En 2009, 436 réacteurs nucléaires étaient en exploitation dans le monde.
de ces réacteurs dataient de 20 ans et 25 % dataient d'au moins 30 ans.
États-Unis, 80 % des réacteurs existants ont fait l'objet d'une prolongation d'utilisation
ou d'une remise en état de fonctionner. Nomme deux risques associés à cette situation.

Answers

Answer 1

La situation décrite, avec un grand nombre de réacteurs nucléaires en exploitation depuis plus de 20 ans, présente deux risques potentiels :

Les réacteurs et son risques

Les réacteurs nucléaires qui atteignent ou dépassent leur durée de vie prévue peuvent présenter un risque accru de vieillissement et de défaillance des équipements. Les composants essentiels tels que les systèmes de refroidissement, les générateurs de vapeur et les cuves de réacteur peuvent se détériorer au fil du temps, ce qui augmente le risque de panne ou d'accident potentiel.

Les réacteurs nucléaires plus anciens peuvent être moins bien équipés pour faire face à des incidents graves tels que les accidents de fusion du cœur. Les technologies de sécurité et les normes de conception ont évolué depuis la mise en service de nombreux réacteurs, ce qui signifie que les réacteurs plus anciens pourraient ne pas bénéficier des mêmes niveaux de sécurité et de résistance aux accidents que les réacteurs plus récents.

Il est essentiel de mettre en place des programmes de maintenance et de modernisation appropriés, et de garantir la conformité aux normes de sécurité nucléaire les plus récentes pour minimiser les risques potentiels associés à leur exploitation prolongée.

En savoir plus sur réacteurs nucléaires ici:

https://brainly.com/question/30584773

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