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首页> 外文会议>American Society of Mechanical Engineers(ASME) Summer Heat Transfer Conference(HT2005) vol.2; 20050717-22; San Francisco,CA(UA) >MICROSCALE BOILING HEAT TRANSFER NEAR THE MENISCUS
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MICROSCALE BOILING HEAT TRANSFER NEAR THE MENISCUS

机译：梅尼库斯附近的微尺度沸腾传热

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摘要

Results are presented experimentally measuring the localized temperature profile due to microscale boiling of a silicon-Pyrex bonded wafer with a 100 μm deep, 500 μm wide and six mm long microchannel. Experiments were performed using an infrared camera equipped with a magnifying lens. By using a camera, the dynamic temperature profile is shown from the inside channel all the way out to where the temperature of the wafer reaches the bulk temperature of the heating source. Temperature profiles are shown for both water and methanol as the working fluid applying between five and twenty degrees Celsius of superheat to the bulk wafer. Using these results, a discussion of the relevant heat transfer modes and non-dimensional numbers is given to gain insight into the range of influence that phase change in a microchannel has on the temperature of the wafer. Additionally, discussion is given about modeling of microscale phase change using a commercial fluid dynamics software package. The importance of these results with respect to implementation into the fuel intake manifold for a micro engine based portable power system is also discussed.
机译：结果显示了实验测量的结果，该测量结果是由于具有100μm深，500μm宽和6 mm长的微通道的硅-派热克斯粘合晶片的微尺度沸腾而引起的局部温度分布。使用配备有放大镜的红外照相机进行实验。通过使用摄像头，动态温度曲线从内部通道一直显示到晶片温度达到加热源整体温度的位置。图中显示了作为工作流体的水和甲醇的温度曲线，这些温度将5至20摄氏度的过热作用于大块晶圆。使用这些结果，对相关的传热模式和无量纲数进行了讨论，以深入了解微通道中的相变对晶片温度的影响范围。另外，给出了关于使用商业流体动力学软件包的微观相变建模的讨论。还讨论了这些结果对于实现基于微型发动机的便携式动力系统的燃料进气歧管的重要性。

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