NSF/Sandia: Novel Thermometry Techniques and Nanostructured Surfaces to Enhance Micro- and Meso-Scale Thermal Management Technologies

NSF/桑迪亚：新型测温技术和纳米结构表面可增强微米级和中观级热管理技术

• 批准号: 0625865
• 负责人: Minami Yoda
• 金额: $ 32.5万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0625865&HistoricalAwards=false
• 关键词: NSF; Sandia; Novel; Thermometry; Techniques

ABSTRACTNational Science FoundationProposal Number: CTS-0625865Principal Investigator: Yoda, MinamiAffiliation: Georgia Tech Research Corporation GA Institute of Technology Proposal Title: NSF/Sandia: Novel Thermometry Techniques and Nanostructured Surfaces to Enhance Micro- and Meso-Scale Thermal Management TechnologiesThis proposal was submitted in response to Program Solicitation NSF 05-616 in the focus area ofthermal transport and fluid mechanics. This research proposes to develop nanostructured surfaces for liquid cooling. Such features (e.g. carbon nanotubes) greatly increase surface area and may enhance microscale convective heat transfer. These surfaces have the potential to dramatically increase the thermal performance of single-phase liquid cooling and manage local "hot spots."Developing and evaluating effective mesoscale liquid cooling systems also requires measuring liquid-phase and wall surface temperatures in complex piping systems with dimensions comparable to the diameter of a human hair. Yet there are few if any practical thermometry techniques that can measure temperatures in such small convoluted geometries without disturbing the coolant flow, thereby affecting cooling performance. This research therefore will also develop novel nonintrusive high spatial resolution thermometry techniques that can be used in complex microsystems. These techniques will then be used to characterize and optimize the nanostructured surfaces for enhanced convective heat transfer. The intellectual merit of the work is in the development of microchannels with carbon nanotube-encrusted surfaces. They will be fabricated in silicon and incorporate heating and embedded temperature sensors to characterize overall thermal performance. In addition, local thermal performance will be characterized using evanescent wave fluorescence thermometry (EFT). To extend nonintrusive thermometry techniques to complex silicon structures, a new infrared (IR) thermometry technique will be developed that can nonintrusively measure temperature in silicon microchannels which are opaque, at least at visible wavelengths by exploiting the temperature-sensitive characteristics of IR quantum dots. The fundamental knowledge derived from this work will have Broad Impacts on the future development of micro cooling systems for electronic systems and in the experimental diagnostics available for their characterization. The impact of the research on people will include work with inner-city high school students to develop Web-based educational materials on nano- to microscale technology.

摘要科学基金会质量编号：CTS-0625865 PRINCIPAL研究者：Yoda，Minamiafliation：Georgia Tech研究公司GA GA Institution of Technology Institute of Technology Insposal建议：NSF/SANDIA：NSF/SANDIA：新颖的温度测定技术和纳米结构的表面05-616在热运输和流体力学的重点区域中。这项研究建议开发用于液体冷却的纳米结构表面。 这些特征（例如碳纳米管）大大增加了表面积，并可能增强微观对流传热。这些表面有可能显着提高单相液体冷却的热性能并管理局部“热点”。开发和评估有效的中尺度液体冷却系统还需要测量与人毛直径相当的复杂管道中的液相和壁表面温度。 然而，几乎没有任何实用的温度计技术可以在如此小的复杂几何形状中测量温度而不会干扰冷却液流动，从而影响冷却性能。因此，这项研究还将开发出可用于复杂微型系统的新型非侵入性高空间分辨率高温技术。 然后，这些技术将用于表征和优化纳米结构表面以增强对流传热。 这项工作的智力优点在于开发具有碳纳米管表面的微通道。 它们将在硅中制造，并结合加热和嵌入式温度传感器，以表征整体热性能。 另外，使用evaneScent波荧光温度计（EFT）来表征局部热性能。为了将非引人注目的温度计技术扩展到复杂的硅结构，将开发出一种新的红外（IR）温度计技术，可以通过利用IR量子点的温度敏感性特征来实现不透明波长的硅微通道中的温度。 从这项工作中得出的基本知识将对电子系统的微冷却系统的未来开发以及可用于其表征的实验诊断。 研究对人的影响将包括与市中心高中学生合作开发基于网络的纳米技术和微观技术的教育材料。