海水淡化
蒸发
材料科学
工艺工程
蒸发器
被动式太阳能建筑设计
太阳能淡化
环境科学
太阳能
机械工程
工程物理
工程类
电气工程
气象学
生物
热交换器
物理
遗传学
膜
作者
Minhao Sheng,Yawei Yang,Xiaoqing Bin,Shihan Zhao,Cheng Pan,Fahad Nawaz,Wenxiu Que
出处
期刊:Nano Energy
[Elsevier]
日期:2021-11-01
卷期号:89: 106468-106468
被引量:106
标识
DOI:10.1016/j.nanoen.2021.106468
摘要
Conventional active seawater evaporation technologies, that is, they include components with mechanical moving parts, generally involve large plants with high capital and operating costs. Recently, the passive solar-driven interfacial evaporation (PSDIE) with no active parts is considered as one of the most promising solar energy utilization and freshwater acquisition way. Especially in isolated and impoverished off-grid areas, passive desalination with economic feasibility and reliability has great application prospects. Based on the effective optical-thermal control of evaporator design and reasonable arrangement of deployment scheme, thermal localization in the vapor-liquid interface is conducive to reducing the heat dissipation into the bulk water and significantly improving the efficiency of desalination. Nonetheless, the Achilles’ heel of the technology, namely the existence of salt accumulation at the photothermal interface under the condition of high intensity work including concentrated brine water and intense solar irradiation, which inevitably reduces the availability of fresh water resources and the service life of the evaporator. Addressing this issue is of the utmost importance and arduous task to maintain uninterrupted passive evaporator operation. In this review, the outline of the state-of-the-art self-propelling salt-blocking strategies in PSDIE is mainly divided into three categories, i.e. mechanical removal, shielding effect, and force-driven fluid flow. Finally, the challenges and prospects of salt resistance in PSDIE are emphasized, providing a roadmap for the future development of solar evaporation technology.
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