The TMI-2 core relocation: Heat transfer and mechanism

Technical Report · Wed Jul 01 04:00:00 EDT 1987

OSTI ID:5488473

Epstein, M; Fauske, H K

It is postulated that the collapse of the upper debris bed was the main cause of core failure and core material relocation during the TMI-2 accident. It is shown that this mechanism of core relocation can account for the timescale(s) and energy transfer rate inferred from plant instrumentation. Additional analysis suggests that the water in the lower half of the reactor vessel was subcooled at the onset of relocation, as subcooling serves to explain the final coolable configuration at the bottom of the TMI vessel.

• Research Organization: Fauske and Associates, Inc., Burr Ridge, IL (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 5488473
• Report Number(s): EGG-TMI-7956; ON: DE88006794
• Country of Publication: United States
• Language: English

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