Accelerating vapor condensation with daytime radiative cooling

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

doi:10.1117/12.2525125

9 September 2019 Accelerating vapor condensation with daytime radiative cooling

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

Author Affiliations +

Proceedings Volume 11121, New Concepts in Solar and Thermal Radiation Conversion II; 1112107 (2019) https://doi.org/10.1117/12.2525125
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

Vapor condensation plays a crucial role in solar water-purification technologies. Conventional condensers in solar water-purification systems do not provide sufficient cooling power for vapor condensation, limiting the water production rate to 0.4 L m^-2 hour^-1. On the other hand, radiative dew condensation, a technique used by existing radiative dew condensers, only works at nighttime and is incompatible with solar water-purification technologies. Here, we develop daytime radiative condensers that reflect almost all solar radiation, and can thus create dew water even in direct sunlight. Compared to stateof- art condensers, our daytime radiative condenser doubles the production of purified water over a 24-hour period.

Conference Presentation

Citation Download Citation

Ming Zhou, Haomin Song, Xingyu Xu, Alireza Shahsafi, Zhenyang Xia, Zhenqiang Ma, Mikhail A. Kats, Jia Zhu, Boon S. Ooi, Qiaoqiang Gan, and Zongfu Yu "Accelerating vapor condensation with daytime radiative cooling", Proc. SPIE 11121, New Concepts in Solar and Thermal Radiation Conversion II, 1112107 (9 September 2019); https://doi.org/10.1117/12.2525125

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available