Workshop on Nuclear Thermal Hydraulics Simulation & Safety Analysis (5/9)

1. Recent developments and V&V for SPACE: Korea began developing system thermal hydraulics code for use in nuclear power plant safety analysis in 2006 and obtained approval for use in nuclear power plant design in 2017. In my presentation, I introduce the two-phase three-field equation model selected in the SPACE code, introduce the differences and advantages and disadvantages of the governing equations used in other codes, and introduce the verification and validation process of the SPACE code to demonstrate that the SPACE code is suitable for use in nuclear power plant design.  I also introduce new developments to expand the scope of use of the SPACE code.

2. MARS-KS development and application activities: In addition to the SPACE code used by industries in nuclear power plant design, KAERI also developed the MARS-KS code, a system thermal hydraulics code used by regulatory agencies for audit calculations. In my presentation, I will focus on the performance and application cases of MARS-KS.