Application of subchannel analysis to the evaluation of cladding temperatures during accidents

Koji Nishida

Presentation information

Oral presentation

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

[2G09-13] Numerical Analysis

Thu. Sep 7, 2023 2:45 PM - 4:05 PM Room G (ES Bildg. 2F ES021)

Chair:Kenichi Katono(HGNE)

2:45 PM - 3:00 PM

[2G09] Application of subchannel analysis to the evaluation of cladding temperatures during accidents

(1) Implementation of the Zircaloy-Water Reaction Correlation

*Koji Nishida¹, Naoki Sano¹, Seitaro Sakurai¹ (1. INSS)

Keywords:Accident, Cladding temperature, Oxidative exothermic reaction, Subchannel Analysis

The Zircaloy-water reaction model was implemented in the subchannel analysis code COBRA-EN. The calculation results of cladding temperatures for the QUENCH09 test gave the prospect of simulating the measured temperature increase due to the oxidative exothermic reaction.