Porosity Analysis on the Performance of Heatsink with Microchannels
This paper investigates the heat transfer performance and characteristics of liquid cooling heatsink containing microchannels. The porosity analysis is utilized to study the thermal resistance of the heatsink with microchannels. Both numerical simulation and experimental work have been carried out. Results show that the effective thermal resistance of the heatsink was affected by both channel aspect ration and the pressure gradient. It is found that channel aspect ratio of 8 present the lowest effective thermal resistance at low pressure gradients. However, the lowest effective thermal resistance appears for channel aspect ratio of 11 under high pressure gradients. As an overall inspection, the value of the effective thermal resistance ranges from 0.32 to 0.65℃/W with various porosity at low pressure gradients, while it ranges from 0.18 to 0.37℃ /W at high pressure gradients.
Jer-Huan Jang Han-Chieh Chiu Hung-Wei Yeh Ming-Shan Wu
Department of Mechanical Engineering, Ming Chi University of Technology, Taishan, Taipei County 2430 Department of Mechanical Engineering, Technology and Science Institute of Northern Taiwan, Peitou, T
国际会议
China Semiconductor Technology International Conference 2010(中国国际半导体技术大会 CSTIC)
上海
英文
851-856
2010-03-18（万方平台首次上网日期，不代表论文的发表时间）