PORTO @ 
Archivio Istituzionale della Ricerca
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishIn a fusion power demonstration plant (DEMO), the development of a tritium transport model is mandatory inorder to correctly predict the tritium concentration inside the liquid metal, the permeatedflux through thestructural materials and into the coolant, playing a fundamental role in guaranteeing tritium self-sufficiency inthe fusion reactor and safety both for the workers and for the external environment. In the present work, a multi-physics 3D tritium transport model has been assessed for a single breeder unit located in the outboard equatorialmodule of the Water-Cooled Lithium Lead (WCLL) breeding blanket of DEMO, adopting an approach that per-mits to have a modelling tool able to be adaptive within certain margins to changes in operating parameters andgeometry. The transport has been modelled considering advection-diffusion of tritium into the lead-lithiumeutectic alloy, transfer of tritium from the liquid interface towards the steel (adsorption/desorption), diffusion oftritium inside the steel, transfer of tritium from the steel towards the coolant (recombination/dissociation),advection-diffusion of diatomic tritium into the coolant. The effect of buoyancy forces, which arise due totemperature variation, has been also considered. Under the above-specified phenomena, tritium concentrations,inventories and losses have been derived.
Tritium transport model at breeder unit level for WCLL breeding blanket / Candido, Luigi; Testoni, Raffaella; Utili, Marco; Zucchetti, Massimo. - In: FUSION ENGINEERING AND DESIGN. - ISSN 0920-3796. - STAMPA. - (2019).
| Titolo: | Tritium transport model at breeder unit level for WCLL breeding blanket |
| Autori: | |
| Data di pubblicazione: | 2019 |
| Rivista: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.fusengdes.2019.02.041 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 2019_Tritium transport model at breeder unit level for WCLL breeding blanket.pdf | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia | |
| 2019_Tritium Transport Model at Breeder Unit Level for WCLL_copia referata.pdf | 2. Post-print / Author's Accepted Manuscript |  | Embargo: 15/02/2021 Richiedi una copia |
http://hdl.handle.net/11583/2729090
Copyright © 2021