EVALUATION OF NANOFLUIDS PERFORMANCE FOR SIMULATED MICROPROCESSOR

Main Article Content

Hafiz Muhammad ALI Aysha Maryam SIDDIQUI Waqas ARSHAD Muzaffar ALI Muhammad Ali NASR

Abstract

In this investigation, deionized water was used as base fluid. Two different types of nanoparticles, namely Aluminium oxide and Copper were used with 0.251% and 0.11% volumetric concentrations in the base fluid respectively. Nanofluids cooling rate for flat heat sink used to cool a microprocessor was observed and compared with the cooling rate of pure water. An equivalent microprocessor heat generator i.e. a heated copper cylinder was used for controlled experimentation. Two surface heaters, each of 130 W power, were responsible for heat generation. The experiment was performed at the flow rates of 0.45 LPM, 0.55 LPM, 0.65 LPM, 0.75 LPM and 0.85 LPM. The main focus of this research was to minimize the base temperature and to increase the overall heat transfer coefficient. The lowest base temperature achieved was 79.45 oC by Aluminium oxide nanofluid at Reynolds number of 751. Although, Al2O3/H2O nanofluid showed superior performance in overall heat transfer coefficient enhancement and thermal resistance reduction as compared to other tested fluids. However, with the increase of Reynolds number, Cu/H2O nanofluid showed better trends of thermal enhancement than Al2O3/H2O nanofluid, particularly at high Reynolds number ranges.

Article Details

How to Cite
ALI, Hafiz Muhammad et al. EVALUATION OF NANOFLUIDS PERFORMANCE FOR SIMULATED MICROPROCESSOR. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/2114>. Date accessed: 19 aug. 2017. doi: https://doi.org/10.2298/TSCI150131159S.
Section
Articles
Received 2017-03-02
Accepted 2017-03-13
Published 2017-03-13

References

[1] Tuckerman, D.B., Pease, R.F.W., High-performance heat sinking for VLSI, IEEE Electron Device Letters EDL 2 (5) (1981) 126–129.
[2] Schubert, K., et al., Microstructure devices for applications in thermal and chemical process engineering, Microscale Thermophysical Engineering 5 (2001) 17–39.
[3] Kandlikar, S.G., A roadmap for implementing minichannels in refrigeration and air-conditioning systems current status and future directions, Heat Transfer Engineering 28–12 (2007) 973–985.
[4] Sobhan, C.B., Peterson, G.P., Microscale and Nanoscale heat transfer fundamentals and engineering applications, CRC Press, Taylor & Francis Group, Boca Raton, Florida, 2008.
[5] Xie, X.L., et al., Numerical study of turbulent heat transfer and pressure drop characteristics in a water cooled minichannel heat sink, J. Electron. Packag. 129 (2007) 247-255.
[6] Steinke, M.E., Kandlikar, S.G., Review of single phase heat transfer enhancement techniques for application in microchannels, minichannels and microdevices, Heat and Technology 22–2 (2004) 3.
[7] Pak, B.C., Cho, Y.I., Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles, Exp. Heat Transfer 11 (2) (1998) 151–170.
[8] Ho, C.J., et al., An experimental investigation of forced convective cooling performance of a microchannel heat sink with Al2O3/water nanofluid, Appl. Therm. Eng. 30 (2–3) (2010) 96–103.
[9] Lee S., et al., Measuring thermal conductivity of fluids containing oxide nanoparticles, J. Heat Transfer 121 (2) (1999) 280–290.
[10] Lee, J., Mudawar, I., Assessment of the effectiveness of nanofluids for single phase and two phase heat transfer in microchannels, Int. J. Heat Mass Transfer 50 (3–4) (2007) 452–463.
[11] Sohel, M.R., et al., An experimental investigation of heat transfer enhancement of a minichannel heat sink using Al2O3–H2O nanofluid, International Journal of Heat and Mass Transfer 74 (2014) 164– 172.
[12] Ho. C. J., et al., An experimental investigation of forced convective cooling performance of a microchannel heat sink with Al2O3/water nanofluid, Applied Thermal Engineering 30 (2010) 96–103.
[13] Anoop, K., et al., Experimental study of forced convective heat transfer of nanofluids in a microchannel, International Communications in Heat and Mass Transfer 39 (2012) 1325–1330.
[14] Rafati, M., et al., Applications of nanofluids in computer cooling systems (heat transfer performance of nanofluids), Appl. Therm. Eng. 45-46 (2012) 9-14.
[15] Dixit, T., Ghosh, I., Low Reynolds number thermo-hydraulic characterization of offset and diamond minichannel metal heat sinks, Exp. Therm. Fluid Science 51 (2013) 227–238.
[16] Peyghambarzadeh, S.M., et al., Performance of water based CuO and Al2O3 nanofluids in a Cu–Be alloy heat sink with rectangular microchannels, Ener. Conversion Management 86 (2014) 28–38.
[17] Corcione, M., Empirical correlating equations for predicting the effective thermal conductivity and dynamic viscosity of nanofluids, Energy Conversion and Management 52 (2011) 789–793.
[18] Jajja, S. A., et al., Water cooled minichannel heat sinks for microprocessor cooling: Effect of fin spacing, Applied Thermal Engineering 64 (2014) 76-82.
[19] Keblinski, P., et al., Mechanisms of heat flow in suspensions of nano-sized particles (nanofluids), International Journal of Heat and Mass Transfer 45 (2002) 855-863.
[20] Naphon, P., Nakharintr, L., Heat transfer of nanofluids in the mini-rectangular fin heat sinks, International Communications in Heat and Mass Transfer 40 (2013) 25–31.
[21] Shenoy S., et al., Minichannels with carbon nanotube structured surfaces for cooling applications, International Journal of Heat and Mass Transfer 54 (2011) 5379–5385.
[22] Hung, T-C., et al., Thermal performance analysis of porous-microchannel heat sinks with different configuration designs, International Journal of Heat and Mass Transfer 66 (2013) 235–243.
[23] Yang, K-S., et al., On the heat transfer characteristics of heat sinks: Influence of fin spacing at low Reynolds number region, International Journal of Heat and Mass Transfer 50 (2007) 2667–2674.
[24] Rea, U., et al., Laminar convective heat transfer and viscous pressure loss of alumina–water and zirconia–water nanofluids. Int J Heat Mass Transf 52 (2009) 2042–2048.
[25] Pak, B.C., Cho, Y.I., Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles, Exp. Heat Transfer 11 (1998) 151–170.
[26] Pak, B.C., Cho, Y.I., Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles, Exp. Heat Transfer 11 (1998) 151–170.
[27] Batchelor, G.K., Brownian diffusion of particles with hydrodynamic interaction. J Fluid Mech 74 (1976) (1) 1–29.
[28] Kline, S. J., McClintock, F. A., Describing Uncertainties in Single-Sample Experiments, Mech. Eng., (1953), 3-8.

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