Browsing by Author "Couybes, J"
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- ItemOPAL multicycle core benchmark using TRIPOLI4.10® and COCONEUT2.0(European Research Reactor Conference, RRFM, 2019-03-24) Decroocq, M; Bouret, C; Couybes, J; Privas, E; Gavoille, N; Koubbi, J; Manifacier, L; Braoudakis, GThe aim of the work performed by TechnicAtome is to benchmark its codes with data provided by ANSTO on the OPAL core. Calculation schemes used are Monte- Carlo TRIPOLI4.10® (with its depletion module) and deterministic COCONEUT2.0. After validating the models used on startup core configurations, we carry on the benchmarking process by performing the depletion calculations over cycles 7-13, as provided by ANSTO. Use of pre and post processing tools is highlighted, making the whole process easier to cross-check. COCONEUT2.0 in its homogeneous version and TRIPOLI4.10®, even though they are very different models, both show a similar increasing trend in the k-eff within each cycle, possibly due to an overestimation of cadmium wires burnup. On the other hand, COCONEUT2.0 in its semiheterogeneous version shows a rather flat k-eff behaviour within each cycle which could mean a better burnup calculation of both Cd and U-235. All three codes however show a trend between the cycles, consistent with that observed by other CRP participants, with an increase in the k-eff. Burnup calculations, both with COCONEUT2.0 and TRIPOLI4.10® are satisfactory.