Simultaneous production of fresh water and electricity via multistage solar photovoltaic membrane distillation

被引：301
|
作者：
Wang, Wenbin [1 ]
Shi, Yusuf [1 ]
Zhang, Chenlin [1 ]
Hong, Seunghyun [1 ]
Shi, Le [1 ]
Chang, Jian [1 ]
Li, Renyuan [1 ]
Jin, Yong [1 ,2 ]
Ong, Chisiang [1 ]
Zhuo, Sifei [1 ]
Wang, Peng [1 ,2 ]
机构：
[1] King Abdullah Univ Sci & Technol, Water Desalinat & Reuse Ctr, Div Biol & Environm Sci & Engn, Thuwal 239556900, Saudi Arabia
[2] King Abdullah Univ Sci & Technol, KAUST Solar Ctr KSC, Thuwal 239556900, Saudi Arabia
来源：
NATURE COMMUNICATIONS | 2019年 / 10卷 / 1期
关键词：
THERMAL-CONDUCTIVITY; DESALINATION; EMISSIVITY; GENERATION; COATINGS; COST; STILL;
D O I：
10.1038/s41467-019-10817-6
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The energy shortage and clean water scarcity are two key challenges for global sustainable development. Near half of the total global water withdrawals is consumed by power generation plants while water desalination consumes lots of electricity. Here, we demonstrate a photovoltaics-membrane distillation (PV-MD) device that can stably produce clean water (>1.64 kg.m(-2).h(-1)) from seawater while simultaneously having uncompromised electricity generation performance (>11%) under one Sun irradiation. Its high clean water production rate is realized by constructing multi stage membrane distillation (MSMD) device at the backside of the solar cell to recycle the latent heat of water vapor condensation in each distillation stage. This composite device can significantly reduce capital investment costs by sharing the same land and the same mounting system and thus represents a potential possibility to transform an electricity power plant from otherwise a water consumer to a fresh water producer.
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页数：9
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