Towards grain-scale modelling of the release of radioactive fission gas from oxide fuel. Part I: SCIANTIX

Zullo, G.; Pizzocri, D.; Magni, A.; Uffelen, P. Van; Arndt, Sebastian; Luzzi, L.

doi:10.1016/j.net.2022.02.011

Cited by 3 publications

(11 citation statements)

References 42 publications

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“…SCIANTIX is suitable for in-pile stationary and transient, and out-of-pile annealing conditions [19,40,41]. At present, SCIANTIX includes rate-theory models for the description of stable and radioactive fission gas (xenon and krypton) [21,42,43] and helium behaviour [44,45]. In addition, the formation of high burn-up structure is considered [12,46].…”

Section: Sciantixmentioning

confidence: 99%

“…Eventually, thanks to the coupling with SCIANTIX (outlined in the next Section 2.3), TRANSURANUS inherits the SCIANTIX physics-based models for intra-and inter-granular stable fission gas behaviour [12,42,43,48], helium behaviour [44] and radioactive fission gas behaviour [15,21].…”

Section: Transuranusmentioning

confidence: 99%

“…The TRANSURANUS fuel performance code [9,10], coupled with the fission gas behaviour module SCIANTIX [11], is employed to test at the rod scale the impact of the physics-based models that describe the fission gas evolution in the UO 2 fuel grains [11,21,42,48].…”

Section: Code Assessment Against Integral Irradiation Experimentsmentioning

confidence: 99%

“…In addition, SCIANTIX includes a physics-based model for the evolution of the intra-granular fission gas bubbles coupled to the aforementioned grain-boundary model, which also affects the fission gas release and swelling prediction [42]. behaviour [11,21].…”

Section: Description Of the Contact 1 Experimentsmentioning

confidence: 99%

“…Through the coupling, we extend the capabilities of TRANSURANUS (currently relying on the semi-empirical methodology ANS 5.4e2010 [20]) in predicting the amount of radioactive fission gas accumulated in the free volume of the fuel rod, available for release into the primary coolant in the event of a cladding failure. In particular, the present work follows a previous Part I [21], in which we developed a physics-based description of the grainscale behaviour of radioactive fission gas in UO 2 . We implemented the model in SCIANTIX and employed the stand-alone version of the code to reproduce the CONTACT 1 [22,23] irradiation experiment, analysing the release-to-birth ratio of a set of radioactive xenon and krypton isotopes.…”

Section: Introductionmentioning

confidence: 99%

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