Influence of Hydrophobic Coating on Ice Accretion on Aluminum Conductor
Ice accretion on high voltage power lines is a severe problem for power network and it can cause insulator flashover, wire breakage and tower falling down. In order to restrain ice accretion on the transmission lines and decrease these accidents, the icing accretion process on different hydrophobic aluminum conductors was investigated in low temperature in the paper. The results show that the hydrophobic coating can mitigate ice accretion at the initial spraying time, but it can not restrain the ice formation on the aluminum conductor surface. However, a superhydrophobic coating can largely prevent ice formation on the aluminum conductor surface except a few ice growth spots even though being sprayed for 90 min. The larger water contact angle and small water sliding angle of the superhydrophobic coating result the supercooled water droplets can not to be adhered stably, which restrained ice accretion on the aluminum conductor. The hydrophobic conductor have a water contact angle larger than the common aluminum conductor, which delay the formation time of a intact layer of ice compared with the common aluminum conductor. But its larger water sliding angle results the supercooled water droplet to be adhered and frozen on the surface easily, which lead to the intact layer ice formation.
Wang Fochi Zhao Yuqian Li Chengrong Zhou You Lv Yuzhen
Beijing area Key Laboratory of High Voltage & EMC Hebei Provincial Key Laboratory of Power Transmiss Datang Baoding Power Plant, Baoding Hebei Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electr
国际会议
The 14th International Workshop on Atmospheric Icing of Structures(第十四届结构物大气覆冰国际研讨会 IWAIS 2011)
重庆
英文
121
2011-05-08（万方平台首次上网日期，不代表论文的发表时间）