Capillary-porous heat exchangers for cooling of melting units

Alexander A. Genbach, Nellya Jamankulova, Vukman V. Bakić, Н.О. Джаманкулова

2018

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DOI 10.2298/tsci18s5359g
Data confidence 85 high
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Abstract

The model of development of a vapor phase in porous structures of heat exchangers for cooling of melting units on the basis of cinema observations which ex-plains the mechanism of nucleation, development, and death of steam bubbles is created. In case of crisis of heat exchange, there are the limiting conditions of a surface of a porous coating and metal substrate. The process of destroying can come from melting, or from heat stresses of compression and stretching. The reliability of a cooling system of melting units is defined by the combined action of capillary and mass forces.