SURVEY OF CRITICAL HEAT-FLUX DATA FOR POOL BOILING OF LIQUID-METALS AND NEW CORRELATIONS

Experimental heat transfer data for critical heat flux (CHF) during po ol boiling of liquid metals are surveyed. CHF is found to be related t o the stability of boiling prior to CHF. A new correlation is given fo r stable saturated boiling CHF and is shown to give better agreement w ith data than earlier correlations. This correlation is also applicabl e to nonmetals. A new correlation is also given for the lower limit of CHF during unstable boiling. Included in the correlation are data on sodium, potassium, cesium, rubidium, and mercury, on plates and cylind ers. The limited data available for subcooled CHF are grossly overpred icted by correlations that have been successful for ordinary fluids.