Computer modeling of unidirectional heating with solar radiation of Zr-Cr alloy disk-shaped specimens

Abstract

The process of unidirectional heating of disk-shaped specimens of Zr-Cr alloy by solar radiation is analyzed to determine the conditions of controlled heating allowing a given temperature gradient to be reached. The calculation of temperature distribution in a material upon unidirectional radiation heating is made using a discrete model. The calculation of temperature gradient across the thickness of disk-shaped specimen of Zr-Cr alloy which is heated at one end with concentrated solar radiation in steady state regime as well as the determination of characteristic time corresponding to reaching of steady state regime for different values of the heat flow are carried out. The value of the heat flow is obtained in the model as a main parameter being necessary to control the unidirectional heating.