Liquid Li/V alloy blanket

Page 1 : Problems in Liquid Li/V-alloy blanket
Page 2 : Three-surface and multi-layer coated channel

Page 3 : Numerical analysis and experiments

Page 4 : Published Papers

Numerical analysis

In order to validate this concept, we conducted MHD simulation using a k-&epsilon turbulent model for the three-surface-coated channel flow with a uniform magnetic field in the transverse direction, and discussed the effect of the metal layer thickness on the flow field.

Example of results

Experiment

We are using an annular open channel consists of a bicylindrical vessel made of stainless steel and a pair of copper electrodes at inner and outer plane inside the vessel. The bottom stainless steel layer is attached to the electrodes. The working fluid is Bi-Sn eutectic alloy of 150°C, whose melting point is 138°C. In order to reduce oxidation of the metal, Ar gas is injected into the channel covered with clear rubber seat. Magnetic field generated by superconducting magnets is applied to the channel in the axial direction. Driving force along the channel is generated by the axial magnetic field and radial current passing through the fluid from the inside electrode wall to the outside one. The experimental parameters are the magnetic field (≤5T), the flow velocity (≤0.6m/s) and the conductivity of the bottom wall. The bottom stainless steel layer can be changed for this experiment. When the stainless steel layers are not installed on the bottom, the channel becomes insulated channel.

Experimental set-up