Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
권호 표지
DOI QR코드

DOI QR Code

INTERNATIONAL STANDARD PROBLEM 50: THE UNIVERSITY OF PISA CONTRIBUTION

  • Received : 2012.07.13
  • Published : 2012.08.25
Download PDF
⟨ Previous Next ⟩

Abstract

The present paper deals with the participation of the University of Pisa in the last International Standard Problem (ISP) focused on system thermal hydraulic, which was led by the Korean Atomic Energy Research Institution (KAERI). The selected test was a Direct Vessel Injection (DVI) line break carried out at the ATLAS facility. University of Pisa participated, together with other eighteen institutions, in both blind and open phase of the analytical exercise pursuing its methodology for developing and qualifying a nodalization. Qualitative and quantitative analysis of the code results have been performed for both ISP-50 phases, the latter adopting the Fast Fourier Transfer Based Method (FFTBM). The experiment has been characterized by three-dimensional behavior in downcomer and core region. Even though an attempt to reproduce these phenomena, by developing a fictitious three-dimensional nodalization has been realized, the obtained results were generally acceptable but not fully satisfactory in replicating 3D behavior.

Keywords

References

  1. M. Bonuccelli, F. D'Auria, N. Debrecin, G.M. Galassi "A methodology for the qualification of thermalhydraulic code nodalizations", NURETH-6 Grenoble (F) 5-8 October 1993.
  2. A. Prosek, F. D'Auria, B. Mavko, "Review of Quantitative Accuracy Assessments with Fast Fourier Transform Based Method (FFTBM)," Nuclear Engineering and Design, 217, 179 (2002). https://doi.org/10.1016/S0029-5493(02)00152-8
  3. F. D'Auria, M. Leonardi, R. Pochard, "Methodology for the evaluation of thermalhydraulic codes accuracy" Proc. Int. Conf. on New trends in Nuclear System Thermohydraulics, Pisa, pp. 467-477, 1994.
  4. W.P. Baek, C.-H. Song, B.J. Yun, T.S. Kwon, S.K. Moon and S.J. Lee, "KAERI Integral Effect Test Program and the ATLAS Design", Nuclear Technology, 152, 183-195 (2005).
  5. W.P. Baek and Y.S. Kim, "Accident Simulation ATLAS for APWRs", Nuclear Engineering International, 53, 21-25 (2008).
  6. M. Ishii, S. T. Revankar, T. Leonardi, R. Dowlati, M. L. Bertodano, et al. "The Three Level Scaling Approach with Application to the Purdue University Multidimensional Integral Test Assembly (PUMA)", Nucl. Eng. Des., 186, 177 (1998). https://doi.org/10.1016/S0029-5493(98)00222-2
  7. K. Y. Choi, Y. S. Kim, C. H. Song, and W. P. Baek "Major Achievements and Prospect of the ATLAS Integral Effect Tests" Science and Technology of Nuclear Installations Vol. 2012 (2012), Article ID 375070.
  8. K. Y. Choi et al., "Detailed Information on Actual Test Conditions and Procedures for ISP-50", KAERI Interim report (2009).
  9. K. Y. Choi et al., "ISP-50 Specifications for a Direct Vessel Injection Line Break Test with the ATLAS", KAERI/TR-3778 (2009).
  10. K.H. Kang et al., "ATLAS Facility and Instrumentation Description Report", KAERI/TR-3779, (2009).
  11. A. Del Nevo, D. Araneo, M. Cherubini, F. D'Auria, G. M. Galassi "Analysis of SBLOCA - counterpart test - in PSBVVER facility by Cathare2: quantitative/qualitative accuracy evaluation and comparison with Relap5 code" International Conference On Nuclear Engineering ICONE-13, Beijing(China), May 16-20, 2005.
  12. OECD/NEA "International Standard Problem No. 50" Final Integration report Voll. I-III, February 2012, NEA/CSNI/R(2012)6.