What this source contributes.
A 24-hour rooftop chamber run averaged 19.3 g/m²/h of condensation, equivalent to about 0.46 L/m² over that run. Table S1 reports 19.3 g/m²/h. Conversion: 19.3 × 24 = 463.2 g/m², approximately 0.463 L/m² using water density ≈1 kg/L. This is condenser-area normalization and mass formed on the surface. Limit: Humidity was controlled; this is not an ambient-air daily yield or a measurement of water drained into a reservoir. Do not extrapolate the run to annual output. A separate open-air test collected passively removed condensate through the night and into the following day. The supplement shows collected condensate from the 18-hour ambient run; no daily yield is inferred here. Limit: An 18-hour demonstration does not establish a 24-hour ambient yield, climatic reliability or drinkability. At an assumed 90% relative humidity, the paper calculates 85% more potential dew than OPUR foil from measured cooling performance. 85% greater calculated condensate potential at 90% RH; the comparison is not measured collected-water output. Limit: The advantage is modeled from cooling traces. It does not show 85% more water collected in an outdoor head-to-head trial.
main results and supplementary methods. Main-text heat balance and Fig. 2 comparison; Fig. 3 condensation experiments; supplementary dew-harvesting procedure, Table S1 and Fig. S12 proof-of-concept tests. Raw data not reanalyzed. Chamber mass increase, modeled potential and ambient condensate collection are different measurements. Review date: 2026-10-13. AI-assisted source check; not independent replication.
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Primary material consulted
This is a bounded reading note. It is not independent replication, a full systematic review or an endorsement of every conclusion in the paper.
Questions to take to the paper
- Which wet sizes contribute most to attenuation?
- Does a change persist after temperature, humidity and inlet conditions are accounted for?
- Is the measurement representative of the volume people need to see through?
A simulation, chamber result, field observation and operational outcome answer different questions. Record the comparator, measured quantity and conditions before carrying a result into a design.
Bibliographic provenance
Verified 2026-10-13 against the original article and its publisher/repository record. Publication dates retain the precision supplied by the publisher. Metadata may reflect digital republication; it is not always the earliest historical publication date.