[en] The LOFA and SBO severe accidents are simulated with the ASTCE code separately. The reaction mechanism between metals (Zr, Fe, B4C) and steam is described in LOFA. The mass and rate and the starting time of hydrogen production are compared. It shows that the hydrogen mainly come from the Zr oxidation, and the hydrogen from Fe oxidation is only 10% of all. The hydrogen production during the accidents of LOFA and SBO are compared also. The mass, the maximum rate and the starting time of hydrogen generation of the same reactor are quite different in different severe accident sequence. So it is necessary to make the analyses of the hydrogen source term during the severe accident and take some effective measures. (authors)
Source
Chinese Nuclear Society, Beijing (China); 460 p; ISBN 978-7-5022-5040-9; 
; Nov 2010; p. 95-99; '09: academic annual meeting of China Nuclear Society; Beijing (China); 18-20 Nov 2009; 4 figs., 2 tabs., 3 refs.
; Nov 2010; p. 95-99; '09: academic annual meeting of China Nuclear Society; Beijing (China); 18-20 Nov 2009; 4 figs., 2 tabs., 3 refs.