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Three dimensional mathematical model of the iron ore sintering process based on multiphase theory

TLDR
In this paper, a computational simulation of the sinter process is developed that is able to predict the most important phenomena within a sintering bed, such as momentum, chemical reactions and heat transfer.
Abstract
In the integrated steel industries the sintering process plays an important role furnishing raw material to the blast furnace. In this work, a computational simulation of the sinter process is developed that is able to predict the most important phenomena within the sintering bed. The model is based on the multi phase concept with multiple components described by conservation equations of each component coupled with the momentum, chemical reactions and heat transfer. The model validation was carried out comparing the model predictions with averaged industrial data and local temperature measurements within the sinter strand. The model predictions presented good agreement with the averaged values measured on the industrial sinter process.

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Journal ArticleDOI

Mathematical modeling and combustion characteristic evaluation of a flue gas recirculation iron ore sintering process

TL;DR: In this article, a multiphase theory-based mathematical model is established to predict sintering behavior quantitatively, but few of the previous work focused on FGRS process.
Journal ArticleDOI

Prediction of sinter yield and strength in iron ore sintering process by numerical simulation

TL;DR: In this paper, an unsteady two-dimensional mathematical model for the iron ore sintering process was developed by taking most of the significant physical phenomena and chemical reactions into consideration, by employing FLUENT software and C language programming via custom code.
Journal ArticleDOI

Mathematical modeling of and parametric studies on flue gas recirculation iron ore sintering

TL;DR: In this article, a more comprehensive 1D mathematical model for flue gas recirculation sintering (FGRS) is proposed, which considers multiphase theory, eight major reactions significantly affected by the input gas conditions, and various heat transfer processes within/between different solid and gas phases.
Journal ArticleDOI

Experimental study and X-ray microtomography based CFD simulation for the characterization of pressure drop in sinter bed

TL;DR: In this paper, a pilot-scale sinter pot tests under three granulation moisture conditions were conducted and the reconstructed sinter cakes showed various complex porous structures, resulting in remarkable flow heterogeneity and complicated velocity field.
Journal ArticleDOI

Model predictions of PCDD and PCDF emissions on the iron ore sintering process based on alternative gaseous fuels

TL;DR: In this paper, a multiphase mathematical model based on transport equations of momentum, energy and chemical species coupled with chemical reaction rates and phase transformations is proposed to analyze the inner process parameters and the rates of PCDD and PCDF formations.
References
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Journal ArticleDOI

A mathematical model for blast furnace reaction analysis based on the four fluid model

TL;DR: In this article, a two dimensional mathematical model is developed describing four phase chemical reactions, motion, and heat transfer in the blast furnace, which simultaneously calculates the steady state composition, velocity, temperature, and volume fraction of all four phases.
Journal ArticleDOI

Calculation of fluid flows with staggered and nonstaggered curvilinear nonorthogonal grids-the theory

TL;DR: In this article, two finite-volume methods for discretization of conservation equations in three dimensions when using curvilinear nonorthogonal coordinates are presented, and both necessary coordinate and velocity transformations are given by tensor calculus.
Journal ArticleDOI

Three-dimensional Multiphase Mathematical Modeling of the Blast Furnace Based on the Multifluid Model

TL;DR: In this article, a three-dimensional multiphase mathematical model of the blast furnace is presented, where all phases behave like fluids and conservation equations for mass, momentum, energy and chemical species for all phases are solved based on the finite volume method.
Journal ArticleDOI

Formation of Calcium Ferrites under Controlled Oxygen Potentials at 1273 K

TL;DR: The phase identification and quantification of calcium ferrites in the experiment have been carried out by using X-ray diffraction method (the Rietveld method) as discussed by the authors.
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