In a world where we have not so many fresh water resources, and an overflowing everyday waste, a vertical double-sided atmospheric water harvesting system that is based on the principals of passive radiative cooling, is a solution to the water scarcity.
But, if this system is made out of waste materials, like plastics and aluminum, it is a sustainable solution that solves two problems at once: the water scarcity, and the waste pollution.
Unlike active cooling systems, this technology is completely energy-free. Because it operates entirely on the physcial properties of its components, which makes it off-grid, low-maintenance, and low-cost system for anyone to build and use: to recycle their everyday waste, and to harness their own water.
Plastics can naturally cool themselves below the ambient air temperature due to their ability to passively emit mid-infrared radiation that can escape to the cold outer space through the atmopsheric transparency window. If this plastic, acting as the emitter in the system, cooled itself below the dew point in a very humid weather, it is only natural for the humidity to condense on this cold surface, and transform from vapor water to liquid water. This is how we collect atmospheric water.
This project can be used for its basic purposes: the water production, and the waste recycling. Or, it can be used for much complicated applications, like cooling the solar cells to increase their effeciency, or to self-clean them. Also, the collected water can be used to produce hydrogen through electrolysis processes as a part of our transition to clean energy, or it can be used for microgrids.
This is a sustainable, energy-free, and off-grid solution that empowers individuals to reclaim their own water resources from their waste.