Reduction of MHD pressure drop by electrical insulating oxide layers in liquid breeder blanket of fusion reactors

• DOI: 10.1016/j.nme.2023.101382
• Publication Date: 2023-01-28T07:32:12Z
• Authors: Ryunosuke Nishio; Teruya Tanaka; Naoko Oono; Masatoshi Kondo
• Keywords: Liquid metal

The electrical conductivity of the α-Al2O3 layer formed on FeCrAl alloy APMT (Fe-21Cr-5Al-3Mo) in air atmosphere at 1273 K and 1373 was measured a temperature range between room 1073 K. Low clarified measurement range. ZrO2 Zr metal 873 also measured. Numerical simulation performed with three-dimensional thermo-fluid code to clarify reduction magnetohydrodynamic (MHD) pressure drop insulating layers liquid blankets magnetic confinement fusion reactors. MHD is significantly reduced when four inner surfaces duct are electrically insulated by oxide layers. insulation three effective reduce field parallel conductive wall flow duct. However, induced three-surface makes an angle