Abstract
Abstract
This addendum introduces a critical architectural extension of the ALLFROMAIR® system: the integration of passive radiative cooling directly into the electrode structure. Analysis of the original wire-forest configuration demonstrated that the Modified Kelvin-Thomson (MKT) effect at operational field strengths (E ≈ 1.67 MV/m) produces a vapour-pressure reduction of approximately 0.0007% — insufficient as the sole condensation driving force in sub-saturated air. The solution presented here is to supply a temperature gradient through passive infrared radiative cooling of the electrode surface, requiring no moving parts and consuming no electrical energy.
Calculations demonstrate that a SiO₂/HfO₂ selective radiative coating on an aluminium substrate achieves 11–22°C surface sub-cooling under clear-night conditions. Combined with the wire-forest geometry and MKT nucleation enhancement, the hybrid system yields a realistic water output of 2.8–5.5 L/m²/day across 9 of the 10 climate classes analysed. Desert daytime conditions represent the sole exception. The Specific Energy Consumption (SEC) remains 0.04–0.05 kWh/m³ under active EC-fan operation, and approaches zero under wind-driven passive operation.
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Recommended Citation
Lius, Vesa Olavi, "ADDENDUM NO. 4: RADIATIVE HYBRID COOLING", Technical Disclosure Commons, (March 10, 2026)
https://www.tdcommons.org/dpubs_series/9488