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Effect of sodium pool temperature on grapple drive stem temperatures at seals in CRBRP IVTM

Technical Report ·
DOI:https://doi.org/10.2172/6464256· OSTI ID:6464256

The effect of sodium pool temperature on the grapple drive stem temperatures at the seals of the CRBRP (Clinch River Breeder Reactor Plant) IVTM (In-Vessel Transfer Machine) has been calculated. Reducing the sodium pool temperature from 500 to 400/sup 0/F reduces the maximum grapple drive stem temperature at the seals from 510 to 472/sup 0/F on the initial up-stroke, and from 285 to 225/sup 0/F when system is at dynamic thermal equilibrium. The time the stem can remain in lowered position without stem temperature exceeding 300/sup 0/F at seals when stem is raised, increases from 4 minutes to 20 minutes, (the system being initially at dynamic thermal equilibrium).

Research Organization:
Atomics International Div., Canoga Park, CA (USA)
DOE Contract Number:
AM03-76SF00824
OSTI ID:
6464256
Report Number(s):
DOE/SF/00824-T3; TI-099-241-005; ON: DE81026921
Country of Publication:
United States
Language:
English