MODERATOR CONTAINER FOR A HETEROGENEOUS NUCLEAR REACTOR WITH LIQUID MODERATOR
In order to keep the temperature of the liquid moderator of a heterogeneous reactor below the temperature of the coolant, which is constituted by the same liquid, the reactor vessel encloses a cylindrical moderator container with a vertical axis and cooling tubes passing parallelly through this container. In the container two deflecting cylinders are positioned, coaxially with the container, one enclosing the other partly. Cold moderator liquid is fed from outside the reactor to the bottom of the inner cylinder, from where it rises to the top of the container, passes down through the interspace bounded by the two deflecting cylinders and then rises along the inner cylindrical wall of the container and enters the interspace formed between the reactor vessel and the outer wall of the container at openings in the container wall near its upper extremity. In this latter interspace the moderator is mixed with the coolant as it flows down and the mixture then rises through the cooling tubes and removes the heat developed in the fuel elements. (NPO)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-032958
- OSTI ID:
- 4837160
- Report Number(s):
- FR 1225589
- Country of Publication:
- France
- Language:
- English
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