Mitigation of Dust Impact on Solar Collectors by Water-Free Cleaning With Transparent Electrodynamic Films: Progress and Challenges
| Autor: | Sean M. Garner, Annie Bernard, Jeremy W. Stark, Julius Yellowhair, Yujie Gao, Hung Yi Lin, Alecia C. Griffin, Nitin Joglekar, Mark N. Horenstein, Alexis H. Lloyd, Arash Sayyah, Malay K. Mazumder, Ricci La Centra, Ryan S. Eriksen |
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| Rok vydání: | 2017 |
| Předmět: |
business.industry
020209 energy Photovoltaic system 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Solar mirror Durability Engineering physics Water consumption Electronic Optical and Magnetic Materials law.invention Optics Fresh water law Lamination Concentrated solar power 0202 electrical engineering electronic engineering information engineering Environmental science Specular reflection Electrical and Electronic Engineering 0210 nano-technology business |
| Zdroj: | IEEE Journal of Photovoltaics. 7:1342-1353 |
| ISSN: | 2156-3403 2156-3381 |
| DOI: | 10.1109/jphotov.2017.2721462 |
| Popis: | Energy-yield loss caused by soiling of photovoltaic modules and concentrated solar power (CSP) mirrors in utility-scale power plants installed in semiarid lands and deserts would result in unsustainable demands for fresh water needed for cleaning. This paper reviews the progress of the electrodynamic screen (EDS) film technology for frequent water-free cleaning with low-energy requirements. Results presented here, based on laboratory-scale EDS-film-laminated solar panel cleaning, show that the output power can be restored higher than 95% of the initial power under clean conditions. For solar mirrors, the specular reflection efficiency can be maintained over 90% ensuring high efficiency of the CSP plants. Operation of the EDS film for maintaining high optical efficiency of solar collectors requires less than 0.2 Wh/m ${}^2$ /cleaning cycle. Principles, optical modeling, construction, lamination of the EDS films on modules and mirrors, and experimental data showing optical efficiency restoration without water consumption are presented. Current challenges in developing electrodes that would meet optical and conduction properties, low-cost production, and meeting long-term outdoor durability of the EDS films are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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