Abstract
A molten salt FLiBe is proposed to be one of candidate materials for coolant and breeder in a fusion blanket. However, it is high Pr-number fluid with large viscosity. Therefore, applying it as the coolant for high surface heat flux conditions, we have to develop a new methods to enhance heat transfer of molten FLiBe flowing in a channel by an adequate active promoters. Through the present study of numerical analysis, it is clarified that an averaged Nusselt number of molten FLiBe laminar flow in a channel filled with the porous medium is higher than that in a normal smooth pipe. The larger enhancemnet can be increased with increasing flow velocity, however, the averaged Nu number shows a maximum value because the heat transfer in the radial direction perpendicular to the flow axis becomes relatively reduced with the increase of the flow velocity.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call