TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

In contrast to the prismatic fuel, the coated particles are homogeneously distributed within the spherical fuel matrix, which acts as the moderator. There are two generic concepts for pebble bed reactors in terms of refueling.... Another type is the once through then out(OTTO) concept where the pebbles only perform one passage through the core. For the on-line refueling designs, the pebbles are circulated by gravity in the core, which is surrounded by a graphite reflector and pneumatically transported in the fuel handling system.  1, record 1, English, - once%20through%20then%20out%20concept

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Cœur à boulets [...] Les promoteurs de ce genre de réacteur [THTR 300] ont imaginé une simplification du système de manutention, qui consiste à faire passer chaque boulet une seule fois dans le cœur (variante OTTO ou once through then out). Il suffit alors de recueillir, dans une sorte de pondoir, les boulets usagés, mais si l'on gagne en simplicité du système, la combustion massique du combustible déchargé n'est plus uniforme et l'utilisation du combustible n'est donc pas optimale.  2, record 1, French, - concept%20du%20passage%20unique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Commercial reprocessing plants contain dissolvers based on one of two principles : batch operation or continuous operation using an apparatus with rotating mechanical parts. In a typical batch dissolver the fuel is sheared into a large basket which is immersed in the dissolver vessel. After the fuel has been leached, the basket is removed from the dissolver using a crane and then tipped to transfer the hulls and other debris to the encapsulation plant. This system requires extensive mechanical handling of the dissolver basket which is heavy and needs a large amount of maintainable equipment in the shielded dissolver cell.  1, record 2, English, - batch%20dissolver

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Dissolution du combustible. Étape clef du procédé, la dissolution a pour but de faire passer en solution nitrique le plus complètement possible les éléments (uranium et plutonium principalement) contenus dans les combustibles irradiés afin de pouvoir les récupérer et les purifier à l'aide du procédé PUREX [...] Les dissolveurs peuvent se classer en deux catégories selon leur mode de fonctionnement, discontinu ou continu [...] Dissolveurs discontinus [...]  1, record 2, French, - dissolveur%20discontinu

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The fuel handling system is responsible for fuel changing and storage of new and spent fuel.  1, record 3, English, - fuel%20handling%20system

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Le système de manutention du combustible est destiné au chargement et au stockage du combustible neuf et épuisé.  1, record 3, French, - syst%C3%A8me%20de%20manutention%20du%20combustible

Record 3,  Textual support,  Spanish