TASS/SMR code improvement for small break LOCA applicability at an integral type reactor, SMART

• DOI: 10.1016/j.nucengdes.2015.09.017
• Publication Date: 2015-11-13T00:30:15Z
• Authors: Young-Jong Chung; Soo-Hyung Kim; Sung-Won Lim; Kyoo-Hwan Bae
• Keywords: Thermal hydraulics

Abstract Small reactors are a suitable option for nuclear system deployment in developing countries or non-electrical applications for various facilities. SMART is one of the small integral type reactors to apply flexibly local power demands or sea water desalination. A thermal hydraulic analysis code, TASS/SMR, having SMART specific models, was developed to simulate thermal hydraulic phenomena of the SMART plant. The improved TASS/SMR code predicts well the system behaviors under two-phase conditions compared with the OSU-MASLWR experimental results. A small break LOCA simulation of the SMART plant is improved a void distribution, a break flow, and a collapsed water level in the core.