Nanofluid Heat Transfer Coefficient Enhancement Using Connectors

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The requirement for effective cooling of modern electrical and mechanical components has increased due to the desire for more compact and efficient designs. Thermal systems have used working fluids as a method for cooling systems for many years. However, technological improvements have dictated that working fluids must be more efficient for their applications. Researchers presented nanofluids as a possible solution for this issue, and they have gained a lot of attention due to their capability to enhance the heat transfer coefficient in miniaturized cooling or heating systems. The main purpose of this paper is to enhance the heat transfer coefficient in micro scales by encouraging the random motion of the particles in the nanofluid. This is accomplished by placing a nozzle between two micro-channels. The random motion of the particles is enhanced within the nozzle, increasing the heat transfer coefficient in the microchannel downstream as a result. In addition, the effects of characteristics of nanofluid are discussed briefly.

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145-150

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December 2023

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© 2023 Trans Tech Publications Ltd. All Rights Reserved

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[1] K. Apmann, R. Fulmer, B. Scherer, S. Good, J. Wohld and S. Vafaei, Nanofluid heat transfer: Enhancement of the HTC inside microchannels, Nanomaterials, 12 (2022) 615

DOI: 10.3390/nano12040615

Google Scholar

[2] Norouzipour, A.; Abdollahi, A.; Afrand, M. Experimental study of the optimum size of silica nanoparticles on the pool boiling HTC of silicon oxide/deionized water nanofluid. Powder Technol. 2019, 345, 728–738.

DOI: 10.1016/j.powtec.2019.01.034

Google Scholar

[3] Anoop, K.B.; Sundararajan, T.; Das, S.K. Effect of particle size on the convective heat transfer in nanofluid in the developing region. Int. J. Heat Mass Transf. 2009, 52, 2189–2195.

DOI: 10.1016/j.ijheatmasstransfer.2007.11.063

Google Scholar

[4] Elias, M.; Miqdad, M.; Mahbubul, I.; Saidur, R.; Kamalisarvestani, M.; Sohel, M.; Hepbasli, A.; Rahim, N.; Amalina, M. Effect of nanoparticle shape on the heat transfer and thermodynamic performance of a shell and tube heat exchanger. Int. Commun. Heat Mass Transf. 2013, 44, 93–99.

DOI: 10.1016/j.icheatmasstransfer.2013.03.014

Google Scholar

[5] Ding, Y.; Chen, H.; He, Y.; Lapkin, A.; Yeganeh, M.; Šiller, L.; Butenko, Y.V. Forced convective heat transfer of nanofluids. Adv. Powder Technol. 2007, 18, 813–824.

DOI: 10.1163/156855207782515021

Google Scholar

[6] Vafaei, S.; Yeager, J.A.; Daluga, P.; Scherer, B. Forced Convection Nanofluid Heat Transfer as a Function of Distance in Microchannels. Materials 2021, 14, x

DOI: 10.3390/ma14113021

Google Scholar

[7] Sundar, L.S. Experimental study on the thermophysical properties, heat transfer, thermal entropy generation and exergy efficiency of turbulent flow of ZrO2-water nanofluids. Alexandria Engineering Journal, 2023, 65, 867-885.

DOI: 10.1016/j.aej.2022.10.001

Google Scholar

[8] Pourpasha, H., Heroes, S.Z., Mohammadpourfard, M. (2023). The effect of TiO2 doped multi-walled carbon nanotubes synthesis on the thermophysical and heat transfer properties of transformer oil: A comprehensive experimental study. Case Studies in Thermal Engineering, 41, 102607.

DOI: 10.1016/j.csite.2022.102607

Google Scholar

[9] Ajeeb, W., R.S., R., Silva, T., Murshed, S.M.S. (2023). Experimental investigation of heat transfer performance of Al2O3 nanofluids in a compact plate heat exchanger. Applied Thermal Engineering, 218, 119321.

DOI: 10.1016/j.applthermaleng.2022.119321

Google Scholar

[10] Rea, U.; McKrell, T.; Hu, L.W.; Buongiorno, J. Laminar convective heat transfer and viscous pressure loss of alumina-water and zirconia-water nanofluids. Int. J. Heat Mass Transf. 2009, 52, 2042–2048.Sahin, B.; Gültekin, G.G.; Manay, E.; Karagoz, S. Experimental investigation of heat transfer and pressure drop characteristics of Al2O3–water nanofluid. Exp. Therm. Fluid Sci. 2013, 50, 21–28.

DOI: 10.1016/j.ijheatmasstransfer.2008.10.025

Google Scholar

[11] Sahin, B.; Gültekin, G.G.; Manay, E.; Karagoz, S. Experimental investigation of heat transfer and pressure drop characteristics of Al2O3–water nanofluid. Exp. Therm. Fluid Sci. 2013, 50, 21–28.

DOI: 10.1016/j.expthermflusci.2013.04.020

Google Scholar

[12] Patel. H.E.; Sundararajan, T.; Das, S.K. An experimental investigation into the thermal conductivity enhancement in oxide and metallic nanofluids. J. Nanoparticle Res. 2010, 12, 1015–1031

DOI: 10.1007/s11051-009-9658-2

Google Scholar

[13] Jung, J.Y.; Oh, H.S.; Kwak, H.Y. Forced convective heat transfer of nanofluids in microchannels. Int. J. Heat Mass Transf. 2009, 52, 466–472.

DOI: 10.1016/j.ijheatmasstransfer.2008.03.033

Google Scholar

[14] Beck, J.; Palmer, M.; Inman, K.; Wohld, J.; Cummings, M.; Fulmer, R.; Scherer, B.; Vafaei, S. Heat Transfer Enhancement in the Microscale: Optimization of Fluid Flow. Nanomaterials 2022, 12, 3628.

DOI: 10.3390/nano12203628

Google Scholar