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Analysis of Rostov-II Benchmark Using Conventional Two-Step Code Systems

Author

Listed:
  • Jaerim Jang

    (Department of Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea)

  • Mathieu Hursin

    (Nukleare Energie und Sicherheit, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland)

  • Woonghee Lee

    (Department of Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea)

  • Andreas Pautz

    (Nukleare Energie und Sicherheit, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland)

  • Marianna Papadionysiou

    (Nukleare Energie und Sicherheit, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland)

  • Hakim Ferroukhi

    (Nukleare Energie und Sicherheit, Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland)

  • Deokjung Lee

    (Department of Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea)

Abstract

This paper presents the steady state analysis of the Rostov-II benchmark using the conventional two-step approach. It involves the STREAM/RAST-K and CASMO-5/PARCS code systems. This paper documents a comprehensive code-to-code comparison between Serpent 2, CASMO-5, and STREAM at the lattice level for the different fuel assemblies (FAs) loaded in the Rostov-II core; and between Serpent 2, PARCS, and RAST-K at the core level in 2D. Finally, the 3D results of both deterministic models are compared to the steady state measurements of the Rostov-II benchmark. With respect to the measurements available in the Rostov-II benchmark, comparable accuracy (30 ppm difference in boron concentration, 2% assembly power) with an industrial calculation scheme (BIPR8) are reported up to 36.73 EFPDs. The calculations reported in the paper showed that the modeling of the resonance self-shielding in the lattice code as well as the geometrical modeling of the reflector are key for an accurate solution (reducing the in-out power tilt). At the core simulator level, a fairly crude 1D reflector model appears to be enough. Overall, this paper provides the detailed models and conditions used in STREAM/RAST-K and CASMO-5/PARCS, and accurate calculation solution for the Rostov-II benchmark with STREAM/RAST-K and CASMO-5/PARCS compared with measurement.

Suggested Citation

  • Jaerim Jang & Mathieu Hursin & Woonghee Lee & Andreas Pautz & Marianna Papadionysiou & Hakim Ferroukhi & Deokjung Lee, 2022. "Analysis of Rostov-II Benchmark Using Conventional Two-Step Code Systems," Energies, MDPI, vol. 15(9), pages 1-24, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3318-:d:807401
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    References listed on IDEAS

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    1. Jinsu Park & Jaerim Jang & Hanjoo Kim & Jiwon Choe & Dongmin Yun & Peng Zhang & Alexey Cherezov & Deokjung Lee, 2020. "RAST-K v2—Three-Dimensional Nodal Diffusion Code for Pressurized Water Reactor Core Analysis," Energies, MDPI, vol. 13(23), pages 1-21, November.
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