Effect of material properties on heat transfer during cooling of high-temperature cylindrical bodies in liquids

Abstract

Abstract The aim of the present paper is an experimental study of the cooling processes of high-temperature cylindrical samples with different thermal conductivity of the metal in liquids. Studying the influence of material properties on heat transfer during cooling and the possibility of accurately prediction of the transition surface temperature to the intensive cooling regime will allow substantiating the choice of a new type of tolerant fuel from the standpoint of thermophysics. The experiments were conducted for cooling in water and ethanol with different subcoolings under atmospheric pressure. For metals with low thermal effusivity, an increase in the transition temperature with a significant increase of the removed heat fluxes from the surface was experimentally discovered.