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The fuel handling route of astrid at the beginning of the basic design

Abstract : At the beginning of the Basic Design phases of ASTRID starting in 2016, the entire fuel handling route has been challenged in order to improve some aspects like availability and investment cost. Especially, studies performed at the end of preliminary design (2010 – 2015) phase show that the availability target will be difficult to obtain with a significant risk of malfunction because of multiple handling operations in series. Two main changes have been then decided: the implementation of an in-sodium external buffer zone, similar with an insodium external storage but associated with an in-primary vessel storage to reduce its size and its allowable residual power, and the merging of the fresh subassembly storage with the spent fuel subassembly storage which allows both reduction of size and number of equipment. These new options have the first advantages to reduce drastically the number of operations that have to be done during scheduled outage and to minimize the overall Balance Of Plant. After description of the entire fuel handling route adopted for ASTRID, this paper aims at identifying the advantages of this new option and points the remaining issues or questions that will be studied in details during the current Basic Design phase.
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Submitted on : Friday, January 10, 2020 - 3:14:02 PM
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  • HAL Id : cea-02435094, version 1




F. Dechelette, C. Courcier, J. Hirn, H. Lorcet, K. Vulliez. The fuel handling route of astrid at the beginning of the basic design. International Conference on Fast Reactors and Related Fuel Cycles: Next Generation Nuclear Systems for Sustainable Development (FR17), Jun 2017, Yekaterinburg, Russia. ⟨cea-02435094⟩



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