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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Thermal energy absorption in a heat sink with elliptical cross section and tangential impinging inlet flow of nanofluid
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Thermal energy absorption in a heat sink with elliptical cross section and tangential impinging inlet flow of nanofluid

机译：散热器中的热能吸收，具有椭圆形横截面和纳米流体切向撞击入口流动

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Highlights?Miniature tangential heat sink with impinging inlet flow is studied experimentally.?Nanoparticles dispersion and flow regime variations are used simultaneously.?The effect of using elliptical cross section is studied and compared to the cylindrical.?Employing impinging inlet flow indicates significant heat transportation enhancement.AbstractHeat sink has been widely used as a cooling device for electronic systems in recent years. Because of the considerable heat generated by electronic devices and low efficiency of conventional heat sinks, a large number of researches have been focused on the performance enhancement of these systems. Innovative heat sink in the presence of Al2O3-water nanofluid is experimentally investigated in this study. The effects of adding various volume fractions of nanoparticles on the convective heat transfer coefficient, pressure drop, thermal resistance and heat sink base temperature are investigated in different flow rates from 6.14 to 32.2 (cm3/s). The obtained results reveal that the convective heat transfer enhances 16% and thermal resistance reduces more than 15%. The innovative thermal energy absorption system in present research is a tangential heat sink with impinging liquid jet and elliptical cross section which is expected to be able to achieve significant enhancement in thermal energy removal as a cooling device, which is proposed as the novelty here. Also comparison between cylindrical and elliptical cross sections in this type of heat sink is carried out. The results disclose that using tangential heat sink with liquid jet impingement achieves convective heat transfer coefficient 2.26 times greater than conventional heat sink in the presence of pure water.]]>
机译：<！[cdata [ 亮点 ？ 通过实验研究了带有冲击入口流的微型切向散热器。 ？ 纳米粒子色散和流动状态变化同时使用。 ？ 研究了使用椭圆横截面的效果，并与圆柱形进行比较。 ？ 采用撞击入口流入解释显着的热量运输增强。 抽象 散热器已被广泛用作近年来电子系统的冷却装置。由于电子设备产生的相当大的热量和传统散热器的低效率，大量研究集中在这些系统的性能增强上。在AL 2 O 3 -WATER NANOFLUID在实验上调查这项研究。将纳米颗粒添加各种体积分数对对流传热系数，压降，热阻和散热器基础温度的影响，以6.14至32.2（CM 3 < / ce：sup> / s）。所得结果表明，对流热传递增强了16％，热阻降低了15％以上。本研究中的创新热能吸收系统是切向散热器，其具有撞击液体射流和椭圆形横截面，该射流和椭圆形横截面预计将能够在这里提出作为冷却装置的热能去除的显着增强，这是在此提出的新颖性。还执行这种类型的散热器中的圆柱和椭圆形横截面之间的比较。结果公开了利用液体喷射冲击的切向散热器，在纯水存在下实现对流传热系数2.26倍大的常规散热器。 ]]>

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