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    Photovoltaic panel cooling by atmospheric water sorption–evaporation cycle

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    Name:
    Photovoltaic panel cooling by atmospheric water sorption–evaporation cycle.pdf
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    1.357Mb
    Format:
    PDF
    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Li, Renyuan cc
    Shi, Yusuf cc
    Wu, Mengchun cc
    Hong, Seunghyun cc
    Wang, Peng cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Nanotechnology Lab
    Environmental Science and Engineering
    Environmental Science and Engineering Program
    Water Desalination and Reuse Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2020-05-11
    Online Publication Date
    2020-05-11
    Print Publication Date
    2020-08
    Embargo End Date
    2020-11-11
    Submitted Date
    2019-01-11
    Permanent link to this record
    http://hdl.handle.net/10754/662817
    
    Metadata
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    Abstract
    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.
    Citation
    Li, R., Shi, Y., Wu, M., Hong, S., & Wang, P. (2020). Photovoltaic panel cooling by atmospheric water sorption–evaporation cycle. Nature Sustainability. doi:10.1038/s41893-020-0535-4
    Sponsors
    This work was supported by the King Abdullah University of Science and Technology (KAUST) Center Competitive Fund (CCF), awarded to the Water Desalination and Reuse Center (WDRC).
    Publisher
    Springer Nature
    Journal
    Nature Sustainability
    DOI
    10.1038/s41893-020-0535-4
    Additional Links
    http://www.nature.com/articles/s41893-020-0535-4
    ae974a485f413a2113503eed53cd6c53
    10.1038/s41893-020-0535-4
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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