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Measurements of Two-Phase Pressure Drop in a Simulated Debris Bed

[+] Author Affiliations
Milka Hebi Nava Rivera

Kyoto University, Sakyo-ku, Japan

Daisuke Ito, Yasushi Saito

Kyoto University, Kumatori, Japan

Mitsuhiro Aoyagi, Kenji Kamiyama, Tohru Suzuki

Japan Atomic Energy Agency, Oarai, Japan

Paper No. ICONE25-67927, pp. V009T15A063; 7 pages
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 9: Student Paper Competition
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5787-8
  • Copyright © 2017 by ASME


Two-phase flow through porous media should be well understood to develop a severe accident analysis code not only for light water reactor but also sodium cooled fast reactor (SFR). When a core disruptive accident occurs in SFR, the fuel inside the core may become melted and interacts with the coolant. As a result, gas-liquid two-phase flow will be formed in the debris bed, which may have porous nature depending on the cooling process. Thus, as first step, present work focuses on the characteristics of pressure drop in single- and two-phase flows in different porous media conditions (porous size, liquid and gas flow velocity). In addition, in order to construct an experimental database, the measured pressure drop under different conditions was compared with existing correlations.

Copyright © 2017 by ASME
Topics: Pressure drop



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