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Icing Physics Studies Pertinent to Wind Turbine Icing and De/Anti-icing

与风力涡轮机结冰和除冰/防冰相关的结冰物理研究

基本信息

批准号：
1064196
负责人：
Hui Hu
金额：
$ 35.23万
依托单位：
Iowa State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2011
资助国家：
美国
起止时间：
2011-04-01 至 2016-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1064196&HistoricalAwards=false
关键词：
Icing Physics Studies Pertinent Wind

项目摘要

1064196HuWind turbine icing represents the most significant threat to the integrity of wind turbines in cold weather. In this proposed research, an integrated experimental, numerical and theoretical study is carried out to quantify important micro-physical processes pertinent to the wind turbine icing phenomena. More specially, detailed experimental investigations are conducted to examine the transient behavior of unfrozen surface water film and rivulet flows on ice accreting surfaces to elucidate underlying physics for more accurate prediction of ice formation and accretion on the surfaces of wind turbine blades. Computational and theoretical investigations, which include numerical simulations of the three-phase nonlinear coupling between air, water and ice as well as comprehensive asymptotic modeling of those processes, are also conducted to coordinate with the experimental work.Intellectual Merit: By elucidating the underlying physics, the proposed research would significantly improve our understanding about the important micro-physical processes pertinent to wind turbine icing phenomena. A better understanding of the important micro-physical processes will enable us to improve current ice accretion models for more accurate prediction of ice formation and ice accretion on wind turbine blades. The new findings derived from the proposed research can also be used to develop effective and robust anti-/de-icing strategies tailored for wind turbine icing applications to ensure safer and more efficient operation of wind turbines in cold weather.Broader Impact: The proposed research program will be incorporated into the Iowa State's curricula (both undergraduate and graduate). The findings derived from the proposed research will be disseminated broadly to contribute to the knowledge base of icing physics and wind turbine technology. Female and minority students will be recruited to work on the proposed research to promote the participation of underrepresented groups in science and engineering. Various outreach activities are planned to impart K-12 teachers and students, and by extension, the public at large, a greater awareness of renewable energy and wind turbine technology and their importance to our daily lives.

[1064196]在寒冷天气下，风力涡轮机结冰是对风力涡轮机完整性的最大威胁。本研究将实验、数值和理论相结合，对与风力发电机组结冰现象相关的重要微物理过程进行量化研究。更具体地说，进行了详细的实验研究，以检查未冻结的地表水膜和冰积表面上的溪流流动的瞬态行为，以阐明潜在的物理，以便更准确地预测风力涡轮机叶片表面的冰形成和冰积。计算和理论研究，包括空气、水和冰之间三相非线性耦合的数值模拟以及这些过程的综合渐近建模，也进行了配合实验工作。智力优势：通过阐明潜在的物理学，所提出的研究将显著提高我们对与风力涡轮机结冰现象相关的重要微物理过程的理解。更好地了解重要的微物理过程将使我们能够改进当前的冰积聚模型，以便更准确地预测风力涡轮机叶片上的冰形成和冰积聚。从拟议的研究中得出的新发现也可用于开发针对风力涡轮机结冰应用的有效和强大的反/除冰策略，以确保风力涡轮机在寒冷天气下更安全、更有效地运行。更广泛的影响：拟议的研究计划将被纳入爱荷华州立大学的课程（本科和研究生）。从拟议的研究中得出的结果将广泛传播，以促进结冰物理和风力涡轮机技术的知识库。将招募女性和少数族裔学生参与拟议的研究，以促进代表性不足的群体参与科学和工程。计划开展各种外展活动，向K-12的教师和学生以及广大公众宣传可再生能源和风力涡轮机技术，以及它们对我们日常生活的重要性。