-
公开(公告)号：US20190153704A1
公开(公告)日：2019-05-23
申请号：US16313173
申请日：2017-06-26
Inventor： Ben GIDO , David BRODAY , Eran FRIEDLER
Abstract: An atmospheric moisture harvesting system, in which water vapor is separated from the air using a liquid desiccant subsystem. The moisture charged liquid desiccant enters a desorber and condensation system, where the moisture is extracted. Cooling and condensation are performed on the extracted water vapor only, thereby saving the energy for cooling air containing the water vapor, as is done in direct cooling systems. The system thus operates as a single stage vapor separation system since the vapor concentration remains in the liquid desiccant which is circulated to the separation and condensation subsystems without air laden with the moisture. Low grade or solar heat can be used as the energy source for the vapor desorption. A heat exchanger utilizes unwanted heat from regenerated desiccant to heat up charged desiccant entering the regenerating stage. The system has substantial energy savings over prior art systems using direct cooling of air.
-
公开(公告)号：US20210285190A1
公开(公告)日：2021-09-16
申请号：US17332546
申请日：2021-05-27
Inventor： Ben GIDO , David BRODAY , Eran FRIEDLER
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.
-
Search Results
2
records
(took 0.013 seconds)
