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Development of Direct Reduction CFD Mathematical Model:Midrex Reactor

机译：直接减少CFD数学模型的发展：Midrex反应堆

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World production of DRI has increased in the recent past due to the raise in industrial capacity.MIDREX reactors account nowadays for about 70％ or more of this production.However,process reactions,operational parameters and raw materials behavior influence in the direct reduction reactor need to be further studied.Computational simulation has been an important tool for forecasting,developing and analyzing raw materials and operational parameters.This is mainly because the model answer is fast and after the model has been validated it has a low operational cost,since raw materials and fuels are not consumed.Another positive point is that there is no environmental impact given that all experiments are performed in a virtual environment.This work aims to present the development of a direct reduction CFD model focused on the MIDREX reactor.The mathematical modeling follows the continuum theory,where a collect of particles are considered identical and as such can be solved by transport phenomena equations.Momentum,mass and energy transport equation are solved simultaneously.The resulting discretized partial differential equations are solved using the finite volume method.The developed model is able to predict the behavior of MIDREX reactor associated to products and processes.The main results obtained by this model are profiles of temperature,pressure and chemical composition of gas and metallic materials; besides this it predicts metallization percentage of DRI among others operational parameters.
机译：由于工业能力的提升，世界近期的世界产量增加了这一生产的大约70％以上。然而，过程反应，操作参数和原材料行为在直接减少反应堆中的影响下降约70％或更多要进一步研究，所以进行了预测，开发和分析原材料和操作参数的重要工具。这主要是因为模型答案是快速的，在模型已经验证后它具有低运营成本，自原料以来并且燃料不会消耗。其他正点是鉴于虚拟环境中的所有实验都没有对环境影响没有环境影响。本工作旨在展示专注于Midrex反应器的直接减少CFD模型的发展。数学建模遵循连续性理论，其中颗粒的收集被认为是相同的，因此可以通过运输素来解决omena等分法同时解决。使用有限体积方法解决了所得离散的部分微分方程。开发的模型能够预测与产品和过程相关的Midrex反应器的行为。获得的主要结果通过该模型是气体和金属材料的温度，压力和化学成分的型材;除此之外，它预测其他操作参数中DRI的金属化百分比。

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