Abstract
The present paper explores the cooling processes of high-temperature cylindrical samples in ethanol-water binary mixtures with different concentrations. The cylindrical samples simulate fuel rods for nuclear power plants. The study of the occurrence of intensive boiling regime during cooling of high-temperature bodies and the possibility of predicting the surface temperature of the transition to this regime will allow substantiating the choice of a new type of tolerant fuel from the standpoint of thermophysics. The experiments were conducting with different subcoolings to the saturation temperature under atmospheric pressure. Ethanol-water mixtures (40% and 60%) were used as cooling liquids. The working sample was a nickel cylinder. It was shown that with the addition of water to ethanol, cooling processes becomes more intensive.
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