Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 08, 2024 - September 11, 2024
Electronic devices are becoming smaller and more powerful, and the amount of heat generated is increasing. Boiling cooling is an effective cooling method to solve this problem. In order to enhance the heat transfer performance of boiling cooling, research has been conducted to increase the generation of bubbles by forming minute scratches or depressions on the heat transfer surface. One method of forming depressions on heat-transfer surfaces is a metal 3D printer, which is a layered modeling technology. In metal 3D printers using laser sintering, fine particles are sintered and laminated, and depressions are formed on the laminated surfaces, which may serve as bubble nuclei. In this report, we observed the aspect of boiling on the laminated surfaces by metal 3D printers and the condition of the laminated surfaces. As a result, it was found that the depressions between laser sintering marks may function as bubble nuclei.
