Article ID Journal Published Year Pages File Type
273627 Fusion Engineering and Design 2007 8 Pages PDF
Abstract

A local finite element modelling of the tritium permeation through the HCLL breeder unit cooling plates is presented. The tritium concentration in the helium and in the lithium lead are evaluated by solving partial differential equations governing the tritium balance, the thermal field and the lithium lead velocity field in a simplified 2D-geometrical representation of the breeder unit at the mid-equatorial plan. Using a factorial design at two levels as numerical experiments it is shown that the magnetic field and the natural convection are not relevant for the estimation of the permeation. Moreover, numerical analyses showed a developed concentration boundary layer acting as a mass transfer resistance which is equivalent to a PRF of 30.

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Physical Sciences and Engineering Energy Energy Engineering and Power Technology
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