Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2022 - October 09, 2022
In the present study, a simple system of three spherical heat storage bodies made of silicon carbide or alumina in a straight line in a duct was analyzed numerically considering radiation and compared with experimental results. The results of the analysis showed that there was an effect of radiation from the heated air inlet on the temperature rise of the heat storage body in the experiment. The low emissivity of the duct's inner wall and then the reflection of the radiation had the effect of heating the heat storage body far from the inlet by radiation heat transfer. In addition, the effect of radiation was more substantial farther from the inlet for the silicon carbide heat storage body, which has a higher emissivity and a lower heat capacity than that of the alumina heat storage body.
