Development of a 1D transient electrorefiner model for pyroprocess simulation
Development of a 1D transient electrorefiner model for pyroprocess simulation
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DOI：
10.1016/j.anucene.2014.03.028
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发表时间：
2014-09-01
影响因子：
1.9
通讯作者：
Yim, Man-Sung
中科院分区：
文献类型：
--
作者：
Cumberland, Riley M.;Yim, Man-Sung
本文描述了一种高效的一维计算机程序的开发，用于模拟电精炼过程中的质量传递和分离，电精炼是热加工的关键组成部分。综述了电化学器件中出现的各种现象，并对现有的计算机模型进行了检验，为新模型的开发提供了依据。在描述电精炼的限速步骤和分离效率的基础上，选择了关键工艺和重要现象。该开发的模型名为ERAD，描述了多组分电化学系统的时间依赖性行为，能够描述乏核燃料的阳极溶解、电解质中的非流体动力学质量传递效应以及材料的阴极沉积。通过与已有实验数据的对比，证明了该模型的有效性。为了验证模型，还将模型预测结果与循环伏安法和其他实验数据进行了比较。(C) 2014 Elsevier Ltd.版权所有。
Development of an efficient 1-dimensional computer code to model mass transport and separation in electrorefining, a key component process of pyroprocessing, is described in this paper. A variety of phenomena occurring in electrochemical devices is reviewed along with examination of existing computer models to provide basis for new model development. Key processes and phenomena of importance were selected based on describing rate-limiting steps and separation efficiency of electrorefining. The developed model, named ERAD, describes time-dependent behavior of multi-component electrochemical systems with the capability of depicting anodic dissolution of spent nuclear fuel, non-hydrodynamic mass transport effects in the electrolyte, and cathodic deposition of materials. Utilization of the model is demonstrated through comparison with existing experimental data. For the purpose of model validation, model predictions are also compared with cyclic voltammetry and other experimental data. (C) 2014 Elsevier Ltd. All rights reserved.