Mass Transfer Model for a Breached Waste Package

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Description

The degradation of waste packages, which are used for the disposal of spent nuclear fuel in the repository, can result in configurations that may increase the probability of criticality. A mass transfer model is developed for a breached waste package to account for the entrainment of insoluble particles. In combination with radionuclide decay, soluble advection, and colloidal transport, a complete mass balance of nuclides in the waste package becomes available. The entrainment equations are derived from dimensionless parameters such as drag coefficient and Reynolds number and based on the assumption that insoluble particles are subjected to buoyant force, gravitational force, ... continued below

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15 pages

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Hsu, C. & McClure, J. July 26, 2004.

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Description

The degradation of waste packages, which are used for the disposal of spent nuclear fuel in the repository, can result in configurations that may increase the probability of criticality. A mass transfer model is developed for a breached waste package to account for the entrainment of insoluble particles. In combination with radionuclide decay, soluble advection, and colloidal transport, a complete mass balance of nuclides in the waste package becomes available. The entrainment equations are derived from dimensionless parameters such as drag coefficient and Reynolds number and based on the assumption that insoluble particles are subjected to buoyant force, gravitational force, and drag force only. Particle size distributions are utilized to calculate entrainment concentration along with geochemistry model abstraction to calculate soluble concentration, and colloid model abstraction to calculate colloid concentration and radionuclide sorption. Results are compared with base case geochemistry model, which only considers soluble advection loss.

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15 pages

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INIS; OSTI as DE00837691

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  • Journal Name: Mass Transfer Model for a Breached Waste Package

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  • Report No.: NONE
  • Grant Number: NONE
  • Office of Scientific & Technical Information Report Number: 837691
  • Archival Resource Key: ark:/67531/metadc779383

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  • July 26, 2004

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Feb. 10, 2016, 6:20 p.m.

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Hsu, C. & McClure, J. Mass Transfer Model for a Breached Waste Package, article, July 26, 2004; Las Vegas, Nevada. (digital.library.unt.edu/ark:/67531/metadc779383/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.