气候变化领域集成服务门户(CCPortal): Photovoltaic panel cooling by atmospheric water sorption

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DOI	10.1038/s41893-020-0535-4
	Photovoltaic panel cooling by atmospheric water sorption–evaporation cycle
	Li R.; Shi Y.; Wu M.; Hong S.; Wang P.
发表日期	2020
ISSN	2398-9629
起始页码	636
结束页码	643
卷号	3 期号:8
英文摘要	More than 600 GW of photovoltaic panels are currently installed worldwide, with the predicted total capacity increasing very rapidly every year. One essential issue in photovoltaic conversion is the massive heat generation of photovoltaic panels under sunlight, which represents 75–96% of the total absorbed solar energy and thus greatly increases the temperature and decreases the energy efficiency and lifetime of photovoltaic panels. In this report we demonstrate a new and versatile photovoltaic panel cooling strategy that employs a sorption-based atmospheric water harvester as an effective cooling component. The atmospheric water harvester photovoltaic cooling system provides an average cooling power of 295 W m–2 and lowers the temperature of a photovoltaic panel by at least 10 °C under 1.0 kW m–2 solar irradiation in laboratory conditions. It delivered a 13–19% increase in electricity generation in a commercial photovoltaic panel in outdoor field tests conducted in the winter and summer in Saudi Arabia. The atmospheric water harvester based photovoltaic panel cooling strategy has little geographical constraint in terms of its application and has the potential to improve the electricity production of existing and future photovoltaic plants, which can be directly translated into less CO2 emission or less land occupation by photovoltaic panels. As solar power is taking centre stage in the global fight against climate change, atmospheric water harvester based cooling represents an important step toward sustainability. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Climate change; Electric power generation; Energy efficiency; Harvesters; Photovoltaic cells; Solar energy; Atmospheric water; Cooling components; Electricity generation; Electricity production; Laboratory conditions; Photovoltaic conversion; Photovoltaic panels; PhotoVoltaic plant; Solar power generation
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163302
作者单位	Water Desalination and Reuse Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
推荐引用方式 GB/T 7714	Li R.,Shi Y.,Wu M.,等. Photovoltaic panel cooling by atmospheric water sorption–evaporation cycle[J],2020,3(8).
APA	Li R.,Shi Y.,Wu M.,Hong S.,&Wang P..(2020).Photovoltaic panel cooling by atmospheric water sorption–evaporation cycle.Nature Sustainability,3(8).
MLA	Li R.,et al."Photovoltaic panel cooling by atmospheric water sorption–evaporation cycle".Nature Sustainability 3.8(2020).