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Author : T. Ellermann
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (475 download)
Download or read book Atmospheric Dispersion at a Nuclear Power Plant Building written by T. Ellermann and published by . This book was released on 1994 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : International Atomic Energy Agency
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.3/5 (91 download)
Download or read book Atmospheric Dispersion in Nuclear Power Plant Siting written by International Atomic Energy Agency and published by . This book was released on 1980 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The guide addresses the meteorological investigations needed at different stages in a site survey, in site evaluation and in assessing off-site consequences of operational states and accident conditions. It covers meteorological phenomena and mechanisms involved in the dispersion of radioactive effluents, calculation methods for concentration and deposition, input data needed for calculations, meteorological instrumentation requirements, data analysis system requirements and other related topics.
Author : U.S. Atomic Energy Commission
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.3/5 ( download)
Download or read book General Environmental Siting Guides for Nuclear Power Plants written by U.S. Atomic Energy Commission and published by . This book was released on 1973 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Assessment for Decontamination of the Three Mile Island Unit 2 Reactor Building Atmosphere written by and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PAVAN written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a user's guide for the NRC computer program, PAVAN, which is a program used by the US Nuclear Regulatory Commission to estimate downwind ground-level air concentrations for potential accidental releases of radioactive material from nuclear facilities. Such an assessment is required by 10 CFR Part 100 and 10 CFR Part 50. The program implements the guidance provided in Regulatory Guide 1.145, Atmospheric Dispersion Models for Potential Accident Consequence Assessments at Nuclear Power Plants. Using joint frequency distributions of wind direction and wind speed by atmospheric stability, the program provides relative air concentration (X/Q) values as functions of direction for various time periods at the exclusion area boundary (EAB) and the outer boundary of the low population zone (LPZ). Calculations of X/Q values can be made for assumed ground-level releases (e.g., through building penetrations and vents) or elevated releases from free-standing stacks. Various options may be selected by the user. They can account for variation in the location of release points, additional plume dispersion due to building wakes, plume meander under low wind speed conditions, and adjustments to consider non-straight trajectories. It computes an effective plume height using the physical release height which can be reduced by inputted terrain features. It cannot handle multiple emission sources. A description of the main program and all subroutines is provided. Also included as appendices are a complete listing of the program and two test cases with the required data inputs and the resulting program outputs.
Author : 程明錦
Publisher : Open Dissertation Press
ISBN 13 : 9781374742666
Total Pages : 518 pages
Book Rating : 4.7/5 (426 download)
Download or read book REGIONAL ATMOSPHERIC DISPERSIO written by 程明錦 and published by Open Dissertation Press. This book was released on 2017-01-27 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "A Regional Atmospheric Dispersion Model for Daya Bay Nuclear Power Station" by 程明錦, Ming-kam, Eric, Ching, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3120963 Subjects: Atmospheric diffusion - Environmental aspects Nuclear power plants - Environmental aspects Radioactive pollution of the atmosphere
Author : Environmental Research Laboratories (U.S.)
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (133 download)
Download or read book A Program for Evaluating Atmospheric Dispersion from a Nuclear Power Station written by Environmental Research Laboratories (U.S.) and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert N. Meroney
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book Wind-tunnel Measurements of Dispersion and Turbulence in the Wakes of Nuclear Reactor Plants written by Robert N. Meroney and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program for Evaluating Atmospheric Dispersion from a Nuclear Power Station written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (31 download)
Download or read book Summary Report on the NCAQ Atmospheric Dispersion Modeling Panel written by and published by . This book was released on 1980 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ming-kam Ching (Eric)
Publisher :
ISBN 13 :
Total Pages : 1014 pages
Book Rating : 4.:/5 (513 download)
Download or read book A Regional Atmospheric Dispersion Model for Daya Bay Nuclear Power Station written by Ming-kam Ching (Eric) and published by . This book was released on 1990 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. Bruce Turner
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (25 download)
Download or read book Workbook of Atmospheric Dispersion Estimates written by D. Bruce Turner and published by . This book was released on 1969 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Program for Evaluating Atmospheric Dispersion from a Nuclear Power Station. Technical Memo written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. Walsh
Publisher :
ISBN 13 : 9780859514873
Total Pages : 87 pages
Book Rating : 4.5/5 (148 download)
Download or read book Atmospheric Dispersion from Releases in the Vicinity of Buildings written by C. Walsh and published by . This book was released on 2002 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (683 download)
Download or read book A Simplified Model for Calculating Atmospheric Radionuclide Transport and Early Health Effects from Nuclear Reactor Accidents written by and published by . This book was released on 1995 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: During certain hypothetical severe accidents in a nuclear power plant, radionuclides could be released to the environment as a plume. Prediction of the atmospheric dispersion and transport of these radionuclides is important for assessment of the risk to the public from such accidents. A simplified PC-based model was developed that predicts time-integrated air concentration of each radionuclide at any location from release as a function of time integrated source strength using the Gaussian plume model. The solution procedure involves direct analytic integration of air concentration equations over time and position, using simplified meteorology. The formulation allows for dry and wet deposition, radioactive decay and daughter buildup, reactor building wake effects, the inversion lid effect, plume rise due to buoyancy or momentum, release duration, and grass height. Based on air and ground concentrations of the radionuclides, the early dose to an individual is calculated via cloudshine, groundshine, and inhalation. The model also calculates early health effects based on the doses. This paper presents aspects of the model that would be of interest to the prediction of environmental flows and their public consequences.
Author :
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (871 download)
Download or read book Use and Application of the ARCON96 Dispersion Model at the Y-12 Complex written by and published by . This book was released on 2001 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Atmospheric Dispersion Coefficients and Radiological/toxicological Exposure Methodology for Use in Tank Farms written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the general methodology of calculating the atmospheric dispension coefficients ([chi]/Q[prime]s) to be used in the safety basis documents for the tank farm facilities. Values of[chi]/Q[prime] given in this report were generated using the GXQ code Version 4.0F, which reproduces the statistical treatment of the Hanford Site joint frequency meteorology specified in U.S. Nuclear Regulatory Commission Guide (NRC) 1.145, ''Atmospheric Dispersion Models for Potential Accident Consequence Assessments ut Nuclear Power Plants''. GXQ is documented in WHC-SD-GN-SWD-30002, GXQ 4.0 Program Users' Guide, and a listing of the code is shown in Appendix A. Alternate calculations used to verify the GXQ results are contained in the appendices. The alternate calculations are included to demonstrate compliance with Nuclear Quality Assurance (NQA)-1 requirements for software use. Calculation of the basic dispersion parameters used at the tank farms is discussed in Section 2.2 with results given in Section 2.2.6. Specific assumptions and input used to generate the[chi]/Q[prime]s at the tank farms are discussed. The logarithmic interpolation procedure used to generate[chi]/Q[prime]s used for long-duration (>2 hr) releases is described in detail. A sample input file and a set of run files are listed in Appendix B. Modifications to the basic dispersion coefficients to account for plume depletion, momentum/thermal plume rise, and large source effects are discussed in Section 2.3 with examples calculated. Corresponding sample run files are listed in Appendix C. The GXQ results were verified using a set of alternate calculations documented in Chapter 3.0. Special GXQ run files used in the independent verification are listed in Appendices D, E, and F. Chapters 4.0 and 5.0 present detailed discussions of the procedures used to estimate radiological and toxicological exposures using the dispersion coefficients developed in Chapters 2.0 and 3.0. Additional[chi]/Q[prime] values that were requested to support the documented safety analysis (DSA) are included as Appendices G, H, I, and J. Future requests for[chi]/Q[prime]s will be documented as additional appendices to this report.
