Water Harvesting, Inc.

Generally, an air dehumidification system useful in dehumidifying gases to produce gases having low dew points. Specifically, an air dehumidifier and methods of making and using an air dehumidifier including a plurality of modules each containing a water capture material which absorbs water from a supply airflow in an adsorption mode and releases water vapor in a desorption mode, wherein one or more of the plurality of modules concurrently operate in the adsorption mode to reduce the dew point of the supply airflow as one or more of the plurality of modules operate in the desorption mode to regenerate the water capture material.

Provided herein are water harvesting systems, as well as methods using such systems for capturing water from surrounding air. The systems and methods use water capture materials to adsorb water from the air. For example, the water capture materials may be metal-organic-frameworks. The systems and methods desorb this water in the form of water vapor, and the Water vapor is condensed into liquid water and collected. The liquid water is suitable for use as drinking water.

Generally, an atmospheric water harvesting system useful in harvesting water from surrounding air. Specifically, a water harvester including a secondary heat exchanger operable in a first mode of the water harvester to absorb heat from the ambient environment to reduce the sensible heat penalty associated with increasing temperature to initiate desorption of water from a water capture material and in particular embodiments operable in a second mode of the water harvester to transfer heat from the desorbed water to the ambient environment.

Generally, an atmospheric water harvester useful in harvesting water from surrounding air. Specifically, a water harvester configured to reduce the sensible heat penalty associated with heating of a volume of air in the desorption mode and cooling of the volume of air in the condensation mode of the atmospheric water harvesting system, and methods of making the water harvester and methods of using the water harvester to collect water with a reduced sensible heat penalty contribution to total energy cost per liter of collected water.

Generally, an air dehumidification system useful in dehumidifying gases to produce gases having low dew points. Specifically, an air dehumidifier and methods of making and using an air dehumidifier including a plurality of modules each containing a water capture material which absorbs water from a supply airflow in an adsorption mode and releases water vapor in a desorption mode, wherein one or more of the plurality of modules concurrently operate in the adsorption mode to reduce the dew point of the supply airflow as one or more of the plurality of modules operate in the desorption mode to regenerate the water capture material.

Provided herein are water harvesting systems, as well as methods using such systems, for capturing water from surrounding air. The systems and methods use water capture materials to adsorb water from the air. For example, the water capture materials may be metal-organic-frameworks. The systems and methods desorb this water in the form of water vapor, and the water vapor is condensed into liquid water and collected. The liquid water is suitable for use as drinking water.

Water harvesting systems and methods of making and using such water harvesting systems, for capturing water from surrounding air using configurations that reduce overall energy costs and improves water harvesting cycle efficiency in the water harvesting system. In particular embodiments, the water harvesting system can be configured for dehumidification-humidification of air, and a method in the water harvesting system for dehumidification-humidification to control moisture level in the air conditioned by the water harvesting system. The systems and methods use sorbent materials, such as metal-organic frameworks, to adsorb water from the air. The systems and methods desorb this water in the form of water vapor, and the water vapor can be condensed into liquid water and collected to dehumidify air conditioned by the water harvesting system. The collected liquid water can be sprayed to humidify air conditioned by the water harvesting system.

Sorbent compositions that are useful in the adsorption of water from the atmosphere. In particular embodiments, the sorbent compositions can be disposed alone as a sorbent layer or can be disposed as a sorbent layer on a substrate material, which can be reconfigured as a plurality of structural components that are useful in the assembly water capture modules disposed within an adsorption/desorption structure of a water harvester.

Generally, an atmospheric water harvester useful in harvesting water from surrounding air. Specifically, a water harvester configured to reduce the sensible heat penalty associated with heating of a volume of air in the desorption mode and cooling of the volume of air in the condensation mode of the atmospheric water harvesting system, and methods of making the water harvester and methods of using the water harvester to collect water with a reduced sensible heat penalty contribution to total energy cost per liter of collected water.

Provided herein are refrigerator systems integrated with an atmospheric water harvesting unit, as well as methods using such systems. The atmospheric water harvesting unit serves as a water supply for the refrigerator system by capturing water from surrounding air. For example, the water capture materials may be metal organic frameworks. The systems and methods desorb this water in the form of water vapor, and the water vapor is condensed into liquid water and collected. The liquid water is suitable for use as drinking water.