气候变化领域集成服务门户(CCPortal): Self-Powered Autonomous Electrostatic Dust Removal for Solar Panels by an Electret Generator

CCPortal

DOI	10.1002/advs.202401689
	Self-Powered Autonomous Electrostatic Dust Removal for Solar Panels by an Electret Generator
	Ding, Rong; Cao, Zeyuan; Teng, Junchi; Cao, Yujia; Qian, Xiaoyu; Yue, Wei; Yuan, Xiangzhu; Deng, Kang; Wu, Zibo; Li, Shuiqing; Lin, Liwei; Ye, Xiongying
发表日期	2024
EISSN	2198-3844
英文摘要	Solar panels often suffer from dust accumulation, significantly reducing their output, especially in desert regions where many of the world's largest solar plants are located. Here, an autonomous dust removal system for solar panels, powered by a wind-driven rotary electret generator is proposed. The generator applies a high voltage between one solar panel's output electrode and an upper mesh electrode to generate a strong electrostatic field. It is discovered that dust particles on the insulative glass cover of the panel can be charged under the high electrical field, assisted by adsorbed water, even in low-humidity environments. The charged particles are subsequently repelled from the solar panel with the significant Coulomb force. Two panels covered with sand dust are cleaned in only 6.6 min by a 15 cm diameter rotary electret generator at 1.6 m s-1 wind speed. Experimental results manifest that the system can work effectively in a wide range of environmental conditions, and doesn't impact the panel performance for long-term operation. This autonomous system, with its high dust removal efficiency, simplicity, and low cost, holds great potential in practical applications. An autonomous dust removal system for solar panels, powered by a wind-driven rotary electret generator is proposed. The system has the advantages of low cost, simple structure, and excellent dust removal performances, while it has minimum interferences to the panel performance. With significant potential for addressing dust accumulation problems on solar panels in desert regions, it offers a promising solution. image
英文关键词	dust removal; electret generator; electrostatic; solar panel; water adsorption
语种	英语
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001214254200001
来源期刊	ADVANCED SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300646
作者单位	Tsinghua University; Tsinghua University; University of California System; University of California Berkeley; University of California System; University of California Berkeley
推荐引用方式 GB/T 7714	Ding, Rong,Cao, Zeyuan,Teng, Junchi,et al. Self-Powered Autonomous Electrostatic Dust Removal for Solar Panels by an Electret Generator[J],2024.
APA	Ding, Rong.,Cao, Zeyuan.,Teng, Junchi.,Cao, Yujia.,Qian, Xiaoyu.,...&Ye, Xiongying.(2024).Self-Powered Autonomous Electrostatic Dust Removal for Solar Panels by an Electret Generator.ADVANCED SCIENCE.
MLA	Ding, Rong,et al."Self-Powered Autonomous Electrostatic Dust Removal for Solar Panels by an Electret Generator".ADVANCED SCIENCE (2024).