Abstract
The thermal conductivity of a graphene coating for anti-/deicing is rarely studied. This paper presents an improved anti-/deicing efficiency method for composite material anti-/deicing by using the heat-transfer characteristic of a graphene coating. An anti-/deicing experiment was conducted using the centrifugal force generated by a helicopter rotor. Results showed that the graphene coating can accelerate the internal heat transfer of the composite material, thereby improving the anti-icing and deicing efficiency of the helicopter rotor. The spraying process parameters, such as coating thickness and spraying pressure, were also studied. Results showed that reducing coating thickness and increasing spraying pressure are beneficial in preparing a graphene coating with high thermal conductivity. This study provides an experimental reference for the application of a graphene coating in anti-/deicing.
Highlights
When a helicopter is flying at high altitude or in a cold zone, super-cooled water droplets in the air will impact on the surface of the rotor, icing rapidly
Based on the existing research results, this paper presents a method that takes advantage of the heat-transfer characteristics of graphene to combine it with the traditional electric heating method for helicopter rotor anti-/deicing
The results indicate that the graphene coating is helpful in anti-/deicing
Summary
When a helicopter is flying at high altitude or in a cold zone, super-cooled water droplets in the air will impact on the surface of the rotor, icing rapidly. Existing ice control technology for helicopters is classified in terms of active anti-/deicing and passive anti-/deicing. A series of materials, such as carbon-based material [4,5,6], liquid-infused material [7,8,9], and nanocomposites [10,11,12], exhibit anti-icing functions. Most of these materials are suitable for anti-icing in a limited number of icing conditions, while the effect is not ideal under moderate icing conditions. Existing technology cannot satisfy the requirements of anti-/deicing completely and effectively, and a synthesis that combines surface coating with passive deicing should be developed to achieve the dual effect of anti-icing and deicing
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