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Contribution of the Numerical Simulations in the Development of the French HLLW Vitrification Processes

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Abstract

For many years, the CEA (Commissariat à l'Énergie Atomique et aux Énergies Alternatives) Marcoule and AREVA have developed various processes dedicated to radioactive waste confinement, especially vitrification processes for HLLW. For 10 years now, the numerical simulation has become an important tool for research and developement projects held in the CEA-AREVA Joint Vitrification Laboratory (LCV). Induction heating, fluid mechanics and thermal simulations take part of all new R&D projects. The apports of such simulations are, first, the enhancement of the working knowledge of existing process. Those data are very useful to define optimisation choices, for example upgrades made on the hot metallic melter used since the 1990s at LaHague facility. Second, the simulations are, of course, also used at the conception stage of new processes as a tool allowing wide ranges parametric tests. This has been extensively used in the design of the cold crucible inductive melter (CCIM) commissioned in 2010 at La Hague plant. Finally, it is a powerful tool for prospective studies for processes of the future. Whatever the purpose, the potential benefits are gains on the reliability, the output capacity and the life time.
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Dates and versions

cea-03019162 , version 1 (23-11-2020)

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  • HAL Id : cea-03019162 , version 1

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Emilien Sauvage, P. Brun, A. Bonnetier, J. Lacombe, C. Ladirat. Contribution of the Numerical Simulations in the Development of the French HLLW Vitrification Processes. WM2015 - Annual Waste Management Symposium, Mar 2015, Phoenix, United States. ⟨cea-03019162⟩

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