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All Natural, High Efficient Groundwater Extraction via Solar Steam/Vapor Generation

机译：所有自然、高效的地下水开采通过太阳能蒸汽/蒸汽的一代

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Solar steam/vapor generation is a promising approach to produce clean water and solve water scarcity and energy shortage issues. Most of steam/ vapor generation devices can only be used on surface water from oceans, lakes, or rivers. Groundwater is another essential resource for public water supply. Acquiring clean water directly from groundwater is important, especially for countries and regions that lack surface water. A natural, plant-inspired solar steam/vapor generation device is developed in this work by coating a thin layer of carbon nanotubes (CNTs) on the top surface of a tree stump with roots to extract water directly from groundwater. The 3D interconnected channels/pores in the roots and stump enable fast water transportation within the plant. Under sunlight irradiation, the surface-coated CNT layer can convert solar energy into heat, and the water is continuously supplied to the heat-localized interfacial layer of the top surface and is evaporated into vapor upon heating. The evaporation efficiency of such steam/vapor evaporation device for extracting water from groundwater is as high as =86% under 10 kW m-2, which approaches the best performance achieved by devices for surface water extraction, providing an attractive method to utilize groundwater.
机译：太阳能蒸汽/蒸汽发电是一种很有前途的生产清洁水和解决方法短缺和能源短缺问题。蒸汽/蒸汽生成设备只能被使用表面水从海洋、湖泊或河流。地下水是另一个重要的资源公共供水。直接从地下水是非常重要的,特别是缺乏的国家和地区表面的水。蒸汽/蒸汽发电设备开发的这项工作由涂一层薄薄的碳纳米管的顶面树桩与根中提取的水直接从地下水。在根和树桩使快速水工厂内运输。辐照,CNT surface-coated层将太阳能转换成热量,和水不断提供给heat-localized界面层的顶面和蒸发成蒸汽加热。(蒸汽/蒸汽的蒸发效率蒸发装置提取的水地下水高达10千瓦以下= 86% m - 2,接近最佳性能通过设备表面水萃取,提供一个有吸引力的方法,利用地下水。

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