Examination of relocated fuel debris adjacent to the lower head of the TMI-2 reactor vessel | Zendy

D.W. Akers | Zendy; S.M. Jensen | Zendy; B.K. Schuetz | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Examination of relocated fuel debris adjacent to the lower head of the TMI-2 reactor vessel

Author(s) -

D.W. Akers,

S.M. Jensen,

B.K. Schuetz

Publication year - 1994

Language(s) - English

Resource type - Reports

DOI - 10.2172/10140801

Subject(s) - corium , debris , plenum space , head (geology) , reactor pressure vessel , slurry , homogeneous , metallurgy , materials science , environmental science , forensic engineering , geology , nuclear engineering , engineering , composite material , mechanical engineering , physics , mechanics , heat transfer , thermodynamics , oceanography , geomorphology

As part of the Three Mile Island Unit 2 (TMI-2) Vessel Investigation Project, funded by the Organization for Economic Cooperation and Development, physical, metallurgical, and radiochemical examinations were performed on samples of previously molten material that had relocated to the lower plenum of the TMI-2 reactor during the accident of 28 March 1979. This report presents the results of those examinations and some limited analysis of these results as required for the interpretation of the data. Principal conclusions of the examinations are that the bulk lower head debris is homogeneous and composed primarily of (U,Zr)O{sub 2}. This molten material reached temperatures greater than 2,600 C and probably reached the lower head as a liquid or slurry at temperatures below the peak temperature. A debris bed was formed, which was composed of particular debris above a monolithic melt that solidified on the lower head.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research