干旱区生态环境知识资源中心(Arid): Effect of dew and rain on photovoltaic solar cell performances

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DOI	10.1016/j.solmat.2020.110908
	Effect of dew and rain on photovoltaic solar cell performances
	Simsek, Eylul; Williams, Megan J.; Pilon, Laurent
通讯作者	Pilon, L (corresponding author), Univ Calif Los Angeles, Mech & Aerosp Engn Dept, Los Angeles, CA 90095 USA.
来源期刊	SOLAR ENERGY MATERIALS AND SOLAR CELLS
ISSN	0927-0248
EISSN	1879-3398
出版年	2021
卷号	222
英文摘要	This study investigates experimentally the impact of droplets on the performance of solar photovoltaic (PV) cells due to dropwise condensation or rain falling on their cover. Dew formation occurs frequently in various climates including in semi-arid regions suitable to PV cell deployment. Then, droplets present on the cover of solar cells can negatively affect the cell power generation and efficiency due to optical effects. Here, semi-transparent glass covers were prepared without or with surface treatments and covered with acrylic droplets with contact angle ranging between 25 degrees and 77 degrees and surface area coverage between 19% and 49%. The current vs. voltage curves of commercial polycrystalline silicon solar cells with dry and droplet-covered glass covers were measured under simulated solar irradiation at incidence angle varying between 0 degrees and 85 degrees. For incident angles theta(i) <= 30 degrees, the droplets did not affect the performance of the PV cells. However, for incident angles theta(i) >= 30 degrees, the presence of droplets caused the maximum power and energy conversion efficiency of the PV cells to decrease significantly, particularly for large droplet contact angle and/or surface area coverage. Such performance degradation was attributed to the fact that the incident light was back-scattered through the droplets instead of being trapped by total internal reflection at the cover/air interface before being eventually absorbed by the solar cell. The study also shows that the hourly energy production of PV cells can decrease significantly with dew formation, based on actual weather conditions. These results highlight the importance of selecting durable hydrophilic solar cell cover.
英文关键词	Dropwise condensation Photovoltaic solar cell Reflectance Dew Rain Efficiency
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000609018500007
WOS关键词	DUST DEPOSITION ; GLASS ; COATINGS ; MODULES ; COVER ; CONDENSATION ; SILICON ; GROWTH ; PANELS
WOS类目	Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied
WOS研究方向	Energy & Fuels ; Materials Science ; Physics
来源机构	University of California, Los Angeles
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348214
作者单位	[Simsek, Eylul; Williams, Megan J.; Pilon, Laurent] Univ Calif Los Angeles, Mech & Aerosp Engn Dept, Los Angeles, CA 90095 USA; [Pilon, Laurent] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA; [Pilon, Laurent] Univ Calif Los Angeles, Inst Environm & Sustainabil, Los Angeles, CA 90095 USA
推荐引用方式 GB/T 7714	Simsek, Eylul,Williams, Megan J.,Pilon, Laurent. Effect of dew and rain on photovoltaic solar cell performances[J]. University of California, Los Angeles,2021,222.
APA	Simsek, Eylul,Williams, Megan J.,&Pilon, Laurent.(2021).Effect of dew and rain on photovoltaic solar cell performances.SOLAR ENERGY MATERIALS AND SOLAR CELLS,222.
MLA	Simsek, Eylul,et al."Effect of dew and rain on photovoltaic solar cell performances".SOLAR ENERGY MATERIALS AND SOLAR CELLS 222(2021).