Release of water trapped in damaged fuel subsurface voids

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Description

Uranium metal reacts actively with water to produce uranium oxide and hydrogen gas, and radiolysis of water also produces hydrogen in fuel containers. These fuel reactivities increase the potential for over pressurization and pyrophoric events during storage. Flow rate calculations were undertaken to examine the problem of the release of water trapped in subsurface voids during the vacuum drying for damaged fuel. To calculate the flow rates of the water vapor, five flow models are developed based on the kinetic theory of gases. The difference between the vapor pressure and the operating pressure provides the driving force for crevice water ... continued below

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64 p.

Creation Information

Huang, F.F. April 27, 1998.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Fluor Daniel Hanford, Inc.
    Publisher Info: Fluor Daniel Hanford, Inc., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

Uranium metal reacts actively with water to produce uranium oxide and hydrogen gas, and radiolysis of water also produces hydrogen in fuel containers. These fuel reactivities increase the potential for over pressurization and pyrophoric events during storage. Flow rate calculations were undertaken to examine the problem of the release of water trapped in subsurface voids during the vacuum drying for damaged fuel. To calculate the flow rates of the water vapor, five flow models are developed based on the kinetic theory of gases. The difference between the vapor pressure and the operating pressure provides the driving force for crevice water removal. Gas flow is divided into three types: viscous flow, molecular flow, and slip flow in the transition range. These calculations were focused on assessing that measured moisture release from the whole element drying studies currently in progress includes any water that may be trapped in subsurface voids.

Physical Description

64 p.

Notes

INIS; OSTI as DE99050658

Source

  • Other Information: PBD: 27 Apr 1998

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  • Other: DE99050658
  • Report No.: HNF--2191
  • Grant Number: AC06-96RL13200
  • DOI: 10.2172/353289 | External Link
  • Office of Scientific & Technical Information Report Number: 353289
  • Archival Resource Key: ark:/67531/metadc679004

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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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Creation Date

  • April 27, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • June 13, 2016, 8:44 p.m.

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Huang, F.F. Release of water trapped in damaged fuel subsurface voids, report, April 27, 1998; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc679004/: accessed April 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.