Atmospheric water harvesting systems

The atmospheric water harvesting system with an adsorbent heat exchanger and MOF material addresses the limitations of existing AWH technologies by enabling continuous daily cycling and high water yield through efficient energy use, improving reliability and efficiency across diverse climates.

WO2025171252A1 Publication Date: 2025-08-14UNIV OF UTAH RES FOUND
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Patent Information

Application Number
PCT/US2025/015002
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-02-06
Filing Date
2025-02-07
Publication Date
2025-08-14

AI Technical Summary

Technical Problem

Existing atmospheric water harvesting (AWH) technologies face challenges in achieving high reliability, water yield, and efficiency across a wide range of atmospheric conditions, particularly due to high energy consumption and limitations in sorbent materials, which restrict their application in arid climates.

Method used

An atmospheric water harvesting system utilizing an adsorbent heat exchanger with a metal-organic framework (MOF) adsorbent material, coupled to a heat pipe and a heat block, which uses a high-energy density fuel combustion source for heating, enabling continuous daily cycling and reducing system footprint.

Benefits of technology

The system achieves higher water production and efficiency by allowing multiple daily cycles with reduced energy consumption, enhancing water yield and reliability in various atmospheric conditions.

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Abstract

Atmospheric water harvesting systems, including an adsorbent heat exchanger that includes an adsorber structure. The adsorber structure comprises, in some embodiments, an array of fins coupled to one or more heat pipes, where an adsorbent material is included on the fins. In some embodiments, the system passes ambient air across the adsorber structure to adsorb water, then apples heat to the adsorber structure via a heat source and heat block coupled to the heat pipes to desorb the water. The desorbed water is passed through a condenser to capture the liquid water.
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