Solid-phase sintering process and forced convective heat transfer performance of porous-structured micro-channels
(South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China)
Abstract: A solid-phase sintering process for the low-cost fabrication of composite micro-channels was developed. Three kinds of composite micro-channels with metallic porous structures were designed. The sintering process was studied and optimized to obtain porous-structured micro-channels with high porosity. The flow resistance and heat transfer performance in the composite micro-channels were investigated. The composite micro-channels show acceptable flow resistance, significant enhancement of heat transfer and dramatic improvement of flow boiling stability, which indicates a promising prospect for the application in forced convective heat transfer.
Key words: solid-phase sintering; composite micro-channels; porous structure; flow resistance; convective heat transfer