Abstract
Abstract
Addendum 4 analysed ALLFROMAIR® system performance under clear-sky conditions using passive radiative cooling. A critical operational extension is fog — a phenomenon occurring several hours per day across a wide range of climates, including coastal deserts. During fog periods, the wire-forest electrode structure already present in the system functions directly as a high-efficiency fog collector, while the DEP field actively directs droplets toward the electrode surface and vibration-desorption ensures continuous drainage.
Calculations show that ALLFROMAIR® v2 achieves 0.26–0.97 L/m²/h during fog periods (Q = η × LWC_median × v × 3.6, η = 0.72), compared with 0.07–0.35 L/m²/h for conventional standard fog collectors (SFC) — a factor of 2–8× higher specific collection efficiency per unit frontal area. The combined daily yield (fog hours + pro-rated clear-hour radiative contribution) reaches 4.0–11.3 L/m²/day for nine of ten climate classes, with tropical coastal climates (Lima/Atacama, 11.3 L/m²/day) and semi-arid coast (Agadir/Nairobi, 8.94 L/m²/day) as the strongest performers.
SEC remains 0.026–0.052 kWh/m³ under active fan operation and approaches zero under wind-driven passive operation. The integrated fog collection capability constitutes additional prior art and is hereby publicly disclosed under CC BY-SA 4.0.
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Recommended Citation
Lius, Vesa Olavi, "ADDENDUM NO. 5: FOG INTEGRATION", Technical Disclosure Commons, (March 10, 2026)
https://www.tdcommons.org/dpubs_series/9489