Total-System Analyzer for performance assessment of Yucca Mountain

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The Total-System Analyzer is a modular computer program for probabilistic total-system performance calculations. The code employs stratified random sampling from model parameter distribution functions to generate multiple realizations of the system. The results of flow and transport calculations for each realization are combined into a probability distribution function of the system response as indicated by the performance measure. We give a detailed description of the code and present results for four example problems simulating the release of radionuclides from a proposed high-level-waste repository at Yucca Mountain, Nevada. The example simulations illustrate the impact of significant variation of percolation flux and ... continued below

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34 p.

Creation Information

Wilson, M. L.; Lauffer, F. C.; Cummings, J. C. & Zieman, N. B. December 1990.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The Total-System Analyzer is a modular computer program for probabilistic total-system performance calculations. The code employs stratified random sampling from model parameter distribution functions to generate multiple realizations of the system. The results of flow and transport calculations for each realization are combined into a probability distribution function of the system response as indicated by the performance measure. We give a detailed description of the code and present results for four example problems simulating the release of radionuclides from a proposed high-level-waste repository at Yucca Mountain, Nevada. The example simulations illustrate the impact of significant variation of percolation flux and sorption on radionuclide releases. We discuss the effects of numerical sampling error and of correlations among the model parameters. 20 refs., 7 figs., 2 tabs.

Physical Description

34 p.

Notes

INIS; OSTI as DE91005967

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  • 2. annual American Nuclear Society (ANS) international high level radioactive waste management conference, Las Vegas, NV (United States), 28 Apr - 3 May 1991

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  • Other: DE91005967
  • Report No.: SAND--90-2248C
  • Report No.: CONF-910435--29
  • Grant Number: AC04-76DP00789
  • Office of Scientific & Technical Information Report Number: 137979
  • Archival Resource Key: ark:/67531/metadc622290

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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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  • December 1990

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  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 1:52 p.m.

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Wilson, M. L.; Lauffer, F. C.; Cummings, J. C. & Zieman, N. B. Total-System Analyzer for performance assessment of Yucca Mountain, article, December 1990; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc622290/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.