TERMIUM Plus®

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PEBBLE BED MODULAR REACTOR [1 record]

Record 1 2017-04-19

English

Subject field(s)
  • Nuclear Fission Reactors
DEF

A particular design of pebble bed reactor [that] is fueled and moderated by fuel spheres each containing TRISO coated oxide fuel grains and a surrounding hollow sphere of graphite moderator.

CONT

These are stacked in a close packed lattice and cooled by helium, which is used to drive a turbine directly, or may be used to provide process heat for the production of hydrogen fuel. The PBMR is modular in that only small to mid-sized units [are] designed ...

French

Domaine(s)
  • Réacteurs nucléaires de fission
DEF

Réacteur à haute température refroidi au gaz de quelque 160 MW fondé sur un développement allemand [...]

OBS

Pour modérer la réaction en chaîne, il utilise du graphite pyrolytique à la place de l'eau. Pour refroidir le réacteur, il utilise un gaz semi-inerte tel que l'hélium, l'azote ou le dioxyde de carbone qui est porté à très haute température puis actionne directement une turbine.

OBS

Le combustible du PBMR est confiné dans des billes de graphite de la grandeur d'une boule de billard. Une fusion du cœur est impossible pour des raisons de physique.

Spanish

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