Workshop on Micro and Nano Structures for Phase Change Heat Transfer

在过去的十年里，微纳米工程结构上的沸腾、蒸发和冷凝受到了极大的关注。现在很明显，这种表面结构在推进液汽相变系统方面具有很大的前景，并且是实现超高热流密度系统（如计算机处理单元（cpu），激光二极管和功率放大器）热管理的关键。因此，在这些领域的研究工作有了显著的增加，在最近的会议上有了显著的进展。然而，为了将这些过程用于各种设备和重要应用，仍然需要对复杂相变过程进行全面的了解，这是目前所缺乏的。此外，还需要制定一个路线图，确定未来一代相变技术的需求。本次研讨会解决了这些缺点，并为工业、政府机构和学术界提供了路线图，以加速和优化由微纳米技术提供的优越传热方法的发展。为了实现这些目标，研讨会的重点是：1)相变过程的最新知识，2)建模，计量，操作能力的进展，3)相变研究的变革机会和未来方向，以及4)相变设备和应用的发展。该基金通过帮助创建一个论坛来支持该研讨会，该论坛汇集了来自不同学科的专家，将解决当前和未来的重大热管理挑战。美国国家科学基金会的支持也允许邀请年轻的参与者以及真正的先驱参加这个研讨会。研讨会汇集了来自不同学科的专家，包括机械工程、化学工程和材料科学，重点是传热界，以确定相变研究的关键挑战、进展和新方向。为期两天的广泛研讨会确定了关键的研究、开发和设计需求，并为此类未来的努力提供了指导方针。本次研讨会的成果集中于开发一个路线图，该路线图定义了未来一代相变技术的需求，并记录在档案审查文章中。

CBET-1261824PI: Peles Boiling, evaporation, and condensation on micro and nano engineered structures have received significant interest over the last decade. It is now evident that such structures on surfaces hold great promise to advance liquid-vapor phase change systems and are key to enable thermal management of ultra-high heat flux systems, such as computer processing units (CPUs), laser diodes, and power amplifiers. Accordingly, there has been a significant increase in research efforts in these areas with a significant emergence in recent conferences. However, comprehensive understanding of complex phase-change processes is still needed, which is currently lacking, to harness these processes for various devices and important applications. Furthermore, a roadmap that defines the needs for the future generation of phase-change technologies needs to be developed. This workshop address these shortcomings and provide a roadmap to industry, government agencies, and the academic communities to accelerate and optimize the development of superior heat transfer methods offered by micro and nano technologies. To achieve these goals, the workshop focuses on: 1) State-of-the-art knowledge of phase change processes, 2) Advancements in modeling, metrology, manipulation capability, 3) Transformative opportunities and future directions for phase-change research, and 4) Development of phase-change devices and applications.The grant supports this workshop by helping create a forum that brings together experts from various disciplines that will solve significant current and future thermal management challenges. The NSF support also allows extending the invitation to young participants as well as true pioneers to this workshop. The workshop brings together experts from various disciplines including mechanical engineering, chemical engineering and material science, with an emphasis on the heat transfer community to identify critical challenges, advancements, and new directions in phase-change research. The two-day extensive workshop identifies key research, development, and design needs, and provides a guideline for such future endeavors. The outcome of this workshop is focused on developing a roadmap that defines the needs for the future generation of phase-change technologies, as well as documented in archival review articles.