Next Generation Nuclear Plant Defense-in-Depth Approach

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The purpose of this paper is to (1) document the definition of defense-in-depth and the pproach that will be used to assure that its principles are satisfied for the NGNP project and (2) identify the specific questions proposed for preapplication discussions with the NRC. Defense-in-depth is a safety philosophy in which multiple lines of defense and conservative design and evaluation methods are applied to assure the safety of the public. The philosophy is also intended to deliver a design that is tolerant to uncertainties in knowledge of plant behavior, component reliability or operator performance that might compromise safety. This paper ... continued below

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Wallace, Edward G.; Fleming, Karl N. & Burns, Edward M. December 1, 2009.

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Description

The purpose of this paper is to (1) document the definition of defense-in-depth and the pproach that will be used to assure that its principles are satisfied for the NGNP project and (2) identify the specific questions proposed for preapplication discussions with the NRC. Defense-in-depth is a safety philosophy in which multiple lines of defense and conservative design and evaluation methods are applied to assure the safety of the public. The philosophy is also intended to deliver a design that is tolerant to uncertainties in knowledge of plant behavior, component reliability or operator performance that might compromise safety. This paper includes a review of the regulatory foundation for defense-in-depth, a definition of defense-in-depth that is appropriate for advanced reactor designs based on High Temperature Gas-cooled Reactor (HTGR) technology, and an explanation of how this safety philosophy is achieved in the NGNP.

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  • Report No.: INL/EXT-09-17139
  • Grant Number: DE-AC07-05ID14517
  • DOI: 10.2172/971362 | External Link
  • Office of Scientific & Technical Information Report Number: 971362
  • Archival Resource Key: ark:/67531/metadc929187

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  • December 1, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Jan. 4, 2017, 2:23 p.m.

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Wallace, Edward G.; Fleming, Karl N. & Burns, Edward M. Next Generation Nuclear Plant Defense-in-Depth Approach, report, December 1, 2009; [Idaho]. (digital.library.unt.edu/ark:/67531/metadc929187/: accessed July 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.