Study of Heat Transfer Performance for Sodium-Molten Salt Heat Exchanger in Sodium-Cooled Fast Reactor Coupled to Thermal Energy Storage System

For sodium-cooled fast reactor coupled to thermal energy storage (TES) system with sodium-molten salt heat exchanger (HX), Computational Fluid Dynamics (CFD) thermal analyses by STAR-CCM+ with partial HX model are performed as well as simple evaluation of heat transfer performance using heat transfer coefficient formula in this paper.The performance evaluation for a HX with sodium and molten salt confirmed heat transfer improvement measures effects.