2018 Fall Meeting

Presentation information

Oral presentation

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[1H01-08] Melt Behavior 1

Wed. Sep 5, 2018 10:00 AM - 12:00 PM Room H (B32 -B Building)

Chair:Masahiro Furuya(CRIEPI)

11:00 AM - 11:15 AM

[1H05] Advanced Multi-Scale Modeling and Experimental Tests on Fuel Degradation in Severe Accident Conditions (1)

(No.5) Model of reaction between control rod and channel box

*Hai Vu Pham1, Suguru Matsuura2, Shotaro Nakajima2, Makoto Nanko2, Yuji Nagae1, Masaki Kurata1 (1. JAEA, 2. Nagaoka Univ. Tech.)

Keywords:lost-of-coolant accident, zircaloy, control blade, fuel assembly degradation

In this study, soaking experiments of pre-oxidized zry plates in molten mixture of stainless steel and 5 mol% boron carbide were conducted at 1200-1250°C. Thickness of oxide layer, ZrO2 was measured before and after the soaking test to investigate the ZrO2 thickness recession in the molten mixture. Results of the study indicated that the thickness recession of ZrO2 was mainly caused by the diffusion of oxygen from oxide layer to metallic-Zr region.