Earticle

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

키워드

저자

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

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사성폐기물학회지 [Journal of Nuclear Fuel Cycle and Waste Technology (JNFCWT)]

• 간기

  계간

• pISSN

  1738-1894

• 수록기간

  2003~2017

• 십진분류

  KDC 559 DDC 629