Experimental Studies of a Novel Anti-Icing Aluminum Conductor With Excellent Durability and Improved Electrical Performance

Dai, Xu; Yuan, Yuan; Liao, Ruijin; Liu, Guoyong; Zhang, Cheng; Huang, Huixin

doi:10.1109/tpwrd.2023.3319321

Cited by 3 publications

(3 citation statements)

References 65 publications

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“…In particular, transmission lines with a special cylindrical geometry can significantly affect the fabrication of the composite nanopore structure [21]. In our previous studies, it was difficult to completely repeatedly prepare this nanopore structure with a similar geometric feature on the Aluminum Conductor Steel Reinforced (ACSR) cable as that of a flat Al substrate.…”

Section: Wettability and Anti-icing Propertiesmentioning

confidence: 99%

“…For difficulties in the micro-structure formation on the cylindrical structure of the Al conductors, the processed area of the Al conductor needs to be considered to determine the electrical parameters of the anodization (current, voltage, time, etc.). In addition, a uniform electric field needs to be provided to prepare a uniform pore structure [21]. Otherwise, it will lead to inconsistent current flowing through the different areas on the ACSR surface, resulting in an uneven distribution of the nanopore structures at different positions, greater fluctuations, and provoking a susceptibility to concentrated heating leading to structural damage.…”

Section: Wettability and Anti-icing Propertiesmentioning

confidence: 99%

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Effects of the Second Anodization Parameters on the Hydrophobicity and Anti-Icing Properties of Al Surface with Composite Nanopore Structure

Li,

Bai,

Yang

et al. 2023

Coatings

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Icing on transmission lines often causes potential electric damage in power systems. Superhydrophobic anodized Al conductors have been proposed to have good anti-icing properties. In this study, superhydrophobic anodized Al conductors with composite nanopore structures were prepared by a two-step anodization. The microstructure, hydrophobicity, and anti-icing properties of composite nanopore structures were compared and studied. The optimal preparation parameter was determined as a current density of 0.04375 A/cm2 and anodization time of 15 min. Compared with the bare substrate, the optimal anodized Al surface of the composite nanopore structures show excellent hydrophobic and anti-icing properties, including a contact angle of 173°, a contact angle hysteresis of 0.122°, an ice adhesion strength of 0.71 kPa, and a glaze icing weight of 0.1 g after the 8 h. Therefore, the prepared anodized Al surface of composite nanopore structures with good anti-icing properties has profound application potential for overhead transmission lines.

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Section: Wettability and Anti-icing Propertiesmentioning

confidence: 99%

Section: Wettability and Anti-icing Propertiesmentioning

confidence: 99%

Effects of the Second Anodization Parameters on the Hydrophobicity and Anti-Icing Properties of Al Surface with Composite Nanopore Structure

Li,

Bai,

Yang

et al. 2023

Coatings

Self Cite

View full text Add to dashboard Cite

show abstract

“…At present, two main types of anti-icing and de-icing techniques are widely studied by many researchers and engineers [3]: passive anti-icing and active de-icing methods. Active de-icing technologies include mechanical de-icing, salt de-icing, and high current melting [4]. Mechanical deicing is limited to the scope of construction, time-consuming, and labor-intensive.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies of anodized Al surface with composite nanopore structures to enhance the anti-icing properties of transmission lines

Li,

Jie,

Fan

et al. 2024

J. Phys.: Conf. Ser.

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Anti-icing is crucial for transmission conductors to avoid long-term power outages caused by severe icing climates. Here, superhydrophobic aluminum conductors with composite honeycomb nanopore structures were prepared by the twice-anodic oxidation method. Effects of the anodized current density on the surface morphology, structure, hydrophobicity, and anti-icing performance were experimentally studied. As the current density increases, the film thickness of the lower layer of a small nanopore structure increases, while the dissolution effect on the upper layer of a large nanopore structure is strengthened. Also, the composite nanopore structure exists in the damaged condition and has a rougher surface at the micron level. By comparing the surface wettability and anti-icing performance of all samples, the sample under the current density of 0.01875A/cm2 showed the optimal anti-icing properties, including a contact angle (CA) of 168°, the ice adhesion force of 4.87 kPa, and the longest frost formation time. The good anti-icing performance makes the anodized aluminum of composite nanopore structures a satisfactory candidate for improving their anti-icing behavior in the industry.

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Influence of different anodised nanoporous structures on the anti‐icing and electrical properties of transmission Al lines

Dai,

Yuan,

Xiao

et al. 2024

High Voltage

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Ice accumulation of overhead transmission lines can lead to serious damage to power systems. Superhydrophobic nanostructured Al conductors are proposed to replace the de‐icing or ice‐melting equipment for economic advantages, good anti‐icing properties and robust electrical performance. Anodisation under different direct current densities is adopted to fabricate two nanostructures on Al conductors, including the reticular and honeycomb‐like nanoporous structures. Compared to pure Al conductors, the anodised surface of honeycomb‐like nanoporous structures exhibits lower ice adhesion (3.82 kPa) and ice accumulation. Aluminium conductor steel reinforced treated in the proposed method has also been validated to exhibit a significant anti‐glaze icing property. Additionally, corona performance and line loss are experimentally measured and calculated to prove good electrical performance. The 0.27 A Al strand shows the highest corona inception voltage (27.86 kV) and the lowest AC resistance (4.65 Ω/km), which is attributed to the good dielectric property and heat dissipation. Therefore, the proposed anti‐icing transmission conductors show profound application potential for power systems.

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Experimental Studies of a Novel Anti-Icing Aluminum Conductor With Excellent Durability and Improved Electrical Performance

Cited by 3 publications

References 65 publications

Effects of the Second Anodization Parameters on the Hydrophobicity and Anti-Icing Properties of Al Surface with Composite Nanopore Structure

Effects of the Second Anodization Parameters on the Hydrophobicity and Anti-Icing Properties of Al Surface with Composite Nanopore Structure

Experimental studies of anodized Al surface with composite nanopore structures to enhance the anti-icing properties of transmission lines

Influence of different anodised nanoporous structures on the anti‐icing and electrical properties of transmission Al lines

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