3-D numerical analysis for fluid flow and heat transfer in a micro chip by using an electrohydrodynamic micro-pump

Chia Wen Lin, Jiin Yuh Jang

研究成果: Conference contribution

摘要

A computational investigation of the heat transfer for a high performance integrated chip by using an electrohydrodynamic (EHD) pump was studied. This paper presents a fully computational system bundle with electro field, fluid flow and heat transfer for a cooling device. The micro pump provides the required pumping power by using the dipole moment generated from polarizing molecules and induces the flow to cool down the heat source. The computational domain of the micro channel for length and depth are kept in 1500μm and 500μm with parallel electrodes pitch (20μm, 40μm, 80μm). The effects of different applied voltage VE ranging from 100V to 500V, using oil as the working fluid and the heat flux of the heat source fixed at 2.5W/cm 2 is investigated in detail. It is found that the EHD micro pump is more effective for lower channel pitch and higher applied voltage. For V E = 500V and electrodes pitch = 20μm, this study identifies a maximum performance of 49.36kPa in the pressure head and 9.55W/cm2 in the heat transfer. In addition, the performance of flow rate, liquid velocity and averaging Nusselt number for the specific condition are 0.94 L/min-mm 2, 0.12 m/s, and 106.10. However, it also identifies the performance of the heat transfer for electrodes pitch = 40μm is about 146.0% of that for pitch = 80μm. But for pitch = 20μm, it is only 10.5% higher than that for pitch = 40μm.

原文English
主出版物標題Proceedings of the 3rd International Conference on Microchannels and Minichannels, 2005
發行者American Society of Mechanical Engineers
頁面215-221
頁數7
ISBN(列印)0791841855, 9780791841853
DOIs
出版狀態Published - 2005
事件3rd International Conference on Microchannels and Minichannels, ICMM2005 - Toronto, ON, Canada
持續時間: 2005 六月 132005 六月 15

出版系列

名字Proceedings of the 3rd International Conference on Microchannels and Minichannels, 2005
PART B

Other

Other3rd International Conference on Microchannels and Minichannels, ICMM2005
國家/地區Canada
城市Toronto, ON
期間05-06-1305-06-15

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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