Ponente
Descripción
One of the most relevant objectives of the Liquid Breeder Validation Module is the study of tritium permeation through structural materials considered for future nuclear fusion power plants, as well as the effect of permeation barriers applied to these materials.
Permeation is mainly affected by the temperature of the wall through which it occurs, following Arrhenius-type relationships. Therefore, temperature control is of utmost importance in order to maintain high temperatures at surfaces where permeation is desired, while keeping low temperatures at other surfaces intended to act as confinement barriers.
On the other hand, a capsule design for the module should be as compact as possible, so that the largest possible number of capsules can be accommodated, thus maximizing the utilization of the irradiation volume available in the Test Cell of IFMIF DONES.
The geometric configuration, including capsule dimensions, experimental tube geometry, and container dimensions, together with purge He and cooling He flow rates involves multiple design requirements. These include consideration of different heat transfer mechanisms (conduction, convection, and radiation), as well as a realistic and adjustable electrical power input.
The presentation will describe the considered factors, boundary conditions, governing equations, and the results obtained.