Vapor condensation with daytime radiative cooling

Ming Zhou; Haomin Song; Xingyu Xu; Alireza Shahsafi; Yurui Qu; Zhenyang Xia; Zhenqiang Ma; Mikhail A. Kats; Jia Zhu; Boon S. Ooi; Qiaoqiang Gan; Zongfu Yu

doi:10.1073/pnas.2019292118

Vapor condensation with daytime radiative cooling

Ming Zhou, Haomin Song, Xingyu Xu, Alireza Shahsafi, Yurui Qu, Zhenyang Xia, Zhenqiang Ma, Mikhail A. Kats, Jia Zhu, Boon S. Ooi, Qiaoqiang Gan, Zongfu Yu

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115 Scopus citations

Abstract

A radiative vapor condenser sheds heat in the form of infrared radiation and cools itself to below the ambient air temperature to produce liquid water from vapor. This effect has been known for centuries, and is exploited by some insects to survive in dry deserts. Humans have also been using radiative condensation for dew collection. However, all existing radiative vapor condensers must operate during the nighttime. Here, we develop daytime radiative condensers that continue to operate 24 h a day. These daytime radiative condensers can produce water from vapor under direct sunlight, without active consumption of energy. Combined with traditional passive cooling via convection and conduction, radiative cooling can substantially increase the performance of passive vapor condensation, which can be used for passive water extraction and purification technologies.

Original language	English (US)
Pages (from-to)	e2019292118
Journal	Proceedings of the National Academy of Sciences
Volume	118
Issue number	14
DOIs	https://doi.org/10.1073/pnas.2019292118
State	Published - Mar 31 2021

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10.1073/pnas.2019292118

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@article{42d9e472d8d649be82d39fcce82bd475,

title = "Vapor condensation with daytime radiative cooling",

abstract = "A radiative vapor condenser sheds heat in the form of infrared radiation and cools itself to below the ambient air temperature to produce liquid water from vapor. This effect has been known for centuries, and is exploited by some insects to survive in dry deserts. Humans have also been using radiative condensation for dew collection. However, all existing radiative vapor condensers must operate during the nighttime. Here, we develop daytime radiative condensers that continue to operate 24 h a day. These daytime radiative condensers can produce water from vapor under direct sunlight, without active consumption of energy. Combined with traditional passive cooling via convection and conduction, radiative cooling can substantially increase the performance of passive vapor condensation, which can be used for passive water extraction and purification technologies.",

author = "Ming Zhou and Haomin Song and Xingyu Xu and Alireza Shahsafi and Yurui Qu and Zhenyang Xia and Zhenqiang Ma and Kats, {Mikhail A.} and Jia Zhu and Ooi, {Boon S.} and Qiaoqiang Gan and Zongfu Yu",

note = "KAUST Repository Item: Exported on 2021-04-05 Acknowledgements: We acknowledge support from the NSF (Award CMMI-156197 to Z.Y. and M.Z.; Award CBET-1932843 to Q.G. and Z.Y.; Award CBET-1932968 to Q.G.; and Grant ECCS-1750341 to M.A.K.). M.Z. acknowledges support from the 3M Fellowship.",

year = "2021",

month = mar,

day = "31",

doi = "10.1073/pnas.2019292118",

language = "English (US)",

volume = "118",

pages = "e2019292118",

journal = "Proceedings of the National Academy of Sciences",

issn = "0027-8424",

publisher = "National Academy of Sciences",

number = "14",

}

TY - JOUR

T1 - Vapor condensation with daytime radiative cooling

AU - Zhou, Ming

AU - Song, Haomin

AU - Xu, Xingyu

AU - Shahsafi, Alireza

AU - Qu, Yurui

AU - Xia, Zhenyang

AU - Ma, Zhenqiang

AU - Kats, Mikhail A.

AU - Zhu, Jia

AU - Ooi, Boon S.

AU - Gan, Qiaoqiang

AU - Yu, Zongfu

N1 - KAUST Repository Item: Exported on 2021-04-05 Acknowledgements: We acknowledge support from the NSF (Award CMMI-156197 to Z.Y. and M.Z.; Award CBET-1932843 to Q.G. and Z.Y.; Award CBET-1932968 to Q.G.; and Grant ECCS-1750341 to M.A.K.). M.Z. acknowledges support from the 3M Fellowship.

PY - 2021/3/31

Y1 - 2021/3/31

N2 - A radiative vapor condenser sheds heat in the form of infrared radiation and cools itself to below the ambient air temperature to produce liquid water from vapor. This effect has been known for centuries, and is exploited by some insects to survive in dry deserts. Humans have also been using radiative condensation for dew collection. However, all existing radiative vapor condensers must operate during the nighttime. Here, we develop daytime radiative condensers that continue to operate 24 h a day. These daytime radiative condensers can produce water from vapor under direct sunlight, without active consumption of energy. Combined with traditional passive cooling via convection and conduction, radiative cooling can substantially increase the performance of passive vapor condensation, which can be used for passive water extraction and purification technologies.

AB - A radiative vapor condenser sheds heat in the form of infrared radiation and cools itself to below the ambient air temperature to produce liquid water from vapor. This effect has been known for centuries, and is exploited by some insects to survive in dry deserts. Humans have also been using radiative condensation for dew collection. However, all existing radiative vapor condensers must operate during the nighttime. Here, we develop daytime radiative condensers that continue to operate 24 h a day. These daytime radiative condensers can produce water from vapor under direct sunlight, without active consumption of energy. Combined with traditional passive cooling via convection and conduction, radiative cooling can substantially increase the performance of passive vapor condensation, which can be used for passive water extraction and purification technologies.

UR - http://hdl.handle.net/10754/668508

UR - http://www.pnas.org/lookup/doi/10.1073/pnas.2019292118

U2 - 10.1073/pnas.2019292118

DO - 10.1073/pnas.2019292118

M3 - Article

C2 - 33790008

SN - 0027-8424

VL - 118

SP - e2019292118

JO - Proceedings of the National Academy of Sciences

JF - Proceedings of the National Academy of Sciences

IS - 14

ER -

Vapor condensation with daytime radiative cooling

Abstract

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