Abstract

AWH‑Ω4.0 is a builder‑ready, research‑mode atmospheric water engine designed for hyper‑arid climates (3–15% RH). It uses metal–organic framework (MOF) sorbents (MOF‑303, MOF‑801, and future composites) to adsorb water vapor from extremely dry air, then regenerates the sorbent using solar thermal energy and a thermal battery, routing desorbed vapor through a closed condenser loop to produce liquid water.

The system is explicitly engineered as an open‑hardware research platform, not a commercial product. It defines:

  • Full geometry and dimensions for sorbent cartridges, intake, condenser, and thermal subsystems.

  • Exact MOF mass per cartridge and structured contactors to minimize pressure drop.

  • Nighttime adsorption / daytime regeneration operating modes.

  • Multi‑cartridge cycling (A/B adsorption, C regeneration, D cooling/condensation) for quasi‑continuous operation.

  • Radiative sky cooling to increase effective RH at night.

  • Solar thermal collector + thermal battery for regeneration.

  • Counterflow heat recuperator to reduce solar energy per liter of water.

  • Closed desorption–condensation loop with hydrophilic fins and defined heat rejection.

  • Dust pre‑separation (cyclone), HEPA filtration, optional electrostatic grid.

  • Water‑quality polishing (particulate, carbon, optional UV, optional nano‑Ag mesh) and storage.

  • Instrumentation and test protocol with performance expressed as L/kg‑MOF/day at defined RH and temperature.

Optional modules like ARPN‑2.0 flow‑conditioning and graphene‑oxide photothermal coatings are included only as experimental subsystems; they are not claimed to increase water yield until measured.

This disclosure is intended so that independent engineers can build, instrument, test, and improve AWH‑Ω4.0, and publish results under open‑hardware and open‑science principles.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

Download

Share

COinS