Journal
MATERIALS TODAY ENERGY
Volume 21, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mtener.2021.100776
Keywords
Passive cooling; Thermal management; Solar photovoltaics; Solar thermal; Photovoltaic thermal
Funding
- National Natural Science Foundation of China [51976124]
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The integration of radiative sky cooling with solar energy harvesting systems into a combined solar energy-radiative cooling (SE-RC) system provides multifunctionality and increased energy gains per unit area. However, challenges such as low cooling power and stringent spectral requirements still need to be addressed for further development of these systems.
With developments in material science and thermal engineering, radiative sky cooling has received renewed interest as it provides passive cooling energy during both day and night. Similarly, solar energy harvesting systems, such as photovoltaics, photovoltaic/thermal, and thermal collectors, have been used extensively to meet global energy demands. Integrating the individual systems into the combined solar energy-radiative cooling (SE-RC) system provides multifunctionality, increased operating time, and higher energy gains per unit area. From initial studies to the latest developments, this review has analyzed such integrated systems considering their module configurations, design techniques, applied materials, operating conditions, and performance results. Despite their impressive potential, these sys-tems encounter challenges of low cooling power, stringent spectral requirements, and varying energy supply and demand. Recent progress made to address such challenges, potential solutions, and future research directions have also been discussed. Considering the global energy crisis and environmental issues, the cooling, heating, and electricity generated by SE-RC systems will be used in diverse appli-cations like buildings and vehicles. Therefore, it is anticipated that this review will serve as a guide for integrating solar energy and radiative cooling, and will help identify patterns that are not evident from single studies so to further promote research in this domain. (C) 2021 Elsevier Ltd. All rights reserved.
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