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DOI10.1016/j.solener.2017.07.064
Simulation of microscale particle interactions for optimization of an electrodynamic dust shield to clean desert dust from solar panels
Chesnutt, Jennifer K. W.1; Ashkanani, Husain2,4; Guo, Bing3; Wu, Chang-Yu1
通讯作者Chesnutt, Jennifer K. W.
来源期刊SOLAR ENERGY
ISSN0038-092X
出版年2017
卷号155页码:1197-1207
英文摘要

A largely neglected aspect necessary to prevent energy losses of photovoltaic (PV) panels is efficient and cost-effective mitigation of dust soiling. A potential solution is an electrodynamic dust shield (EDS) to lift and transport dust off the PV panel via electrodynamic waves generated by electrodes on the panel surface. Accordingly, the objective of this research was to determine the effects of EDS parameters on the optimal cleaning efficiency of PV panels soiled by desert dust. A discrete element method was used to computationally simulate the transport, collision, and adhesion of charged particles, representative of dust in Doha, Qatar, subject to two-phase waves on an inclined EDS. Results showed that under given conditions, the optimal distance between electrodes (pitch) was 14 mm, which resulted from a balance between increasing pitch that aided dust transport and concomitant decreasing electric field strength that hindered transport. Optimal voltage was 2.8 kV(p-p), while particles remained adhered to the surface at small voltages (0.7 kV(p-p)) but were repelled and attracted by the same electrode at high voltages (11.8 kV(p-p)). Dust transport distance per 10 cycles generally decreased as cycle frequency increased from 0.5 to 10 Hz; however, transport distance per time was largest with an intermediate frequency of 1 Hz. Our study revealed various ways in which individual dust particles were repelled and attracted by electrodes under different conditions that produced different transport patterns, which can be used to improve the efficiency of dust mitigation for PV panels. (C) 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.orgilicenses/by-nc-nd/4.0/).


英文关键词Dust mitigation Particulate flow Discrete element method Photovoltaic
类型Article
语种英语
国家USA ; Qatar
收录类别SCI-E
WOS记录号WOS:000414819900043
WOS关键词LUNAR DUST ; REMOVAL ; MITIGATION ; SCREEN ; TRAJECTORIES ; PERFORMANCE ; TECHNOLOGY ; DEPOSITION ; TRANSPORT ; MECHANISM
WOS类目Energy & Fuels
WOS研究方向Energy & Fuels
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/202503
作者单位1.Univ Florida, Dept Environm Engn Sci, Engn Sch Sustainable Infrastruct & Environm, Gainesville, FL 32611 USA;
2.Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA;
3.Texas A&M Univ Qatar, Mech Engn Program, Doha, Qatar;
4.Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA
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Chesnutt, Jennifer K. W.,Ashkanani, Husain,Guo, Bing,et al. Simulation of microscale particle interactions for optimization of an electrodynamic dust shield to clean desert dust from solar panels[J],2017,155:1197-1207.
APA Chesnutt, Jennifer K. W.,Ashkanani, Husain,Guo, Bing,&Wu, Chang-Yu.(2017).Simulation of microscale particle interactions for optimization of an electrodynamic dust shield to clean desert dust from solar panels.SOLAR ENERGY,155,1197-1207.
MLA Chesnutt, Jennifer K. W.,et al."Simulation of microscale particle interactions for optimization of an electrodynamic dust shield to clean desert dust from solar panels".SOLAR ENERGY 155(2017):1197-1207.
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