An exploratory study on using Slippery-Liquid-Infused-Porous-Surface (SLIPS) for wind turbine icing mitigation
An exploratory study on using Slippery-Liquid-Infused-Porous-Surface (SLIPS) for wind turbine icing mitigation
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DOI：
10.1016/j.renene.2020.10.013
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发表时间：
2020-12-01
期刊：
影响因子：
8.7
通讯作者：
Hu, Hui
中科院分区：
文献类型：
--
作者：
Ma, Liqun;Zhang, Zichen;Hu, Hui
为探索多孔滑液表面（SLIPS）在风力涡轮机防冰中的应用潜力，进行了试验研究。通过将润滑油注入纳米纤维膜中来制备SLIPS，该纳米纤维膜可以牢固地粘附在涡轮机叶片模型的表面上。虽然发现SLIPS有效地抑制了叶片表面上的冲击积冰，其中施加了强的空气动力，但仍然发现冰在叶片滞流线附近积冰，其中空气动力处于其最小值。一种新的混合防/除冰策略，将SLIPS与最小化的前缘加热相结合，可以有效地去除整个叶片表面上的积冰。考虑到SLIPS用于风力涡轮机结冰缓解的实际用途，还进行了综合实验研究以评估SLIPS的耐久性，以抵抗基底材料的磨损和由于“雨蚀”效应而导致的注入的润滑油的消耗。结果发现，“雨蚀”的影响会导致显着的表面润湿性下降，大量的冰粘附增量，甚至结构故障的SLIPS作为雨蚀试验的持续时间的增加。(c)2020爱思唯尔有限公司版权所有。
An experimental study was conducted to explore the potentials of using a Slippery-Liquid-Infused -Porous-Surface (SLIPS) for wind turbine icing mitigation. The SLIPS was prepared by infusing a lubricant oil into a nanofibrous membrane, which can stick firmly to the surface of a turbine blade model. While the SLIPS was found to effectively suppress impact ice accretion on the blade surface where strong aerodynamic forces are exerted, ice was still found to accrete in the vicinity of the blade stagnation line where aerodynamic forces are at their minimum. A novel hybrid anti-/de-icing strategy to integrate the SLIPS with a minimized leading-edge heating was demonstrated to effectively remove the ice accretion over entire blade surface. An comprehensive experimental study was also performed to evaluate the durability of the SLIPS to resist wearing away of the substrate materials and depletion of the infused lubricant oil due to "rain erosion" effects, in considering its practical usage for wind turbine icing mitigation. It was found that the "rain erosion" effects would induce significant surface wettability degradation, substantial ice adhesion increment and even structural failures to the SLIPS as the duration of the rain erosion testing increases. (c) 2020 Elsevier Ltd. All rights reserved.