Use of Nanofluids for Enhanced Natural Cooling of Discretely Heated Enclosures

Rached Ben-Mansour; Mohammed A. Habib

doi:10.4028/www.scientific.net/AMM.302.422

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 302Use of Nanofluids for Enhanced Natural Cooling of...

Use of Nanofluids for Enhanced Natural Cooling of Discretely Heated Enclosures

Abstract:

Natural convection heat transfer from discrete heat sources to nanofluids is of great importance because of its application in the cooling of electronic components. The presence of the nanoparticles in the fluids increases appreciably the effective thermal conductivity of the fluid and consequently enhances the heat transfer characteristics. The present study is aimed to investigate numerically the natural convection heat transfer from discrete heat sources to nanofluids. The behavior of nanofluids was investigated numerically inside a heated cavity to gain insight into convective recirculation and flow processes induced by a nanofluid. A computational model was developed to analyze heat transfer performance of nanofluids inside a cavity taking into account the solid particle dispersion. The model was validated through the comparison with available experimental data. The results showed good agreement. The influence of the solid volume fraction on the flow pattern and heat transfer inside the cavity was investigated. The results show that the intensity of the streamlines increases with the volume fraction. It is also indicated that higher velocities along the centerline of the enclosure are achieved as the volume of nanoparticles increases. The influence of the loading factor is more distinguished at the upper heaters and in particular at the highest heater. The heat transfer increases as the volume fraction of the nanoparticles increases from 2 to 10%.

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Periodical:

Applied Mechanics and Materials (Volume 302)

Pages:

422-428

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.302.422

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Cite this paper

Online since:

February 2013

Authors:

Rached Ben-Mansour, Mohammed A. Habib

Keywords:

Discretely Heated Cavities, Heat Transfer, Nanofluid, Natural Cooling

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References

[1] Jou, RY, Tzeng SC. Numerical research of nature convective heat transfer enhancement filled with nanofluids in rectangular enclosures, Int. Com. in Heat and Mass Transfer, 2006; 33: 727-736.

DOI: 10.1016/j.icheatmasstransfer.2006.02.016

Google Scholar

[2] Oztop, HF, Eiyad Abu-Nada, E. 2008, Numerical study of natural convection in partially heated rectangular enclosures filled with nanofluids, Int. J. of Heat and Fluid Flow 2008; 29: 1326-1336.

DOI: 10.1016/j.ijheatfluidflow.2008.04.009

Google Scholar

[3] Daungthongsuk, W, Wongwises, S. A critical review of convective heat transfer of nanofluids, Renewable and Sustainable Energy Reviews 2007; 11: 797-817.

DOI: 10.1016/j.rser.2005.06.005

Google Scholar

[4] Das, SK, Choi, SU, Yu, W, Pradeep, T. Nanofluids- Science and Technology, John Wiley, New York, (2008).

Google Scholar

[5] Abu-Nada, E., Masoud, Z., Hijazi, A. Natural convection heat transfer enhancement in horizontal concentric annuli using nanofluids, Int. Communications in Heat and Mass Transfer, 2008; 35(5): 657–665.

DOI: 10.1016/j.icheatmasstransfer.2007.11.004

Google Scholar

[6] Trisaksri, V. and Wongwises, S. Critical review of heat transfer characteristics of nanofluids, Renewable and Sustainable Energy Reviews 2007; 11: 512-523.

DOI: 10.1016/j.rser.2005.01.010

Google Scholar

[7] Ogut, EB. Natural convection of water-based nanofluids in an inclined enclosure with a heat Source, Int. J. of Thermal Sciences, 2009; 1-11.

Google Scholar

[8] Chadwick, ML, Webb, BW. Heaton, HS. Natural convection from too-dimensional discrete heat sources in a rectangular enclosure, Int. J. Heat Mass Transfer 1991; 34(7): 1679-1693.

DOI: 10.1016/0017-9310(91)90145-5

Google Scholar