Analysis of a passive ex-vessel core retention device during a postulated core melt event [electronic resource].
- Upton, N.Y. : Brookhaven National Laboratory, 1980. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 16 : digital, PDF file
- Additional Creators:
- Brookhaven National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- An assessment has been carried out on the penetration of a molten core into a passive ex-vessel retention device (constructed from MgO). The MELSAC computer code has been developed to model molten UO/sub 2/ penetrating MgO. The model also accounts for the feedback effect of heating-up surrounding structures. The sensitivity of MgO penetration and heating-up of structures to a range of MELSAC input variables was evaluated. The scoping study indicated that the amount of heat that can be rejected to structures above the pool tends to control the penetration of MgO. The installation of a core retention device greatly increases the time at which a molten core would be released from containment. However, structures in the reactor cavity would have to be protected to prevent damage by thermal radiation from the pool surface.
- Published through SciTech Connect., 01/01/1980., "bnl-nureg-27594", " conf-800403-44", "TI85003570", ANS thermal reactor safety meeting, Knoxville, TN, USA, 8 Apr 1980., and Pratt, W.T.; Gasser, R.D.
- Funding Information:
View MARC record | catkey: 14369349