Methodologies for Three-Dimensional Computational Modeling on Electrorefiner

Pyroprocessing have been actively researched in some major countries as a partitioning technology for treating spent nuclear fuel which has high proliferation resistance based on group separation of actinides and its high radiation and temperature conditions that make it hard to approach to nuclear material. In this technology, electrorefining play the leading part as a step in which most of uranium in spent nuclear fuel can be recovered. In order to recycle recovered uranium for nuclear fuel, it is important to acquire high purity uranium without other elements in this process. Furthermore, high throughput electrorefiner should be designed in order for pyroprocessing to become a feasible solution for spent nuclear fuel problem. These two goals could be more economically and effectively achieved based on three-dimensional design with computational analysis by reducing trial and error in experiment. However, since three-dimensional numerical analysis on multi-element electrochemical reaction requires expensive computational resources, it is impractical and inefficient to obtain all information on electrorefiner at once. In this paper, the several methods for three dimensional modeling on electrorefining process according to needed information are presented