COMPARISON OF NOVORONEZH UNIT 5 NPP AND SOUTH UKRAINE UNIT 1 NPP LEVEL I PRA RESULTS.

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This paper describes a study undertaken to explain the risk profile differences in the results of PRAs of two similar WER-1000 nuclear power plants. The risk profile differences are particularly significant in the area of small steam/feedwater line breaks, small-small LOCAs, support system initiators and containment bypass initiators. A top level (limited depth) approach was used in which we studied design differences, major assumptions, data differences, and also compared the two PRA analyses on an element-by-element basis in order to discern the major causative factors for the risk profile differences. We conclude that the major risk profile differences are due ... continued below

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10 pages

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MUSICKI,Z. & GINSBERG,T. April 18, 2002.

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Description

This paper describes a study undertaken to explain the risk profile differences in the results of PRAs of two similar WER-1000 nuclear power plants. The risk profile differences are particularly significant in the area of small steam/feedwater line breaks, small-small LOCAs, support system initiators and containment bypass initiators. A top level (limited depth) approach was used in which we studied design differences, major assumptions, data differences, and also compared the two PRA analyses on an element-by-element basis in order to discern the major causative factors for the risk profile differences. We conclude that the major risk profile differences are due to differences in assumptions and engineering judgment (possibly combined with some design and data differences) involved in treatment of uncertain physical phenomena (primarily sump plugging in LOCAs and turbine building steaming effects in secondary system breaks). Additional major differences are attributable to support system characteristics.

Physical Description

10 pages

Notes

INIS; OSTI as DE00794088

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  • 10TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, ARLINGTON, VA (US), 04/14/2002--04/18/2002

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  • Report No.: BNL--69087
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 794088
  • Archival Resource Key: ark:/67531/metadc734588

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 18, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • Nov. 6, 2015, 11:07 p.m.

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MUSICKI,Z. & GINSBERG,T. COMPARISON OF NOVORONEZH UNIT 5 NPP AND SOUTH UKRAINE UNIT 1 NPP LEVEL I PRA RESULTS., article, April 18, 2002; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc734588/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.