Use and Application of the ARCON96 Dispersion Model at the Y-12 Complex

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Description

The Atmospheric Relative Concentrations in Building Wakes computer code (ARCON96) was developed for the U.S. Nuclear Regulatory Commission (NRC) to calculate normalized concentrations in plumes from nuclear power plants at control room air intakes in the vicinity of hypothetical accidental releases. ARCON96 implements a straight-line Gaussian dispersion model with dispersion coefficients that are modified to account for low-wind-speed meander and building wake effects. These two modifications to the dispersion coefficients were benchmarked and justified in the ARCON96 code documentation. The code calculates {chi}/Q values (normalized concentrations) consistent with the methodology defined in NRC Regulatory Guide (RG) 1.145, position 3. Based ... continued below

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17 pages

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Walker, D. A.; Lee, D. W. & Miller, R. L. June 4, 2001.

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  • Oak Ridge Y-12 Plant
    Publisher Info: Oak Ridge Y-12 Plant, TN (United States)
    Place of Publication: Tennessee

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Description

The Atmospheric Relative Concentrations in Building Wakes computer code (ARCON96) was developed for the U.S. Nuclear Regulatory Commission (NRC) to calculate normalized concentrations in plumes from nuclear power plants at control room air intakes in the vicinity of hypothetical accidental releases. ARCON96 implements a straight-line Gaussian dispersion model with dispersion coefficients that are modified to account for low-wind-speed meander and building wake effects. These two modifications to the dispersion coefficients were benchmarked and justified in the ARCON96 code documentation. The code calculates {chi}/Q values (normalized concentrations) consistent with the methodology defined in NRC Regulatory Guide (RG) 1.145, position 3. Based on recent U. S. Department of Energy (DOE) acceptance of NRC RG 1.145, position 3 methodology for performing accident dispersion analyses, BWXT Y-12 L.L.C. evaluated the potential use and application for performing dispersion analyses at the Y-12 Complex. Using site specific meteorology inputs, a generic analysis (assuming ground-level releases) was performed to develop site-wide normalized concentrations for various distances to be used in consequence screening analyses. Additionally, the results were compared to other dispersion analysis models for confirmation of the results.

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17 pages

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  • Journal Name: 2001 American Nuclear Society (ANS) Annual Meeting; Other Information: Submitted to 2001 American Nuclear Society (ANS) Annual Meeting

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  • Report No.: Y/FSD-18
  • Grant Number: AC05-00OR22800
  • Office of Scientific & Technical Information Report Number: 781255
  • Archival Resource Key: ark:/67531/metadc715566

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  • June 4, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • May 6, 2016, 3:07 p.m.

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Walker, D. A.; Lee, D. W. & Miller, R. L. Use and Application of the ARCON96 Dispersion Model at the Y-12 Complex, article, June 4, 2001; Tennessee. (digital.library.unt.edu/ark:/67531/metadc715566/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.