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首页> 外文期刊>World Journal of Nuclear Science and Technology >Modeling Operational Parameters for Uranium Dioxide Production Reactor through Uranium Trioxide Reaction Using Hydrogen
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Modeling Operational Parameters for Uranium Dioxide Production Reactor through Uranium Trioxide Reaction Using Hydrogen

机译:通过氢三氧化铀反应对二氧化铀生产反应器的运行参数建模

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This article shows the modeling of a uranium dioxide production reactor using COMSOL Multiphysics software program in its 4.3b version. The model was made using 3 kinds of studies: momentum, heat and mass transport, in order to determine the influence of the most important operational parameters: UO3 reaction rate, composition and flow of the reduction gas, the initial temperature reactor and the reducing gas. The operational parameters evaluated were the followings: constant gas flow of2.5 L/min, initial hydrogen concentration of 0.25, 0.50 and0.75 M, and initial temperature of 400°C. The obtained results allow to conclude that under these working conditions, uranium dioxide is obtained virtually instantaneous and, with concentrations close to 0.5 M H2 in the reducing gas, the process can operate continuously and autogenously, without applying additional energy and temperatures around 600°C.
机译:本文显示了使用COMSOL Multiphysics软件程序4.3b版对二氧化铀生产反应器进行建模的过程。为了确定最重要的操作参数(UO3反应速率,还原气的组成和流量,初始温度反应器和还原气)的影响,使用了三种研究:动量,热量和质量传递来建立模型。 。评估的操作参数如下:恒定气体流量为2.5 L / min,初始氢浓度为0.25、0.50和0.75 M,初始温度为400°C。获得的结果可以得出结论,在这些工作条件下,实际上可以获得二氧化铀,并且在还原气体中的浓度接近0.5 M H2时,该过程可以连续自发地进行,而无需施加额外的能量和600°C左右的温度。

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