Critical Heat Flux Experiments with a Local Hot Patch in an Internally Heated Annulus (LWBR Development Program)

摘要

Critical heat flux experiments were conducted for upflow of water in a vertical 84 inch annular flow channel, 0.303 inch heated I.D. and 0.500 inch unheated O.D. Test data were obtained at pressures from 1200 to 2000 psia, mass velocities from 0.25 x 10 exp 6 to 2.8 x 10 exp 6 lb/hr-ft exp 2 and inlet temperatures ranging from 200 to 600 exp 0 F. Three different test sections were employed with (1) axially uniform heat flux over the 84 inch length to serve as a no-hot-patch data base, (2) axially uniform heat flux over 82 inches with a 1.5 heat flux ratio hot patch over the last two inches, and (3) axially uniform heat flux over 82 inches with a 2.25 heat flux ratio hot patch over the last two inches. (ERA citation 04:036418)