Accident Fault Trees for Defense Waste Processing Facility

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The purpose of this report is to document fault tree analyses which have been completed for the Defense Waste Processing Facility (DWPF) safety analysis. Logic models for equipment failures and human error combinations that could lead to flammable gas explosions in various process tanks, or failure of critical support systems were developed for internal initiating events and for earthquakes. These fault trees provide frequency estimates for support systems failures and accidents that could lead to radioactive and hazardous chemical releases both on-site and off-site. Top event frequency results from these fault trees will be used in further APET analyses to ... continued below

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Sarrack, A.G. June 22, 1999.

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Description

The purpose of this report is to document fault tree analyses which have been completed for the Defense Waste Processing Facility (DWPF) safety analysis. Logic models for equipment failures and human error combinations that could lead to flammable gas explosions in various process tanks, or failure of critical support systems were developed for internal initiating events and for earthquakes. These fault trees provide frequency estimates for support systems failures and accidents that could lead to radioactive and hazardous chemical releases both on-site and off-site. Top event frequency results from these fault trees will be used in further APET analyses to calculate accident risk associated with DWPF facility operations. This report lists and explains important underlying assumptions, provides references for failure data sources, and briefly describes the fault tree method used. Specific commitments from DWPF to provide new procedural/administrative controls or system design changes are listed in the ''Facility Commitments'' section. The purpose of the ''Assumptions'' section is to clarify the basis for fault tree modeling, and is not necessarily a list of items required to be protected by Technical Safety Requirements (TSRs).

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Medium: P; Size: vp.

Notes

INIS; OSTI as DE00008705

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  • Other Information: PBD: 22 Jun 1999

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  • Report No.: X-ESR-S-00001
  • Grant Number: AC09-89SR18035
  • DOI: 10.2172/8705 | External Link
  • Office of Scientific & Technical Information Report Number: 8705
  • Archival Resource Key: ark:/67531/metadc793325

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • June 22, 1999

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

Description Last Updated

  • May 4, 2016, 9:14 p.m.

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Sarrack, A.G. Accident Fault Trees for Defense Waste Processing Facility, report, June 22, 1999; South Carolina. (digital.library.unt.edu/ark:/67531/metadc793325/: accessed June 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.