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Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
A.R. Raffray, Z.R. Gorbis, M.A. Abdou
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1525-1531
ITER | Proceedings of the Ninth Topical Meeting on the Technology of Fusion Energy (Oak Brook, Illinois, October 7-11, 1990) | doi.org/10.13182/FST91-A29558
Articles are hosted by Taylor and Francis Online.
Several transport mechanisms are involved in tritium transport in solid breeders—diffusion in the grain, diffusion along grain boundary, bulk adsorption on the grain boundary/pore interface, desorption to the pores, diffusion along interconnected porosities and convection by the purge flow. It is generally thought that two of the most rate controlling mechanisms are diffusion in the grain and desorption at the grain boundary/pore interface. However, depending on the breeder microstructure, diffusion through the pore can also significantly affect the overall tritium transport process. These three mechanisms are considered here, and the key parameters affecting the tritium transport rate by each mechanism are characterized. Grain diffusion and desorption are first compared, and multi-parameter plots showing regions of diffusion and desorption controls are derived for cases of purge flow with and without hydrogen addition. Grain diffusion is then compared to pore diffusion and the effect of the solid breeder microstructure on the pore diffusion coefficient is discussed. Finally, the resulting equations and plots are applied to experimental data from the LISA1 and TRIO experiments to evaluate the rate-controlling mechanisms.