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首页> 外文期刊>International Journal of Heat and Mass Transfer >An experimental investigation of heat transfer enhancement of a minichannel heat sink using Al_2O_3-H_2O nanofluid
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An experimental investigation of heat transfer enhancement of a minichannel heat sink using Al_2O_3-H_2O nanofluid

机译：Al_2O_3-H_2O纳米流体增强微通道散热器传热的实验研究

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摘要

The thermal performances of a minichannel heat sink are experimentally investigated for cooling of electronics using nanofluid coolant instead of pure water. The Al_2O_3-H_2O nanofluid including the volume fraction ranging from 0.10 to 0.25 vol.% was used as a coolant. The effects of different flow rates of the coolant on the overall thermal performances are also investigated. The flow rate was ranged from 0.50 to 1.25 L/min as well as the Reynolds number from 395 to 989. The coolant was passed through a custom made copper minichannel heat sink consisting of the channel height of 0.8 mm and the channel width of 0.5 mm. The experimental results showed the higher improvement of the thermal performances using nanofluid instead of pure distilled water. The heat transfer coefficient was found to be enhanced up to 18% successfully. The nanofluid significantly lowered the heat sink base temperature (about 2.7 ℃) while it also showed 15.72% less thermal resistance at 0.25 vol.% and higher Reynolds number compared to the distilled water.
机译：实验研究了微通道散热器的热性能，以使用纳米流体冷却剂代替纯水冷却电子设备。体积分数为0.10至0.25体积％的Al_2O_3-H_2O纳米流体用作冷却剂。还研究了冷却剂的不同流速对整体热性能的影响。流速范围为0.50至1.25 L / min，雷诺数为395至989。冷却液通过定制的铜制迷你通道散热器，该通道由0.8 mm的通道高度和0.5 mm的通道宽度组成。实验结果表明，使用纳米流体代替纯蒸馏水可提高热性能。发现传热系数成功提高到18％。与蒸馏水相比，纳米流体显着降低了散热器的基础温度（约2.7℃），同时在0.25 vol。％处的耐热性也降低了15.72％，在更高的雷诺数下显示出。

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  • 作者

    M.R. Sohel; S.S. Khaleduzzaman; R. Saidur; A. Hepbasli; M.F.M. Sabri; I.M. Mahbubul;

  • 作者单位

    Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Energy Systems Engineering, Faculty of Engineering, Yasar University, Bornova, Izmir, Turkey;

    Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nanofluid; Heat sink; Minichannel; Heat transfer; Electronics cooling;

    机译：纳米流体散热器;迷你频道;传播热量;电子冷却;

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