Journal
ENERGY
Volume 165, Issue -, Pages 387-395Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2018.09.106
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Funding
- Key Program of National Natural Science Foundation of China [51336004]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51521004]
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Air water harvesting (AWH) is a prospective way to make people live in extreme conditions, such as arid desert and remote islands. However, the refrigeration-based AWH suffers from ineffectiveness at low humidity, while the current sorption-based solar driven AWH has low area specific water production. To provide affordable water, it is essential to design universal and scalable systems to effectively capture moisture from air year-round with less energy consumption at different locations. Here we develop a theoretical framework and demonstrate a scalable prototype on the sorption-based AWH. The prototype adopts a temperature-insensitive and RH-broadband desiccant, achieving a large water harvesting capacity in different regions. Scalable modular sorbers with sinusoidal honeycomb structure are used. The prototype harvests ca. 38.5 kg fresh water per day, consuming ca.7.2 MJ heat/kg fresh water. The performance analyses show that our device can harvest freshwater universally, which is a promising solution to relieve the thirsty world. (C) 2018 Elsevier Ltd. All rights reserved.
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