ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Anti-icing strategy of superhydrophobic electric thermal composite zoning
Received date: 2024-06-04
Revised date: 2024-09-13
Accepted date: 2024-11-18
Online published: 2024-11-25
As a new type of anti-icing technology， superhydrophobic electric thermal composite surface anti-icing has good anti-icing effect and low energy consumption. Based on the wetting characteristics of superhydrophobic surfaces and the heating characteristics of electric heating films， a composite anti-icing method of superhydrophobic-hydrophobic surface zoning and electric heating zoning is proposed according to the surface icing mechanism. Experimental research on the anti-icing of superhydrophobic electric thermal composite surfaces using an airfoil model was conducted in an icing wind tunnel. The results show that the new partitioned anti-icing method has the lowest anti-icing energy consumption， verifying its feasibility. The experimental results and energy consumption analysis indicate that freezing of the leading edge superhydrophobic surface will immediately cause ice accumulation and therefore require higher energy consumption under the impact of supercooled water droplets. The leading edge hydrophobic surface can maintain its wet anti-icing effect at lower energy consumption. Compared with conventional superhydrophobic electric heating anti-icing methods， the combination of superhydrophobic-hydrophobic surface zoning and electric heating zoning can reduce energy consumption by up to 64.2%， and the influence of temperature and wind speed on this method is relatively small.
Key words： electric heating; superhydrophobic; ice wind tunnel; anti-icing; partition method
Xinle LIU , Yanan JIANG , Rongti XIN , Qinghui LI , Jinsheng CAI . Anti-icing strategy of superhydrophobic electric thermal composite zoning[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2025 , 46(9) : 130784 -130784 . DOI: 10.7527/S1000-6893.2024.30784
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