Hydraulic analysis of the water-cooled blanket based on the sub-critical water condition

亜臨界条件での水冷却ブランケットの伝熱流動解析

Liu, C.; 飛田 健次

Liu, C.; Tobita, Kenji

This study focused on the thermal transfer and the pressure drop under the subcritical water condition. The temperature field distribution is discussed with the solid zones (breeder, multiplier and F82H material) and the coolants. The peak temperature of beryllium zones reaches about 600 C and most of the breeder zones (LiSiO, LiSiO and BeTi) would be nearly 900 C, which meets the thermal design requirements of the blanket material. For the pressure drop, the piping circuit assumes most of the pressure drop (72.68) comparing to the other two, the FW (first wall) channel (23.96) and the header (3.36), and the total value of blanket cooling system would be under 0.5MPa which could be satisfied with the design guideline. In addition, by comparing on pressure drop between the simulation and the empirical results, it is confirmed the empirical rules of pressure drop could be applied to estimate the preliminary values on relevant cooling structure.