CAREER: Multiphysics Development of Novel Self-Powered, Controlled and Reconfigurable Bio-Inspired Micro Liquid Cooling Systems

0846318 a silva该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。本研究旨在开发一种新型的仿生单相液体冷却系统，用于三维集成电路。该研究的新特点有两个：(i)使用自然系统中常见的冷却剂流动通道模式，以及（ii）生物启发冷却剂流动路径的实时自调节复杂性。后一种功能是通过使用温度敏感形状记忆形状合金在流动通道内构建微调节器来调节局部温度并重新分配冷却剂。智力优势：仿生流道，其液压直径约为500微米，将被蚀刻在硅片上。各种微加工步骤将用于最终嵌入镍钛流调节器到硅衬底。这些小型调节器将根据当地温度打开或关闭，并动态控制冷却剂通过流道矩阵的流动路径。将使用一种独特的实验装置进行测量，以确定温度敏感门响应和控制局部温度的能力。实验研究将辅以数值研究，包括模拟流动调节器对不同温度和冷却剂流动分布的耦合动态响应。更广泛的影响：所提出的方法可以实现有效冷却集成电路的新方法，以允许在更广泛的条件下运行，同时最大限度地减少冷却剂泵送功率需求。拓展活动将包括来自K-12、K-14、K-16和K-20年级的代表性不足的学生参与项目相关任务。由PI开发的“接受指导者计划”（AMP）促进了特定教育水平的学生与高水平学生的合作，后者将成为他们的导师。AMP将由PI管理，并由德克萨斯大学奥斯汀分校工程学院工程机会均等项目提供支持。AMP的学生招募将通过一个新的以研讨会为基础的项目“你也可以”（You Can Too）进行，在这个项目中，未被充分代表的学生可以与本科生和研究生的榜样见面，并与他们互动，这些榜样必须克服重大障碍才能继续他们的工程教育。一门名为“仿生传输现象系统”的新课程也将被开发。最后，PI将以演讲者、志愿者和导师的身份参加ASME中部德克萨斯州分会和UT探索周末。

0846318da SilvaThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This research seeks to develop a new class of bio-inspired, single phase liquid cooling systems for application in three-dimensional integrated circuitry. The novel features of the research are twofold: (i) use of coolant flow channel patterns commonly found in natural systems, coupled with (ii) real-time self-adjusting complexity of the bio-inspired coolant flow path. The latter feature is enabled by the use of temperature sensitive shape memory shape alloys to construct micro regulators within the flow channels that adjust to local temperatures and redistribute the coolant. Intellectual Merit: Bio-inspired flow paths, which will have hydraulic diameters on the order of 500 microns, will be etched into a silicon wafer. Various microfabrication steps will be used to ultimately embed nickel-titanium flow regulators into the silicon substrate. These small regulators will open or close in response to local temperatures and dynamically control the flow path of the coolant through the flow channel matrix. Measurements, conducted with a unique experimental apparatus, will be made in order to determine the ability of the temperature sensitive gates to respond to and control local temperatures. The experimental study will be complemented by a numerical investigation including simulation of the coupled dynamic response of the flow regulators to varying temperature and coolant flow distributions.Broader Impacts: The proposed approach may enable new approaches to efficiently cool integrated circuitry to allow operation over a wider range of conditions while minimizing coolant pumping power requirements. Outreach activities will include underrepresented students from K-12, K-14, K-16 and K-20 levels on project related tasks. The Adopt a Mentee Program (AMP) developed by the PI facilitates partnering students at a given educational level with students at advanced levels who become their mentors. The AMP will be administered by the PI with support provided by the Equal Opportunity in Engineering program of School of Engineering at The University of Texas at Austin. Recruitment of students for AMP will be through a new seminar-based program, You Can Too, where underrepresented students can meet and interact with undergraduate and graduate student role models who had to overcome major obstacles to pursue their engineering education. A new course entitled Bio-Inspired Transport Phenomena Systems will also be developed. Finally, the PI will participate in the ASME Central Texas Chapter and the UT Explore Weekend as a speaker, volunteer and mentor.