An All-Passive and Macropatterned Architecture Design for Water Harvesting DOI
Meijie Chen,

Jiepin Wang,

Shuang Li

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 24(50), P. 16143 - 16150

Published: Dec. 6, 2024

Solar evaporation designs show great promise in water harvesting without electricity inputs. Unfortunately, they have been heavily limited by a low yield. To overcome this challenge, we introduced new architecture featuring both system-level and materials-level designs. At the system level, implemented macropatterned with decoupled design for condensation to enhance yield efficiency. This also ensures that condensed droplets do not block solar process. materials selective heating radiative cooling were applied improve passive performance. As proof of concept, our showed an indoor collection rate 2.06 kg m-2 h-1 under one sun average outdoor 1.85 over five consecutive days. The decoupled, all-passive, offers substantial potential commercial applications toward mitigating global scarcity.

Language: Английский

Understanding solar thermal gradient to improve solar evaporation performance for water collection DOI Creative Commons
Xingyu Chen, Qin Ye, Changmin Shi

et al.

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Solar evaporation has attracted great interest in water collection, gaining considerable attention recently. While many efforts have been made to enhance solar thermal conversion performance from materials design aspects, little given the fundamental gradient concept, which significantly affects local heating during evaporation. In this work, polymer sponge evaporator was designed control by adding copper–carbon core–shell (Cu@C) nanoparticles with similar absorptance understand effect of or on performance. The optimized can be 2.0 kg·m−2·h−1 under 1000 W·m−2 (one sun) a Cu@C mass fraction 0.5 wt.%, higher than that observed cases either smaller fraction. A too-small large would heat loss bottom top parts, also confirmed simulation results. Further outdoor yield experiment showed wt.% achieved highest collection (6.67 kg·m−2·d−1) compared other cases, such as 5.92 kg·m−2·d−1 for 0.1 5.29 1 wt.%. These results highlighted impact process.

Language: Английский

Citations

0
An All-Passive and Macropatterned Architecture Design for Water Harvesting DOI
Meijie Chen,

Jiepin Wang,

Shuang Li

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 24(50), P. 16143 - 16150

Published: Dec. 6, 2024

Solar evaporation designs show great promise in water harvesting without electricity inputs. Unfortunately, they have been heavily limited by a low yield. To overcome this challenge, we introduced new architecture featuring both system-level and materials-level designs. At the system level, implemented macropatterned with decoupled design for condensation to enhance yield efficiency. This also ensures that condensed droplets do not block solar process. materials selective heating radiative cooling were applied improve passive performance. As proof of concept, our showed an indoor collection rate 2.06 kg m-2 h-1 under one sun average outdoor 1.85 over five consecutive days. The decoupled, all-passive, offers substantial potential commercial applications toward mitigating global scarcity.

Language: Английский

Citations

2