Research of porous coating influence on heat exchange crisis in circular cooling channels at one-sided loading

Abstract Test data on the Ultimate Heat Flux investigation at a heat loading typical for the ITER Divertor are presented. It is determined that using of technology of the Porous Coating deposiiion to the cooling channel surface leads to a significant increase of the Ultimate Heat Flux value. Before-crisis and pre-crisis temperature state calculation results for one-sided loaded rectangular mock-ups with tubular cooling channels are given. Two alternative conceptions (optimistic and pessimistic) were used in the calculations. Water flow rate influence on the mock-up temperature level was investigated.