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US 2022/0064913 A1Published application
Multi-stage adsorption-based atmospheric water harvesting
AssigneeMassachusetts Institute of Technology
InventorsEvelyn Wang, Alina LaPotin, Yang Zhong
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Abstract
A water-harvesting system can operate with a material that can take up and release water with minimum energy requirements and powered by low-grade energy sources, such as sunlight, in order to potentially allow its deployment into households, especially those located in sunny regions. A water-harvesting method and system can include multiple layers of adsorptive material.
Claims21
A water-harvesting system comprising:
- a heat absorber;
- a condenser opposite the solar absorber;
- and
- two or more sorbent layers, each having a condenser surface, disposed between the solar absorber and the condenser.
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A method of water-harvesting comprising:
- absorbing water from ambient atmosphere into a sorbent material;
- applying energy to an energy absorber to desorb vapor, wherein two or more sorbent layers each including the sorbent material and a condenser surface are disposed between the energy absorber and a condenser;
- and
- collecting water with the condenser.
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Dependencies are inferred from the claim text.