[2G01-07] Thermal Hydraulics Experiment/Analysis 1

[2G05] Effect of hydrogen inflow on natural circulation flow of passive core cooling system

*Yasunori YAMAMOTO¹, Masayoshi MORI¹, Tetsuya TAKADA¹, Kosuke ONO¹ (1. Hokkaido Univ.)

Keywords:Natural circulation flow, Isolation condenser, hydrogen effects

Passive core cooling systems are important safety facility for station blackout of nuclear power plants. In this study, experiments were conducted with natural circulation loop simulating isolation condenser, where helium was injected to evaluate hydrogen effects and startup pressure, natural circulation flow rates, and pressure drops were measured.