Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 09, 2021 - October 10, 2021
In this study, the heat transfer coefficients were measured to investigate the effects of surface shape for the heat transfer characteristics of impingement air cooling system. The surface shape applied to obtain the variation in the heat transfer coefficient was the pyramid-like-surface and smooth surface. As a results, the heat transfer coefficients of both the pyramid-like surface and smooth surface were increased with increasing the pressure ratio of air. Moreover, it was found that the application of pyramid-like-surface improved the heat transfer performance of impingement air cooling system by the change of pyramid angle.
