[2I10-17] Phase Change

[2I11] Study on Boiling Heat Transfer Characteristics in Debris Beds

2nd:Dryout Heat Flux for Bottom and Volume Heated Debris Beds

*Keishi Sakurada¹, Taira Kawakami¹, Hiroto Sakashita¹, Ayako Ono², Hiroyuki Yoshida² (1. Hokkaido University, 2. Japan Atomic Energy Agency)

Keywords:Severe accident, Bottom and volume heated Debris beds, Boiling heat transfer, Critical heat flux

This study measured the dryout heat fluxes on a bottom surface for bottom and volume heated debris beds, where small spherical metal particles were placed on a 75mm diameter heating surface and internally heated by induction heating. The data were obtained by varying the particle size and the volumetric heated rate, and compared with the available correlations.