rexresearch
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David BRODAY / Eran Friedler
Technion Air Well
https://www.youtube.com/watch?v=8fQRnM4-4W4
Producing Water from Air New Technion Moisture Harvesting System
Technion-Israel Institute of Technology Civil and Environmental Engineering Profs. David Broday and Eran Friedler have developed a standalone moisture harvesting system that produces water from the air, even in desert regions. The innovative system is technologically superior to existing systems and is capable of providing a constant supply of water, especially to small and isolated communities without the need for an external power source.
https://rumble.com/v4zjfqw-technology-of-extracting-water-from-air-david-broday.html
Technology of Extracting Water From Air / David Broday // Creative Society
https://israel21c.org/israeli-scientists-generate-water-from-air-even-in-the-desert/
Israeli scientists generate water from air, even in the desert
Standalone system could prove particularly relevant for small and isolated communities that are located far from water sources.
Drinking water shortages is one of the big problems facing humanity in the coming years: according to the World Health Organization, by 2025 half of the world’s population will be living in water-stressed areas.
With this arid forecast in mind, researchers from the Technion – Israel Institute of Technology recently developed a prototype system that produces water from the air. Unlike existing water-from-air generators, the Technion system is based on a two-stage cyclic process. First, it separates moisture from the air using a highly concentrated saline solution, and then it condenses the vapor under sub-atmospheric pressure conditions.
“Our technology turns water into a commodity as it enables water to be produced anywhere in the world, without being dependent upon existing sources of liquid water,” explained the Technion’s Prof. David Broday, who developed the prototype together with colleague Prof. Eran Friedler.
Currently only a prototype, the researchers are working on turning the system into a commercial product that could prove particularly relevant for small and isolated communities that are located far from water sources.
“In addition to being an essential component of life, water also influences other important aspects, among them individual and community health and even the empowerment of women. In many places, young girls do not attend school because they are busy providing water for the family. Even as adults, women devote hours to transporting water,” Friedler said.
“Furthermore, access to water is a central factor in bloody confrontations in arid regions nowadays and constitutes one of the foremost motives for immigration,” he added.
US11525246 -- Liquid desiccant vapor separation system
Abstract -- A system for extracting water from the atmosphere is disclosed. The system has a vapor absorber vessel, an absorption cycle pump, a flash drum vapor desorber, a vapor condenser, an output conduit, and a heat exchanger. The vessel has an atmospheric air inlet and outlet ports, at least one liquid desiccant inlet port, at least two liquid desiccant outlet ports, and a surface on which the liquid desiccant flows between the at least one liquid desiccant inlet port and the at least two liquid desiccant outlet ports. The pump is adapted to circulate a first portion of the liquid desiccant from a first of the outlet ports to the at least one inlet port. The desorber is adapted to receive a second portion of the liquid desiccant from a second of the outlet ports, after passage through an expansion valve, the desorber incorporates a heat exchanger for supplying heat to liquid desiccant therein. The condenser receives desorbed vapor from the desorber, the condenser incorporates condensation surfaces adapted to be cooled to a temperature of less than 20° C., for enabling the condensing of the desorbed vapor to water. The output conduit collects water condensed in the condenser. The heat exchanger is located such that it receives desorbed heated liquid desiccant from the desorber and transfers part of its sensible heat to vapor-charged liquid desiccant passing from the vessel to the desorber.