1/64 SCALE MODEL TESTS OF A MARK I BOILING WATER REACTOR PRESSURE SUPPRESSION SYSTEM

摘要

Results of air blowdown experiments, conducted on a detailed 1/64 scale model of a Mark I BWR pressure suppression system, show no difference in observed phenomena between tests with the full 360° toroidal wetwell and tests with a 90°, 45° or 22-1/2° sector of the toroidal wetwell. Phenomena observed qualitatively on the 1/64 scale apparatus had the same character¬istics as those observed in later tests on the 1/5 scale apparatus.nBubble action and pool swell were largest in regions where the down-comers were closely spaced. Blocking one of the eight vent lines had insignificant effects on the results.