首页> 外文期刊>Advanced Powder Technology: The internation Journal of the Society of Powder Technology, Japan >Experimental hydrothermal characteristics of minichannel heat sink using various types of hybrid nanofluids
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Experimental hydrothermal characteristics of minichannel heat sink using various types of hybrid nanofluids

机译:使用各种类型杂交纳米流体的迷你散热器的实验水热特性

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The hydrothermal characteristics of minichannel heat sink are analyzed experimentally by using deionized (DI) water based different nanoparticles mixture dispersed hybrid nanofluids. Al2O3, MgO, SiC, AlN, MWCNT and Cu nanoparticles are considered for this study. Different nanoparticles combinations (oxide-oxide, oxide-carbide, oxide-nitride, oxide-carbon nanotube and oxide-metal) in 50/50 vol ratio with base fluid (DI water) have been taken as coolants for volume concentration of 0.01%. Effects of volume flow rate (0.1-0.5LPM), fluid inlet temperature (20-40 degrees C) and Reynolds number (50-500) are studied for heat flux of 50 W/cm(2). Convective heat transfer coefficient and pressure drop are increased by about 42.24% and 22% for Al2O3 + MWCNT hybrid nanofluid. The maximum reduction of 21.36% in thermal resistance is obtained for Al2O3 + MWCNT hybrid nanofluid in comparison to DI water. Heat transfer effectiveness and figure of merit are above one for all the hybrid nanofluids which conclude that hybrid nanofluid is better option for electronics cooling over DI water. Al2O3 + MWCNT hybrid nanofluid is better in terms of heat transfer effectiveness; whereas, Al2O3 + AlN hybrid nanofluid (oxide-nitrite mixture) has maximum heat transfer coefficient to pressure drop ratio and coefficient of performance. (C) 2019 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
机译:通过使用去离子(DI)水分的不同纳米颗粒混合物分散杂交纳米流体实验地分析了迷你烷基散热器的水热特性。考虑本研究,考虑Al2O3,MgO,SiC,AlN,MWCNT和Cu纳米粒子。将不同的纳米颗粒组合(氧化物氧化物,碳化物 - 碳化物,氧化物 - 氮化物,氧化碳 - 碳纳米管和氧化物 - 金属)以50/50体积的基础流体(DI水)的比例为0.01%的体积浓度的冷却剂。体积流速(0.1-0.5LPM),流体入口温度(20-40℃)和雷诺数(50-500)的影响用于50W / cm(2)的热通量。对于Al 2 O 3 + MWCNT杂交纳米流体,对流传热系数和压降增加约42.24%和22%。与DI水相比,为Al 2 O 3 + MWCNT杂交纳米流体获得热阻的最大降低21.36%。所有杂交纳米流体的传热效能和优异的数字高于一个结论,所述杂交纳米流体是杂交纳米流体更好地选择在DI水上冷却的电子。 Al2O3 + MWCNT杂交纳米流体在传热效果方面更好;然而,Al 2 O 3 + Aln杂化纳米流体(氧化物 - 亚硝酸盐混合物)具有最大的传热系数与压降比和性能系数。 (c)2019年日本粉末技术学会。由elsevier b.v发表。和日本粉末科技会。版权所有。

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