| Summary: | 碩士 === 北臺灣科學技術學院 === 機電整合研究所 === 99 === The present study analyzes the effect of length on the heat transfer of liquid cooling heat sink containing microchannels. Both computer simulation and experiments were conducted to investigate the heat transfer of heat sinks with various channel lengths and channel widths. CNC machine center and wire-cut machine were used to prepare aluminum (6161-T6) prototypes for experimental tests. During experiment, pressure drop, volume flow rate, and temperatures were measured. The studied channel length ranges between 10 and 18mm, and the channel width ranges between 0.26 and 0.6mm. The experimental results show that the heat transfer performance of heat sink with channel length 10mm is better than others. In addition, the channels of 0.26 in width performs lower thermal resistance.
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