Nanoscale “Earthquake” Effect Induced by Thin Film Surface Acoustic Waves as a New Strategy for Ice Protection

Yang, Deyu, Tao, Ran, Hou, Xianghui, Torun, Hamdi, McHale, Glen, Martin, James and Fu, Richard (2021) Nanoscale “Earthquake” Effect Induced by Thin Film Surface Acoustic Waves as a New Strategy for Ice Protection. Advanced Materials Interfaces, 8 (2). p. 2001776. ISSN 2196-7350

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Ice accretion often poses serious operational and safety challenges in a wide range of industries, such as aircraft, wind turbines, power transmission cables, oil field exploration and production and marine transport. Great efforts have been expended to research and develop viable solutions for ice prevention. Effective ice protection techniques, however, have yet to be developed. Ice prevention measures that are currently available often consume significant amounts of de-icing chemicals or energy, and these approaches are expensive to operate and have long-term economic and environmental impacts. In this study, a new ice protective strategy based on thin film surface acoustic waves (SAWs) is proposed that generates: nanoscale ‘earthquake’-like vibrations, acoustic streaming, and acousto-heating effects, directly at the ice-structure interface, which actively and effectively delays ice nucleation and weakens ice adhesion on the structure surface. Compared with the conventional electro thermal de-icing method, the SAW approach demonstrates a muchimproved energy efficiency for ice-removal. The potential for the dual capability of autonomous ice monitoring and removing functions using the SAW generation elements as transducers has also been explored.

Item Type: Article
Additional Information: Funding information: D.Y. and R.T. contributed equally to this work. This work was financially supported by the UK Engineering and Physical Sciences Research Council (EPSRC) grants EP/P018998/1, Special Interest Group of Acoustofluidics under the EPSRC‐funded UK Fluidic Network (EP/N032861/1), and Natural Science Foundation of SZU (Grant no. 860/000002110816). The support from EPSRC Centre for Doctoral Training in Renewable Energy Northeast Universities (ReNU) for funding through grant EP/S023836/1, the Propulsion Futures Beacon project, the University of Nottingham, and the joint Ph.D. studentship between the China Scholarship Council (CSC) and the University of Nottingham is acknowledged.
Uncontrolled Keywords: Surface acoustic wave, icing, ice protection, icing monitoring
Subjects: H900 Others in Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: John Coen
Date Deposited: 30 Nov 2020 09:18
Last Modified: 23 Dec 2021 03:30

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