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ELECTRONICS SPOT COOLING WITH LIQUID NITROGEN

机译:液态氮电子点冷却

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摘要

This paper describes an ongoing research to evaluate and characterize electrohydro-dynamic (EHD) meso- and micro-pumps for spot cooling of sensors. In the proposed concept, the localized cooling is achieved by means of a flow of liquid nitrogen that is driven by an ion-drag pump towards the heat source, where heat is directly removed. First, a numerical heat transfer model will illustrate the advantages of the proposed concept of spot cooling with liquid nitrogen against a conventional conduction cooling. Next, we will present experimental results for pumping of liquid nitrogen via (EHD) a pump at the meso-scale, as well as experiments with EHD micro-pumps for pumping of HFE-7100 at room temperature. The objective of this research is to establish the optimum operational and design conditions for micro-pumping of liquid nitrogen for spot cooling applications.
机译:本文介绍了一项正在进行的研究,以评估和表征用于传感器点冷却的电动流体(EHD)中型和微型泵。在提出的概念中,局部冷却是通过液氮流实现的,液氮流由离子拖动泵驱动朝向热源,在此直接除去热量。首先,一个数值传热模型将说明所提出的用液氮进行点冷却相对于传统的传导冷却的优点。接下来,我们将介绍通过中等尺寸的(EHD)泵泵送液氮的实验结果,以及在室温下通过EHD微型泵泵送HFE-7100的实验结果。这项研究的目的是为点冷却应用中的液氮微泵建立最佳操作和设计条件。

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