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dc.contributor.authorFradera, Jordi
dc.contributor.authorSedano, L.A.
dc.contributor.authorMas de les Valls Ortiz, Elisabet
dc.contributor.authorBatet Miracle, Lluís
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.identifier.citationFradera, J. [et al.]. Implementation of two-phase tritium models for helium bubbles in HCLL breeding blanket modules. "Journal of nuclear materials", 2011, vol. 417, núm. 1-3, p. 739-742.
dc.description.abstractTritium self-sufficiency requirement of future DT fusion reactors involves large helium production rates in the breeding blankets; this might impact on the conceptual design of diverse fusion power reactor units, such as Liquid Metal (LM) blankets. Low solubility, long residence-times and high production rates create the conditions for Helium nucleation, which could mean effective T sinks in LM channels. A model for helium nano-bubble formation and tritium conjugate transport phenomena in liquid Pb17.5Li and EUROFER is proposed. In a first approximation, it has been considered that He bubbles can be represented as a passive scalar. The nucleation model is based on the classical theory and includes a simplified bubble growth model. The model captures the interaction of tritium with bubbles and tritium diffusion through walls. Results show the influence of helium cavitation on tritium inventory and the importance of simulating the system walls instead of imposing fixed boundary conditions.
dc.format.extent4 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Energies::Energia nuclear::Reactors nuclears de fusió
dc.subject.lcshFusion reactors
dc.titleImplementation of two-phase tritium models for helium bubbles in HCLL breeding blanket modules
dc.subject.lemacReactors de fusió nuclear
dc.contributor.groupUniversitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorFradera, J.; Sedano, L.; Mas De Les Valls, E.; Batet, L.
upcommons.citation.publicationNameJournal of nuclear materials

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