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ALMOD4: Advanced PWR Transient Analysis Code

  • A. Schaefer
  • J. E. Miró
  • G. Hoeppner
  • W. Frisch
  • R. Meissner
  • U. Gaal

Abstract

ALMOD4 is a PWR-plant model suitable for the analysis of anticipated and abnormal operational transients and small break events. For this purpose a detailed description of all important components and control systems is necessary, also high computational speed is important. The nature of the thermal-hydraulic processes involved with these types of transients allows the treatment of the fluid-dynamics to be less complex than in the blow-down codes (e. g. thermal equilibrium).

Keywords

Steam Generator Coarse Mesh Pressurizer Relief Valve Primary Pressure Secondary Pressure 
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.
    W. Frisch, K.D. Schmidt, “A PWR Plant Model for the Analysis of Large Amplitude Transients,” 3rd Power Plant Dynamics, Control and Testing Symposium, Knoxville, Tennessee, Sept. 7-9, 1977.Google Scholar
  2. 2.
    A. Schaefer, W. Frisch, W. Grzesik, “Use of Plant Transients Models for the Investigation of Small Breaks in a PWR,” ANS Specialists Meeting on Small Break Loss-of-Coolant Accident Analysis in LWRs, Monterey, California, Aug. 25-27, 1981.Google Scholar
  3. 3.
    E. Hofer, “A Partially Implicit Method for Large Stiff Systems of ODEs with Only Few Equations Introducing Small Time-Constants,” SIAM J. Num. Anal., Vol. 13, No. 5, 1926.Google Scholar
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    P. Romstedt and W. Werner, “Efficient High-Order Method for the Solution of Fluid Dynamics Equations,” NSE 64, (1977). pp. 208-218.Google Scholar
  5. 5.
    U. Graf, J. Miró, A. Schaefer, W. Werner, “Application of a Discontinuity-Tracking-Technique to Thermal-Hydraulics Analysis,” ANS/ AICHE/ASME 2nd International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, Santa Barbara, California, Jan. 11-14, 1983.Google Scholar

Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • A. Schaefer
    • 1
  • J. E. Miró
    • 1
  • G. Hoeppner
    • 1
  • W. Frisch
    • 1
  • R. Meissner
    • 1
  • U. Gaal
    • 1
  1. 1.ForschungsgeländeGesellschaft für ReaktorsicherheitGarchingGermany

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