[3C05-09] Severe Accident Analytical Method

[3C09] Development status of hydrogen behavior simulation for NPP containment

hydrogen combustion simulation

＊Atsuhiko Terada¹, Yu Kamiji¹, Hino Ryutaro¹, Masaaki Matsumoto², Hitoshi Sugiyama³, Satoshi Kadowaki⁴ (1.JAEA, 2.MRI, 3.Utsunomiya Univ., 4.Nagaoka Univ. of Tech.)

Keywords:Numerical prediction, severe accident, safety, hydrogen dispersion, hydrogen combusion

Japan Atomic Energy Agency has been coducting R&D, through experiment and simulation, on hydrogen safety technologies to clarify the hydrogen behavior in severe accident conditions of Nuclear Power Station(NPS). To improve the safety performance of NPS, especially on the hydrogen safety under severe accident conditions, a simulation code system has been developed to analyze hydrogen behaviors including diffusion, comustion, explosion and structual integrity evaluation.