Calculations to estimate the margin to failure in the TMI-2 vessel

Technical Report · Tue Mar 01 00:00:00 EST 1994

DOI:https://doi.org/10.2172/10144034· OSTI ID:10144034

Stickler, L A; Rempe, J L; Chavez, S A; Thinnes, G L; Snow, S D ^[1]; Witt, R J; Corradini, M L; Kos, J A ^[2]

---

1. EG&G Idaho, Inc., Idaho Falls, ID (United States)
2. Univ. of Wisconsin, Madison, WI (United States)

As part of the OECD-sponsored Three Mile Island Unit 2 (TMI-2) Vessel Investigation Project (VIP), margin-to-failure calculations for mechanisms having the potential to threaten the integrity of the vessel were performed to improve understanding of events that occurred during the TMI-2 accident. Analyses considered four failure mechanisms: tube rupture, tube ejection, global vessel failure, and localized vessel failure. Calculational input was based on data from the TMI-2 VIP examinations of the vessel steel samples, the instrument tube nozzles, and samples of the hard layer of debris found on the TMI-2 vessel lower head. Sensitivity studies were performed to investigate the uncertainties in key parameters for these analyses.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Systems Research; EG and G Idaho, Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: Nuclear Regulatory Commission, Washington, DC (United States)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 10144034
• Report Number(s): NUREG/CR-6196; EGG-2733; ON: TI94010313; IN: TMI V(93)EG01; TRN: 94:008593
• Resource Relation: Other Information: PBD: Mar 1994
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
THREE MILE ISLAND-2 REACTOR
REACTOR ACCIDENTS
REACTOR VESSELS
FAILURES
REACTOR COMPONENTS
FISSION PRODUCTS
210200
220900
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
NONBOILING WATER COOLED
REACTOR SAFETY