Analysis of Boiling in Rectangular Micro Channel Heat Sink

Authors: Ahmed Jassim Shkarah, Mohd Yusoff Bin Sulaiman, Md Razali bin Hj Ayob

Abstract:

A 3D-conjugate numerical investigation was conducted to predict heat transfer characteristics in a rectangular cross-sectional micro-channel employing simultaneously developing Tow-phase flows. The sole purpose for analyzing two phase flow heat transfer in rectangular micro channel is to pin point what are the different factors affecting this phenomenon. Different methods and techniques have been undertaken to analyze the equations arising constituting the flow of heat from gas phase to liquid phase and vice versa.Different models of micro channels have been identified and analyzed. How the geometry of micro channels affects their activity i.e. of circular and non-circular geometry has also been reviewed. To the study the results average Nusselt no plotted against the Reynolds no has been taken into consideration to study average heat exchange in micro channels against applied heat flux. High heat fluxes up to 140 W/cm2 were applied to investigate micro-channel thermal characteristics.

Keywords: Tow Phase flow, Micro channel, VOF.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1093784

References:

[1] Mudawar, I. Assessment of high-heat-flux thermal management schemes. in Thermal and Thermomechanical Phenomena in Electronic Systems, 2000. ITHERM 2000. The Seventh Intersociety Conference on. 2000.
[2] Tuckerman, D.B. and R.F.W. Pease, High-performance heat sinking for VLSI. Electron Device Letters, IEEE, 1981. 2(5): p. 126-129.
[3] Hetsroni, G., et al., Two-phase flow patterns in parallel micro-channels. International Journal of Multiphase Flow, 2003. 29(3): p. 341-360.
[4] Lee, J. and I. Mudawar, Two-phase flow in high-heat-flux micro-channel heat sink for refrigeration cooling applications: Part II—heat transfer characteristics. International Journal of Heat and Mass Transfer, 2005. 48(5): p. 941-955.
[5] Hegde, P., et al., Thermal analysis of micro-channel heat exchangers with two-phase flow using FEM. International Journal of Numerical Methods for Heat & Fluid Flow, 2005. 15(1): p. 43-60.
[6] Morini, G.L., Viscous heating in liquid flows in micro-channels. International Journal of Heat and Mass Transfer, 2005. 48(17): p. 3637-3647.
[7] Okabe, T., et al. Comparative studies on micro heat exchanger optimisation. in Evolutionary Computation, 2003. CEC'03. The 2003 Congress on. 2003. IEEE.
[8] Roy, S.K. and B.L. Avanic, A very high heat flux microchannel heat exchanger for cooling of semiconductor laser diode arrays. Components, Packaging, and Manufacturing Technology, Part B: Advanced Packaging, IEEE Transactions on, 1996. 19(2): p. 444-451.
[9] Shkarah, A.J., et al., A 3D numerical study of heat transfer in a single-phase micro-channel heat sink using graphene, aluminum and silicon as substrates. International Communications in Heat and Mass Transfer, 2013. 48: p. 108-115.
[10] Shkarah, A.J., M.Y.B. Sulaiman, and M.R.b.H. Ayob, Two-Phase Flow in Micro-Channel Heat Sink Review Paper. International Review of Mechanical Engineering, 2013. 7(1).
[11] Wegeng, R.S., et al., Compact fuel processors for fuel cell powered automobiles based on microchannel technology. Fuel Cells Bulletin, 2001. 3(28): p. 8-13.
[12] Zhao, T. and Q. Bi, Co-current air–water two-phase flow patterns in vertical triangular microchannels. International Journal of Multiphase Flow, 2001. 27(5): p. 765-782.
[13] Vasiliev, L.L., Micro and miniature heat pipes – Electronic component coolers. Applied Thermal Engineering, 2008. 28(4): p. 266-273.
[14] Salimpour, M.R., M. Sharifhasan, and E. Shirani, Constructal optimization of the geometry of an array of micro-channels. International Communications in Heat and Mass Transfer, 2011. 38(1): p. 93-99.
[15] Bahrami, M., M. Michael Yovanovich, and J. Richard Culham, A novel solution for pressure drop in singly connected microchannels of arbitrary cross-section. International Journal of Heat and Mass Transfer, 2007. 50(13–14): p. 2492-2502.
[16] Hirt, C.W. and B.D. Nichols, Volume of fluid (VOF) method for the dynamics of free boundaries. Journal of computational physics, 1981. 39(1): p. 201-225.
[17] Brackbill, J., D.B. Kothe, and C. Zemach, A continuum method for modeling surface tension. Journal of computational physics, 1992. 100(2): p. 335-354.
[18] Lee, P.-S., S.V. Garimella, and D. Liu, Investigation of heat transfer in rectangular microchannels. International Journal of Heat and Mass Transfer, 2005. 48(9): p. 1688-1704.
[19] Webb, R.L., et al., Remote heat sink concept for high power heat rejection. Components and Packaging Technologies, IEEE Transactions on, 2002. 25(4): p. 608-614.