Passive interfacial photothermal evaporation and sky radiative cooling assisted all-day freshwater harvesting: System design, experiment study, and performance evaluation

Chen, Ziying; Dong, Mingyu; Wang, Cunhai

doi:10.1016/j.apenergy.2023.122254

Cited by 15 publications

(2 citation statements)

References 42 publications

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“…where E carbon (kgCO 2 /m 2 ) is the space-conditioned carbon emissions; E ele (kWh/m 2 ) is the space-conditioned energy; and η is the average emission coefficient accounting for the power grid of the city, which is presented in Table 5 [40]. To further indicate the differences in carbon emissions for buildings with different roofs, annual space-conditioned carbon emissions are also given in Table 6.…”

Section: Building Carbon Reduction Of Applying Tarcmentioning

confidence: 99%

Building Energy Efficiency Enhancement through Thermochromic Powder-Based Temperature-Adaptive Radiative Cooling Roofs

Song,

Zhang,

Xiao

et al. 2024

Buildings

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This paper proposes a temperature-adaptive radiative cooling (TARC) coating with simple preparation, cost effectiveness, and large-scale application based on a thermochromic powder. To determine the energy efficiency of the proposed TARC coating, the heat transfer on the surface of the TARC coating was analyzed. Then, a typical two-story residential building with a roof area of 258.43 m2 was modeled using EnergyPlus. Finally, the energy-saving potential and carbon emission reduction resulting from the application of the proposed TARC roof in buildings under different climates in China were discussed. The results showed that the average solar reflectivity under visible light wavelengths (0.38–0.78 μm) decreases from 0.71 to 0.37 when the TARC coating changes from cooling mode to heating mode. Furthermore, energy consumption can be reduced by approximately 17.8–43.0 MJ/m2 and 2.0–32.6 MJ/m2 for buildings with TARC roofs compared to those with asphalt shingle roofs and passive daytime radiative cooling (PDRC) roofs, respectively. This also leads to reductions in carbon emissions of 9.4–38.0 kgCO2/m2 and 1.0–28.9 kgCO2/m2 for the buildings located in the selected cities. To enhance building energy efficiency, TARC roofs and PDRC roofs are more suitable for use on buildings located in zones with high heating demands and high cooling demands, respectively.

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Section: Building Carbon Reduction Of Applying Tarcmentioning

confidence: 99%

Building Energy Efficiency Enhancement through Thermochromic Powder-Based Temperature-Adaptive Radiative Cooling Roofs

Song,

Zhang,

Xiao

et al. 2024

Buildings

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“…Outdoor experiments at ETH (Zurich, Switzerland) in August showed that the mean dew mass flux achieved 50 g/m 2 /hour (close to the theoretical limit of such systems) with a RH higher than 90% and a mean solar irradiation of over 200 W/m 2 . Additionally, the integration of solar interfacial evaporation with passive radiative cooling represents a viable strategic approach to realizing all-day freshwater collection [137][138][139]. Xu et al [140] designed a dual-function film combining daytime solar thermal desalination and nighttime radiative cooling dew collection by applying carbon nanotubes (solar absorption of ~95%) on a flexible PDMS substrate with high IR emissivity (~90% in 8-13 µm range).…”

Section: Dew Water Harvestingmentioning

confidence: 99%

Advancing Sustainable Development: Broad Applications of Passive Radiative Cooling

Liang,

Bai,

Lin

et al. 2024

Sustainability

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With the increasing demand for energy worldwide, researchers from different fields have been striving to improve the sustainability and proper utilization of energy resources. Passive radiative cooling, as a natural energy transport method, can achieve cooling without additional external energy input. This review provides a comprehensive examination of passive radiative cooling, including its fundamental theories and latest development. A particular emphasis is placed on the diverse range of fields where passive radiative cooling has been applied, notably including but not limited to construction and architecture. The current state of applications, potential challenges that may arise with wider adaption and promising research directions for each field are thoroughly discussed. This review emphasizes the extensive potential and practical viability of passive radiative cooling in diverse applications and identifies pressing challenges and future research directions aimed at scaling up real-world implementation.

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Waste heat-driven water generator with optimized multi-cycle strategy for high water yield

Deng,

Poredoš,

et al. 2024

Applied Energy

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Passive interfacial photothermal evaporation and sky radiative cooling assisted all-day freshwater harvesting: System design, experiment study, and performance evaluation

Cited by 15 publications

References 42 publications

Building Energy Efficiency Enhancement through Thermochromic Powder-Based Temperature-Adaptive Radiative Cooling Roofs

Building Energy Efficiency Enhancement through Thermochromic Powder-Based Temperature-Adaptive Radiative Cooling Roofs

Advancing Sustainable Development: Broad Applications of Passive Radiative Cooling

Waste heat-driven water generator with optimized multi-cycle strategy for high water yield

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