Performance analyses and optimizations of desiccant wheel-assisted atmospheric water harvesting systems based on ideal thermodynamic cycles

2021 ◽  
Vol 245 ◽  
pp. 114540
Author(s):  
Rang Tu ◽  
Mengdan Liu ◽  
Siqi Wang ◽  
Xu Yang
Keyword(s):  
Water Harvesting ◽  
Atmospheric Water ◽  
Desiccant Wheel ◽  
Thermodynamic Cycles ◽  
Harvesting Systems ◽  
Performance Analyses

Modeling humid air condensation in waste natural gas-powered atmospheric water harvesting systems

2017 ◽  
Vol 118 ◽  
pp. 224-232 ◽  
Author(s):  
Onur Ozkan ◽  
Enakshi D. Wikramanayake ◽  
Vaibhav Bahadur
Keyword(s):  
Natural Gas ◽  
Water Harvesting ◽  
Atmospheric Water ◽  
Humid Air ◽  
Harvesting Systems

INTERFACES BETWEEN ATMOSPHERIC WATER HARVESTING AND SOLAR ENERGY: EVIDENCES FROM A BIBLIOMETRIC STUDY

2021 ◽  
Author(s):  
Ana Carolina Lamas da Silva ◽  
Elias Rocha Gonçalves Junior ◽  
Virgínia Siqueira Gonçalves
Keyword(s):  
Solar Energy ◽  
Bibliometric Study ◽  
Water Harvesting ◽  
Atmospheric Water

scholarly journals Exploiting radiative cooling for uninterrupted 24-hour water harvesting from the atmosphere

2021 ◽  
Vol 7 (26) ◽  
pp. eabf3978
Author(s):  
Iwan Haechler ◽  
Hyunchul Park ◽  
Gabriel Schnoering ◽  
Tobias Gulich ◽  
Mathieu Rohner ◽  
...  
Keyword(s):  
Radiative Heat ◽  
Outer Space ◽  
Continuous Production ◽  
Solar Irradiation ◽  
Cooling Power ◽  
Water Harvesting ◽  
Atmospheric Water ◽  
Promising Alternative ◽  
Mass Fluxes ◽  
Power Enhancement

Atmospheric water vapor is ubiquitous and represents a promising alternative to address global clean water scarcity. Sustainably harvesting this resource requires energy neutrality, continuous production, and facility of use. However, fully passive and uninterrupted 24-hour atmospheric water harvesting remains a challenge. Here, we demonstrate a rationally designed system that synergistically combines radiative shielding and cooling—dissipating the latent heat of condensation radiatively to outer space—with a fully passive superhydrophobic condensate harvester, working with a coalescence-induced water removal mechanism. A rationally designed shield, accounting for the atmospheric radiative heat, facilitates daytime atmospheric water harvesting under solar irradiation at realistic levels of relative humidity. The remarkable cooling power enhancement enables dew mass fluxes up to 50 g m−2 hour−1, close to the ultimate capabilities of such systems. Our results demonstrate that the yield of related technologies can be at least doubled, while cooling and collection remain passive, thereby substantially advancing the state of the art.

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