An Innovative Microfabricated Ionic Wind Pump Array for Thermal Management Applications

用于热管理应用的创新微制造离子风泵阵列

• 批准号: 1067159
• 负责人: Alexis Abramson
• 金额: $ 20.12万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-01 至 2015-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1067159&HistoricalAwards=false
• 关键词: Innovative; Microfabricated; Ionic; Wind; Pump

PIs: Norman C. Tien, Alexis R. Abramson Proposal #: 1067159As microelectronics components continue to be miniaturized, power density is increasing substantially, and considerations for novel thermal management solutions are becoming critical. New technologies such as the proposed microfabricated ionic wind pump must offer a superior solution that meets industry requirements for heat removal effectiveness and is silent, contains no moving parts, and boasts a low weight and volume. In response to this need, the objective of this research is to model, design, fabricate and test an innovative, microfabricated ionic wind pump that ultimately outperforms a conventional CPU muffin fan. The ionic wind pump device works by applying a sufficiently high voltage between emitting and collecting electrodes, which causes nearby air molecules to be propelled from emitter to collector due to the presence of a high electric field, resulting in convective cooling. Methods and approaches employed for this work include: computational multiphysics modeling for device design optimization, particle image velocimetry for flow visualization, device microfabrication (including growth of carbon nanotubes as emitter tips) and device testing. The expected outcome of this work will be the development of an innovative ionic wind pump device that either alone or in conjunction with a thermal spreader, demonstrates enhanced heat removal capabilities as compared with conventional technologies. This "active heat sink" device will meet various industry requirements and will have the potential to replace existing cooling fan technologies used in laptops and other portable devices, making them more reliable, of smaller form factors and quieter.The intellectual merit of this proposal includes the systematic modeling, design, fabrication and testing of an ionic wind pump device, which will lead to the advancement of knowledge and understanding in the fields of electrohydrodynamics, thermal transport, fluid mechanics and microfabrication. Some preliminary data for this work has been collected including initial computational modeling, microfabrication of first generation test structures, flow visualization and experimental validation of the cooling phenomenon. This investigation is transformative because we are investigating at the intersection of electrohydrodynamics and thermal transport, wherein lies the potential for a unique and commercializable thermal management solution. The proposed program will leverage the respective strengths of the investigators, utilizing proven techniques available in the PI's laboratories and at multi-user facilities at CWRU.The broader impact of this proposal includes advancing the discovery and development of an innovative, microfabricated thermal management device to enable future progress in the high-speed electronics industry. All levels of students will be involved in this research project: at least one Ph.D. student, one Masters student, four undergraduate students and various high school students will be introduced to real-world problems associated with this work. A two week lesson on microfabrication/MEMS in Dr. Abramson's "Introduction to Nanotechnology" course will be developed. To promote high school participation, an exciting teaching module on the topic of thermal management will be tested at local high schools and publicly disseminated. Results from research will be further disseminated via conference presentations, journal papers and web site publication to enhance scientific and technological understanding.

PI：Norman C. Tien、Alexis R. Abramson 提案编号：1067159随着微电子元件不断小型化，功率密度大幅增加，对新型热管理解决方案的考虑变得至关重要。新技术（例如拟议的微型离子风泵）必须提供卓越的解决方案，满足行业对散热效率的要求，并且安静、不包含移动部件、重量轻、体积小。为了满足这一需求，本研究的目标是建模、设计、制造和测试一种创新的微制造离子风泵，其性能最终优于传统的 CPU 松饼风扇。离子风泵装置的工作原理是在发射电极和收集电极之间施加足够高的电压，由于高电场的存在，导致附近的空气分子从发射极被推进到收集极，从而产生对流冷却。这项工作采用的方法和途径包括：用于设备设计优化的计算多物理场建模、用于流动可视化的粒子图像测速、设备微加工（包括作为发射器尖端的碳纳米管的生长）和设备测试。这项工作的预期成果将是开发一种创新的离子风泵装置，无论是单独使用还是与散热器结合使用，与传统技术相比，该装置都具有增强的散热能力。这种“主动散热器”设备将满足各种行业要求，并将有可能取代笔记本电脑和其他便携式设备中使用的现有冷却风扇技术，使它们更可靠、外形更小且更安静。该提案的智力优点包括离子风泵装置的系统建模、设计、制造和测试，这将促进电流体动力学、热传输、流体力学和微加工领域的知识和理解的进步。这项工作的一些初步数据已经收集，包括初始计算模型、第一代测试结构的微加工、流动可视化和冷却现象的实验验证。这项研究具有变革性，因为我们正在研究电流体动力学和热传输的交叉点，其中蕴藏着独特且可商业化的热管理解决方案的潜力。拟议的计划将利用研究人员各自的优势，利用 PI 实验室和 CWRU 多用户设施中可用的成熟技术。该提案的更广泛影响包括推进创新型微制造热管理设备的发现和开发，以实现推动高速电子行业的未来进步。所有级别的学生都将参与该研究项目：至少一名博士生。学生、一名硕士生、四名本科生和多名高中生将了解与这项工作相关的现实问题。 Abramson 博士的“纳米技术导论”课程将开设为期两周的微加工/MEMS 课程。为了促进高中的参与，一个关于热管理主题的令人兴奋的教学模块将在当地高中进行测试并公开传播。研究结果将通过会议演讲、期刊论文和网站出版进一步传播，以增进科学和技术理解。