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Title: Modelling and simulation of Fe2O3/aluminum thermite combustion
Author: Brito, Paulo
Durães, Luísa
Campos, José
Portugal, António
Keywords: Combustion
Finite differences
Adaptive methods
Grid refinement
Issue Date: 2005
Publisher: [s.n.]
Citation: Brito, Paulo; Durães, Luísa; Campos, José; Portugal, António (2005) - Modelling and simulation of Fe2O3/aluminum thermite combustion. In 9th International Chemical Engineering Conference. Coimbra. ISBN 972-8055-13-7
Abstract: We present a one-dimensional model to simulate self-propagating high-temperature synthesis processes. The radial combustion of Fe2O3/Al thermite is used as case study. The model considers non-steady propagation with conductive/radiative heat transfer mechanisms and zero order kinetics. The thermophysical properties of the components depend on the temperature and composition of the mixture and appropriate mixing rules are used for each property. Fixing the thermophysical properties for the initial conditions, we conclude that increasing K leads to higher maximum temperatures and wave propagation velocities, always with complete conversion. The simulation results are in good agreement with the experimental observations. The activation of the thermophysical properties variation causes numerical difficulties which are being solved by further tuning of the parameters.
ISBN: 972-8055-13-7
Publisher Version: Chempor’2005 -
Appears in Collections:DTQB - Artigos em Proceedings Não Indexados ao ISI/Scopus

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