An Investigation of the Heat Transfer and Stability of Liquid-Metal Coolant Boiling in a Natural Circulation Circuit

摘要

Results are presented of an experimental investigation of Na―K eutectic alloy boiling in the model of a fuel assembly of a fast reactor during the emergency cooling-down of the reactor at low circulation velocities. A map of boiling patterns is obtained. Data on the boiling of the Na―K eutectic alloy are compared with those for other liquid-metal coolants. A generalized correlation of the critical flux for liquid metals is presented.