We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Measurement of Void Fraction Distribution in a Sphere-Packed Bed Using X-Ray Imaging.
- Authors
YAMAMOTO Seishiro; ODAIRA Naoya; ITO Daisuke; ITO Kei; SAITO Yasushi; IMAIZUMI Yuya; MATSUBA Kenichi; KAMIYAMA Kenji
- Abstract
In the safety study on a sodium-cooled fast reactor, it is assumed that the high-temperature fuel debris are formed because of a core disruptive accident. During the cooling of the fuel debris, gas-liquid two-phase flow can be generated in the debris due to the coolant boiling. To improve the prediction accuracy of the flow characteristics, detailed measurement of the gas-liquid two-phase flow in the debris bed is required. In this study, gas-liquid two-phase flow in a quasi-two-dimensional sphere-packed bed which simulates the debris bed, is visualized by using X-ray imaging. The experimental results show that the local void fraction increases near the splitting section in the packed bed and decreases near the coalescence section.
- Subjects
POROSITY; X-ray imaging; FAST reactors; TWO-phase flow; FRACTIONS; DEBRIS avalanches; COOLANTS
- Publication
Japanese Journal of Multiphase Flow, 2023, Vol 37, Issue 1, p79
- ISSN
0914-2843
- Publication type
Article