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Research Papers

Development of a Mass Transfer Model and Its Application to the Behavior of the Cs, Sr, Ba, and Oxygen ions in an Electrolytic Reduction Process for SF

원문정보

물질 전달 모델 개발과 사용후핵연료 전기환원 공정에서의 세슘, 스트론튬, 바륨 및 산소 이온의 거동에 관한 적용

Byung Heung Park, Dae-Seung Kang, Chung-Seok Seo, Seong-Won Park

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

Isotopes of alkali and alkaline earth metals (AM and AEM) are the main contributors to the heat load and the radiotoxicity of spent fuel (SF) . These components are separated from the SF and dissolved in a molten LiCl in an electrolytic reduction process. A mass transfer model is developed to describe the diffusion behavior of Cs, Sr, and Ba in the SF into the molten salt. The model is an analytical solution of Fick's second law of diffusion for a cylinder which is the shape of a cathode in the electrolytic reduction process. And the model is also applied to depict the concentration profile of the oxygen ion which is produced by the electrolysis of LiO. The regressed diffusion coefficients of the model correlating the experimentally measured data are evaluated to be greater in the order of Ba, Cs, and Sr for the metal ions and the diffusion of the oxygen ion is slower than the metal ions which implies that different mechanisms govern the diffusion of the metal ions and the oxygen ions in a molten LiCl.

목차

Abstract
 I. Introduction
 II. Thermodynamic Analysis
 III. Diffusion Model
 IV. Experiment
 V. Results and discussions
 VI. Conclusion
 References

저자정보

  • Byung Heung Park 박병훙. 한국원자력연구소
  • Dae-Seung Kang 강대승. 한국원자력연구소
  • Chung-Seok Seo 서중석. 한국원자력연구소
  • Seong-Won Park 박성원. 한국원자력연구소

참고문헌

자료제공 : 네이버학술정보

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