Tritium management is one of the most critical aspects in DEMO design. Knowledge of tritium permeation is a priority both in terms of safety and plant performance, as it may represent a radiological risk for the employed personnel and a significance loss of plasma fuel. Generally, high pressures and temperatures promotes the permeation phenomenon, which is mainly driven by partial pressure of tritium in gas phase and depends on system geometry, operative conditions and permeability of involved materials. This contribution presents a preliminary model for the calculation of partial pressures and tritium permeation flow rates inside the cooling system and the steam generator of a WCLL (Water Cooled Lead-Lithium) system. A parametric analysis was made to test the variation of key design parameters and preliminary results are shown.

Noschese, L., Santucci, A., Tosti, S., Romanelli, F. (2020). Tritium permeation modelling in DEMO WCLL cooling system. FUSION ENGINEERING AND DESIGN, 161 [10.1016/j.fusengdes.2020.112046].

Tritium permeation modelling in DEMO WCLL cooling system

Noschese, Leonardo;Romanelli, Francesco
2020-01-01

Abstract

Tritium management is one of the most critical aspects in DEMO design. Knowledge of tritium permeation is a priority both in terms of safety and plant performance, as it may represent a radiological risk for the employed personnel and a significance loss of plasma fuel. Generally, high pressures and temperatures promotes the permeation phenomenon, which is mainly driven by partial pressure of tritium in gas phase and depends on system geometry, operative conditions and permeability of involved materials. This contribution presents a preliminary model for the calculation of partial pressures and tritium permeation flow rates inside the cooling system and the steam generator of a WCLL (Water Cooled Lead-Lithium) system. A parametric analysis was made to test the variation of key design parameters and preliminary results are shown.
2020
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/07
Settore PHYS-06/A - Fisica per le scienze della vita, l'ambiente e i beni culturali
English
DEMO
Fuel cycle
Safety
Tritium permeation
WCLL
Noschese, L., Santucci, A., Tosti, S., Romanelli, F. (2020). Tritium permeation modelling in DEMO WCLL cooling system. FUSION ENGINEERING AND DESIGN, 161 [10.1016/j.fusengdes.2020.112046].
Noschese, L; Santucci, A; Tosti, S; Romanelli, F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/406707
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