Design Window for Liquid Metal-Cooled Limiters

ABSTRACT

A design window for a liquid metal cooled limiter is being sought to establish the viability of the use of liquid metals as coolants for the limiter. The problem is approached by first establishing the constraints, then defining the geometrical configuration and design parameters, and finally, by analyzing a limiter without coating. The maximum allowable heat flux is found to be ∼ 4 MW/m². It can be increased to 5 MW/m² if tapered or insulated feed pipes are used. The presence of coatings required to withstand particle erosion will further reduce the allowable heat flux.