Experimental Investigation of Heat Transfer in Coated Microchannels for MEMS Applications

Abstract:

The microchannel cooling technique appears to be a viable solution to high heat rejection requirements of today’s high-power electronic devices. The thermal design of the small electronics cooling devices is a key issue that needs to be optimized in order to keep the system temperatures at certain levels. Thus the need of microchannel became vital. This present work investigates the experimental work conducted in a coated rectangular microchannel heat sink of hydraulic diameter of 0.763 mm for a heat input of 250 to 1020 Watt with water to study the heat transfer characteristics with two types of header arrangement such as rectangular header and trapezoidal header. The header plays a significant role in distributing the water in to the channels. The uniform distribution of water leads to uniform heat transfer in microchannels. From the experimental results carried with two types of header arrangements, it was found that coated rectangular microchannel with trapezoidal header gives better heat transfer characteristics for the range of heat inputs.

• Periodical: Applied Mechanics and Materials (Volumes 813-814)
• Pages: 782-786
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.813-814.782
• Online since: November 2015
• Authors: C. Anbumeenakshi, M.R. Thansekhar*, M. Satheeshkumar, R. Vishnu Gayathri
• Keywords: Coating, Heat Transfer, Microchannel, Rectangular Header, Trapezoidal Header

References

[1] D.B. Tuckerman and R.F.W. Pease, High performance heat sinking for VLSI, IEEE Electron Device Letter EDL-2 (1981) 126-129.

DOI: 10.1109/edl.1981.25367

[2] Sathish G. Kandlikar, History, Advances, and challenges in liquid flow and Flow Boiling Heat transfer in Microchannels: A critical review, Journal of Heat transfer Vol. 134 (2012) 1-14.

DOI: 10.1115/1.4005126

[3] Weilin Qu, Issam Mudawar, Experimental and numerical study of pressure drop and heat transfer in a single phase microchannel heat sink, Int. Journal of heat and mass transfer (2002) 2549-2565.

DOI: 10.1016/s0017-9310(01)00337-4

[4] A. A. Alfaryjat, H. A. Mohammed. Nor Mariah Adam, M.K.A. Ariffin, M.I. Najafabadi, Influence of geometrical parameters of hexagonal, circular, and rhombus microchannel heat sinks on the thermohydraulic characteristics, Int. communications in Heat and Mass transfer 52 (2014).

DOI: 10.1016/j.icheatmasstransfer.2014.01.015

[5] Vikash Khanikar, Issam Mudawar, Timothy Fisher, Effects of carbon nanotube coating on flow boiling in a mico-channel, International Journal of Heat and Mass Transfer 52 (2009) 3805 – 3817.

DOI: 10.1016/j.ijheatmasstransfer.2009.02.007

[6] M. Yakut Ali, Fanghao Yang, Ruixian fang, Chen Li, and Jamil Khan, Thermohydraulic characteristics of a Single-Phase Microchannel heat sink coated with copper nanowires , Frontiers in Heat and Mass Transfer 2 (2011) 1-11.

DOI: 10.5098/hmt.v2.3.3003

[7] G. Rosengarten , J. Cooper – White, G. Metcalfe, Experimental and analytical study of the effect of contact angle on liquid convective heat transfer inmicrochannels, Int. Journal of Heat and mass Transfer 49 (2006) 4161-4170.

DOI: 10.1016/j.ijheatmasstransfer.2006.02.057

[8] A.K.M.M. Morshed, Fanghao Yang, M. Yakut Ali, Jamil A. Khan, Chen Li, Enhanced flow boiling in a microchannel with integration of nanowires, Applied thermal Engineering (2011) 1-8.

DOI: 10.1016/j.applthermaleng.2011.08.031

[9] C. Anbumeenakshi, T.R. Vijaybabu, M.R. Thansekhar, Experimental Investigation Of Flow Maldistribution In Microchannels, Int. Journal of Innovative Research in Science, Engineering and Technology Volume 3 Special Issue 3 (2014) 1410-1413.