Validation of trace code for flashing-induced density wave oscillations in SIRIUS-N facility, which simulates ESBWR

Masahiro Furuya, Yoshihisa Nishi, Nobuyuki Ueda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The TRACE code was validated against the flashing-induced density wave oscillation in the SIRIUS-N facility at low pressure (from 0.1 to 0.5 MPa) as a part of the international CAMP-Program of USNRC. The SIRIUS-N facility is a scaled copy of natural circulation BWR (ESBWR). Stability map of TRACE agrees with that of SIRIUS-N facility at low subcooling region, though instability observed in the lower heat flux and higher subcooling region from the stability limit of experiment. The TRACE code demonstrates the flashing-induced density wave oscillation characteristics: The oscillation period correlates well with the transit time of single-phase liquid in the chimney regardless of the system pressure, inlet subcooling, and heat flux. Unlike Type-I and II density wave oscillations, the inlet or exit throttling does not affect stability boundary and oscillation amplitude of flashing-induced density wave oscillations significantly. Increasing pressure decreases oscillation amplitude. The comprehensive validation confirms that the TRACE code can demonstrate thermal-hydraulic stability of natural circulation BWRs.

Original languageEnglish
Title of host publication2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference, ICONE 2012-POWER 2012
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages713-719
Number of pages7
Edition1
ISBN (Print)9780791844977
DOIs
Publication statusPublished - 2012 Jan 1
Externally publishedYes
Event2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference, ICONE 2012-POWER 2012 - Anaheim, CA, United States
Duration: 2012 Jul 302012 Aug 3

Publication series

NameInternational Conference on Nuclear Engineering, Proceedings, ICONE
Number1
Volume3

Conference

Conference2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference, ICONE 2012-POWER 2012
CountryUnited States
CityAnaheim, CA
Period12/7/3012/8/3

ASJC Scopus subject areas

  • Nuclear Energy and Engineering

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    Furuya, M., Nishi, Y., & Ueda, N. (2012). Validation of trace code for flashing-induced density wave oscillations in SIRIUS-N facility, which simulates ESBWR. In 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference, ICONE 2012-POWER 2012 (1 ed., pp. 713-719). (International Conference on Nuclear Engineering, Proceedings, ICONE; Vol. 3, No. 1). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/ICONE20-POWER2012-55132