

Nyckelord

Euler-Euler, bubbling, void fraction, fluidized bed, flow regime

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