Probabilities of inherent shutdown of unprotected events in innovative liquid metal reactors

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The uncertainty in predicting the effectiveness of inherent shutdown in innovative liquid metal cooled reactors with metallic fuel results from three broad contributing areas of uncertainty: (1) the inability to exactly predict the frequency of ATWS events with potential to challenge the safety systems and require inherent shutdown; (2) the approximation of representing all such events by a selected set of ''generic scenarios''; and (3) the inability to exactly calculate the core response to the selected generic scenarios. This paper discusses the work being done to address each of these contributing areas, identifies the design and research approaches being used ... continued below

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Pages: 12

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Mueller, C.J. & Wade, D.C. January 1, 1988.

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Description

The uncertainty in predicting the effectiveness of inherent shutdown in innovative liquid metal cooled reactors with metallic fuel results from three broad contributing areas of uncertainty: (1) the inability to exactly predict the frequency of ATWS events with potential to challenge the safety systems and require inherent shutdown; (2) the approximation of representing all such events by a selected set of ''generic scenarios''; and (3) the inability to exactly calculate the core response to the selected generic scenarios. This paper discusses the work being done to address each of these contributing areas, identifies the design and research approaches being used at Argonne National Laboratory to reducing the key contributions to uncertainties in inherent shutdown, and presents results. The conditional probabilities (given ATWS initiation) of achieving temperatures capable of defeating inherent shutdown are shown to range from /approximately/0.1% to negligible for current designs.

Physical Description

Pages: 12

Notes

NTIS, PC A03/MF A01; 1.

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  • Safety of next generation power reactors, Seattle, WA, USA, 1 May 1988

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  • Other: DE88009946
  • Report No.: CONF-880506-3
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5017816
  • Archival Resource Key: ark:/67531/metadc1061430

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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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  • January 1, 1988

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 26, 2018, 3:37 p.m.

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Mueller, C.J. & Wade, D.C. Probabilities of inherent shutdown of unprotected events in innovative liquid metal reactors, article, January 1, 1988; Illinois. (digital.library.unt.edu/ark:/67531/metadc1061430/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.