NASA NTRS · 19720026295
Liquid metal boiling inception
Abstract
An experimental study of the inception of boiling in potassium in forced convection is reported. The boiler consisted of a 0.19-inch inside diameter, niobium-1% zirconium boiler tube approximately six feet long. Heating was accomplished by direct electrical tube wall conduction. Experiments were performed with both all-liquid fill and two-phase fill startup sequences and with a range of flow rates, saturation temperatures, inert gas levels, and fill liquid temperatures. Superheat of the liquid above the equilibrium saturation temperature was observed in all the experiments. Incipient boiling liquid superheat ranged from a few degrees to several hundred. Comparisons of these data with other data and with several analytical treatments are presented.
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Sabin, C. M., Poppendiek, H. F., Mouritzen, G., Meckel, P. T., Cloakey, J. E.. 1972-08-01. Liquid metal boiling inception. https://ntrs.nasa.gov/citations/19720026295
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