Electromagnetic Regulation of Electrolyte Solution Heat Convection in Microchannels.
Electromagnetic Regulation of Electrolyte Solution Heat Convection in Microchannels.
复制标题
微通道中电解质溶液热对流的电磁调节
DOI：
10.3390/mi9060262
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发表时间：
2018-05-28
期刊：
影响因子：
3.4
通讯作者：
Ma Y
中科院分区：
文献类型：
--
作者：
Song M;Chi X;Wang Y;Ma Y
随着微电子技术和微电子机械系统技术的飞速发展，电子元器件的体积越来越小，性能也越来越高。然而，在这种情况下，它们的能耗和产热量也在不断增加，这对散热提出了很大的挑战。本文采用电磁驱动技术驱动电解液在微通道内流动，实现微通道壁面的高效对流换热。通过改变电磁场的大小和方向，研究了其对流换热性能的规律。结果表明，微通道的Nu数随Ha数和磁方向角的增大而增大，随电位差的增大而减小。根据4个因素的平均指数，确定了Ha=0.00006，Vb=0.00006，Pe=90，α=90°时，电解质溶液的对流换热性能最好。在此基础上，利用Ha数、电位差和磁方向角的灵敏度分析来调节对流换热性能。本文为微电子和微电子机械系统的设计提供了一定的理论支持。
With the rapid development of microelectronics and micro-electromechanical system technology, the electronic components have become smaller and the performance has become higher. Under this condition, however, their energy consumption and heat production have also increased continuously, which poses a great challenge to heat dissipation. In this paper, electromagnetic driving technology is applied to drive the electrolyte solution flow within a microchannel to realize efficient heat convection with microchannel walls. By changing the magnitude and direction of electric–magnetic field, the regulation of heat convection performance is studied. The results show that the Nu number of microchannel increases as the Ha number and magnetic direction angle increases, while it decreases as the potential difference increases. According to the average index of the four factors, it was determined that the electrolyte solution had the best heat convection performance with Ha = 0.05, Vb = 0.00006, Pe = 90, and α = 90°. After that, sensitivity analysis of the Ha number, potential difference and magnetic direction angle was used to regulate the heat convection performance. This paper may provide some theoretical support for the design of microelectronics and micro-electromechanical systems.
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