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.

摘要美国国家科学基金会提案编号：CTS-0625865 首席研究员：Yoda, Minami 隶属关系：佐治亚理工学院研究公司 GA 理工学院 提案标题：NSF/桑迪亚：新型测温技术和纳米结构表面以增强微米和细观尺度热管理技术该提案于响应热传输和流体力学重点领域的 NSF 05-616 计划征集。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，并可以增强微尺度对流换热。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”。开发和评估有效的介观液体冷却系统还需要测量尺寸相当的复杂管道系统中的液相和壁表面温度。到人类头发的直径。 然而，很少有实用的测温技术可以测量如此小的复杂几何形状中的温度，而不干扰冷却剂流动，从而影响冷却性能。因此，这项研究还将开发可用于复杂微系统的新型非侵入式高空间分辨率测温技术。 然后，这些技术将用于表征和优化纳米结构表面，以增强对流换热。 这项工作的智力价值在于开发了具有碳纳米管包裹表面的微通道。 它们将采用硅制造，并结合加热和嵌入式温度传感器来表征整体热性能。 此外，局部热性能将使用倏逝波荧光测温法 (EFT) 进行表征。为了将非侵入式测温技术扩展到复杂的硅结构，将开发一种新的红外（IR）测温技术，该技术可以通过利用红外量子点的温度敏感特性，非侵入式地测量不透明的硅微通道中的温度，至少在可见波长范围内。 从这项工作中获得的基础知识将对电子系统微冷却系统的未来发展以及可用于其表征的实验诊断产生广泛影响。 这项研究对人们的影响将包括与市中心的高中生合作开发有关纳米到微米技术的网络教育材料。