EAGER: A bio-inspired approach for improving ice-prevention and ice-removal

EAGER：一种改善防冰和除冰的仿生方法

• 批准号: 2337118
• 负责人: Kyoo-Chul Park
• 金额: $ 9.97万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-01 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2337118&HistoricalAwards=false
• 关键词: EAGER; bio; inspired; approach; improving

Ice forms on surfaces in cold and humid environments through various processes, including the freezing of condensed vapor and deposited airborne droplets. The fundamental understanding of the ice formation and ice removal on soft surfaces will lead to development of more effective anti-icing surfaces. The proposed research will contribute to improving the robustness of national infrastructures against icing. This study has the potential to enhance ice-resistant sensors for machines and drones exposed to extreme manufacturing conditions or outdoor weather. Current approaches to icing problems are limited by the incorporation of rigid surface textures and/or coatings. This project aims to visualize and understand the water freezing processes on soft materials (such as a layer of synthetic hair) under the forced convection of humid air. An advanced X-ray imaging technique will be used to visualize the phase change processes and droplet dynamics under heat convection conditions. The in-situ observation of ice formation and its removal on soft surfaces will generate valuable insights spanning various fields, including transportation, renewable energy, and telecommunication.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

通过各种过程在寒冷和潮湿环境中表面形成冰，包括冷凝蒸气和沉积的空气液液滴的冷冻。对软表面上冰形成和去除冰的基本理解将导致更有效的抗染色表面的发展。拟议的研究将有助于改善国家基础设施抗糖霜的鲁棒性。这项研究有可能增强暴露于极端制造条件或室外天气的机器和无人机的耐冰的传感器。当前的结冰问题方法受到刚性表面纹理和/或涂层的融合而受到限制。该项目旨在在潮湿空气的强制对流下可视化和理解软材料（例如一层合成头发）上的水冷冻过程。高级X射线成像技术将用于在热对流条件下可视化相变过程和液滴动力学。对冰层形成及其在软表面上的拆除的原位观察将产生跨越各种领域的宝贵见解，包括运输，可再生能源和电信。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力和更广泛的影响来通过评估来获得支持的值得的支持，这是值得的。