FFTF transient overpower accident: a perspective

Technical Report · Sat Feb 01 04:00:00 EST 1975

DOI:https://doi.org/10.2172/709420· OSTI ID:709420

Waltar, A E

This paper is a reflection on the current understanding of the unprotected transient overpower (TOP) accident, in order to place it in perspective with regard to FFTF core energetics. The experimental data base is addressed, wtih particular emphasis on the E and H-series data, and its relevance to axial failure location and hydraulic fuel sweepout is considered. It is shown that the only way in which TOP could lead to a sizeable energy release is if either total plugging takes place or a plug at the radial center of the subassemblies propagates to the hex can walls prior to neutronics shutdown. (DLC)

• Research Organization: Hanford Engineering Development Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 709420
• Report Number(s): HEDL-TC--228
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
EXCURSIONS
FFTF REACTOR
FUEL ELEMENT FAILURE
REACTOR ACCIDENTS