微矩形槽内的单相强迫对流换热性能实验

航空电子设备集成度和封装密度的增加给电子元器件的热控制问题带来了严峻的挑战，微槽散热器是解决航空电子元器件散热的一条有效途径。本文设计制作了6种不同结构尺寸徽矩形槽道，采用航空电子设备上最常用的乙醇溶液作为冷却工质，进行了徽槽道内单相强迫对流换热性能实验，分析了流体流速、过冷度和微槽结构等对传热特性的影响。

Single-Phase Forced Convection Heat Trat Transfer in Micro Rectangular Channels

Increase in the integration and package density of aviation electronic equipment provides severe challenge to heat control for electronic components, yet the microchannel radiator offers an efficient method for solving the problem of cooling electronic chips and devices. In this paper, 6 micro rectangle channels with different sizes were designed and fabricated; the experiment of single\|phase forced convection heat transfer was conducted with solution of CH\-5OH, the most commonly used coolant for aviation electronic equipment, flowing through those microchannels. The influences of liquid velocity, degree of coolant supercooling, and configuration of microchannels on the heat transfer characteristics were analyzed respectively.