An Observation of Water Boiling Phenomenon at Low Heat Flux Condition from Laser Sintered Laminated Structure Surface Using Metal 3D Printers

Abstract

Recent micronized machines require high advanced cooling systems because of its high heat generation density. Main conventional cooling systems have been air cooling and water cooling, but heat transfer is restricted with these techniques. Therefore, this study is focused on boiling phenomena with a large heat transfer coefficient utilizing the phase change as a further heat transfer means. Metal 3D printers can be stacked accurately without processing regardless complicated shapes. In this study, boiling phenomena and heat transfer coefficient characteristics at the low heat flux condition in the laser sintering and laminated structure by metal 3D printers were observed.