Optimization of Rectangular Microchannel Depth Under Forced Convection Heat Transfer Condition


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Abstract


A numerical optimization tool is used to optimize forced convection micro-channel for minimum channel depth, channel width for high heat flux and low pressure drop. Electronic chip size of 30mm × 25mm is analyzed under forced convection heat transfer by considering rectangular channel geometry parameters with no phase transition. Channel physical parameters considered for optimization consist of channel width 300µm to 750µm, channel depth 200µm to 500µm under constant channel spacing of 500µm. The current work contains chip length of 30mm with deionized water as a working medium and 30 microchannels considered for analysis. Fully developed laminar flow is considered with constant wall temperature boundary conditions. A computer based “C” language numerical code is developed to analyze channel geometry parameters. The effects of rectangular channel dimensions on pressure drop and heat transfer rate are presented in this paper. Pressure drop observed minimum for channel width of 550µm - 750µm with channel depth of 300µm - 450µm. For constant wall temperature condition case, channel depth between 300µm - 450µm definitely seems better choice for channel width of 500µm -700µm with constant spacing of 500µm. From analysis it is reflected that, we can identify a region of possible channel configuration that can help in designing microchannel for high heat flux rate and low pressure drop which satisfy chip cooling requirement.


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Keywords


Microchannel; Heat Transfer Coefficient; Pressure Drop; Single Phase

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References


R.R.Bhide, S.G.Singh, Arunkumar Sridharan and S.P.Duttagupta ,Indian Institute of Technology Mumbai, India, Pressure drop heat transfer characteristics of boiling water in sub-hundred micron channel, Experimental Thermal and fluid science, Vol.- 33, pp. 963-975,2009.

Tatsuya Okabe, Markus Olhofer, Yaochu Jin, Bernhard Sendhoff, Commercial solver with evolutionary computation (EC) , International Journal of Heat and Mass Transfer, Vol.- 48, pp- 1010–1011, 2006.

Kwasi Foli, Tatsuya Okabe, Markus Olhofer, Yaochu Jin, Bernhard Sendhoff, Optimization of micro heat exchanger: CFD, analytical approach and multi-objective evolutionary algorithms, International Journal of Heat and Mass Transfer , Vol.- 49, pp-1090-1099, 2006.

Afzal Husain, Kwang-Yong Kim, Numerical analysis of 3-D fluid flow and heat transfer in rectangular Channel, International Journal of Heat and Mass Transfer, Vol.-49,pp.- 1077-1078, 2002.

Yu-Tang Chen, Shung-wen Kang, Wen-Chian Tuh , Experimental investigation of fluid flow and heat transfer in microcchannels, Tamkang Journal of science and Engineering, Vol.-7 No.-1 , pp.11-16, 2004.

S.H. Chong, K.T. Ooi , T.N. Wong, Optimization of single and double layer counter flow microchannel heat sinks, Journal of Applied Thermal Engineering, Vol.- 22, pp- 1569-1585, 2002.

Peterson. R. B., Numerical modeling of conduction effects in microscale counter flow heat exchangers, Microscale Thermophys. Engineering Vol-, 3, pp- 17-21, 1999.

Baodong Shao, Chlhan, R. ket, Optimization of microchannels of various aspect ratios, Journal of Electronic Packaging, ASME 2000.

R.W. Knight, D.J. Hall, J.S. Goodling, R.C. Jaeger, Heat sink optimization with application to microchannels, IEEE Transactions on Components Hybrids and Manufacturing Technology Vol-15, pp. 832–842, 1992.

G. A. Quadir and Jin, 2003, Optimization of microchannel heat sink by using finite element analysis method, RESEARCH ARTICLE, Springer-Verlag 2007.

Sung Jin Kim and Seok Pil Jang, Fluid flow and thermal characteristics of a microchannel heat sink subject to an impinging air jet” Vol.- 127,pp-770-775, 2005.

Lee.P.S., Garimella, S.V., Dong. L., Investigation of heat transfer in rectangular microchannels, International Journal of Heat and Mass Transfer, Vol-48, pp- 1688-1704, 2005.

S.G.Kandilkar et al., Optimization of microchannel geometry for direct chip cooling using single phase heat transfer, Book on Microchannels and Minichannels,, Second Edition,-2004.

Han-Chieh Chiu, Jer-Huan Jang, Hung-Wei Yeh, Taiwan, “ The heat transfer characteristics of liquid cooling heat sink containing microchannels” International Communication in Heat and Mass Transfer 54 (2011) 34-42.

P.Gunnasegaran , H.A. Mohammed, N.H. Shuaib, R. Saidur , University of Malaysia “The effect of geometrical parameters on heat transfer characteristics of microchannels heat sink with different shapes”, International Communication in Heat and Mass Transfer 37 (2010) 1078-1086.


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