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，如微加工离子风泵必须提供一个上级解决方案，满足行业要求的散热效果，是无声的，不包含移动部件，并拥有一个低重量和体积。为了满足这一需求，本研究的目的是建模，设计，制造和测试一种创新的，微制造的离子风泵，最终优于传统的CPU松饼风扇。离子风泵装置通过在发射电极和收集电极之间施加足够高的电压来工作，这使得附近的空气分子由于高电场的存在而从发射器被推进到收集器，从而导致对流冷却。这项工作所采用的方法和途径包括：计算多物理场建模的设备设计优化，粒子图像测速流动可视化，设备的微细加工（包括碳纳米管作为发射器尖端的增长）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一起使用，与传统技术相比，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，使其更可靠，形状更小，更安静。该提案的智力价值包括离子风泵设备的系统建模，设计，制造和测试，这将导致在电流体力学、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，包括初始计算建模，第一代测试结构的微细加工，流动可视化和冷却现象的实验验证。这项研究是变革性的，因为我们正在研究电流体力学和热传输的交叉点，其中存在着独特的可商业化的热管理解决方案的潜力。该计划将利用PI实验室和CWRU多用户设施中的成熟技术，利用研究人员的各自优势，该计划的更广泛影响包括推进创新的微制造热管理设备的发现和开发，以实现高速电子行业的未来发展。所有级别的学生都将参与这个研究项目：至少一个博士学位。学生，一个硕士生，四个本科生和各种高中生将介绍与这项工作相关的现实世界的问题。将在Abramson博士的“纳米技术导论”课程中开设为期两周的微加工/MEMS课程。为了促进高中的参与，将在当地高中测试并公开传播一个关于热管理主题的令人兴奋的教学模块。研究结果将通过会议介绍、期刊论文和网站出版物进一步传播，以提高科学和技术认识。