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Evaluation of RELAP5/MOD1 for Analysis of Steam Generator Tube Rupture Transients in OTSG Plants

  • J. R. White
  • R. T. Jensen
  • V. Chexal
  • J. Lang

Abstract

The RELAP5/MOD1, Cycle 18 code (1) was used to evaluate the system response of a Babcock and Wilcox plant having 177 fuel assemblies and a lowered loop configuration to the rupture of single tube or multiple tubes in one or both once-through steam generators (OTSGs). RELAP5 proved to be a valuable analytical tool in computing these long duration transients. Modeling of the ruptured tube and mass error accumulation were the key areas of difficulty. The areas of difficulty and final solutions are discussed.

Keywords

Fuel Assembly Steam Generator Mass Error Safety Valve Steam Generator Tube 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    V. H. Ransom, R. J. Wagner, J. A. Trapp, K. E. Carlson, D. M. Kiser, H. Kuo, H. Chow, R. A. Nelson and S. W. James, RELAP5/MOD1 Code Manual Volume 1: System Models and Numerical Methods, NUREG/CR-1826, (March, 1982).Google Scholar
  2. 2.
    Impact on an OTSG Tube Rupture with Concurrent Loss of Offsite Power, Babcock & Wilcox Nuclear Power Generation Division, B&W Technical Document 86-1118045-00, (April 1980).Google Scholar
  3. 3.
    S. L. Thompson, Thermal-Hydraulic Analysis Research Program Quarterly Report. January-March 1982, Sandia National Laboratories Report NUREG/CR-2843-Vol. 1 (October 1982).Google Scholar
  4. 4.
    S. L. Thompson, Thermal-Hydraulic Analysis Research Program Quarterly Report, July-September 1982, NUREG/CR-2843-Vol. 3, Sandia National Laboratories Report (March 1983).Google Scholar

Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • J. R. White
    • 1
  • R. T. Jensen
    • 1
  • V. Chexal
    • 2
  • J. Lang
  1. 1.Intermountain Technologies, Inc.Idaho FallsUSA
  2. 2.Nuclear Safety Analysis CenterElectric Power Research InstitutePalo AltoUSA

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